granicus.if.org Git - postgresql/blob - src/interfaces/ecpg/preproc/preproc.y

   1 /* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Attic/preproc.y,v 1.247 2003/07/14 10:16:44 meskes Exp $ */
   2
   3 /* Copyright comment */
   4 %{
   5 #include "postgres_fe.h"
   6
   7 #include "extern.h"
   8
   9 /*
  10  * Variables containing simple states.
  11  */
  12 int struct_level = 0;
  13 int braces_open; /* brace level counter */
  14 int ecpg_informix_var = 0;
  15 char    errortext[128];
  16 char    *connection = NULL;
  17 char    *input_filename = NULL;
  18
  19 static int      QueryIsRule = 0, FoundInto = 0;
  20 static int      initializer = 0;
  21 static struct this_type actual_type[STRUCT_DEPTH];
  22 static char *actual_storage[STRUCT_DEPTH];
  23 static char *actual_startline[STRUCT_DEPTH];
  24
  25 /* temporarily store struct members while creating the data structure */
  26 struct ECPGstruct_member *struct_member_list[STRUCT_DEPTH] = { NULL };
  27
  28 /* also store struct type so we can do a sizeof() later */
  29 static char *ECPGstruct_sizeof = NULL;
  30
  31 /* for forward declarations we have to store some data as well */
  32 static char *forward_name = NULL;
  33
  34 struct ECPGtype ecpg_no_indicator = {ECPGt_NO_INDICATOR, 0L, NULL, {NULL}};
  35 struct variable no_indicator = {"no_indicator", &ecpg_no_indicator, 0, NULL};
  36
  37 struct ECPGtype ecpg_query = {ECPGt_char_variable, 0L, NULL, {NULL}};
  38
  39 static struct inf_compat_col
  40 {
  41         char *name;
  42         char *indirection;
  43         struct inf_compat_col *next;
  44 } *informix_col;
  45
  46 static struct inf_compat_val
  47 {
  48         char *val;
  49         struct inf_compat_val *next;
  50 } *informix_val;
  51
  52 /*
  53  * Handle parsing errors and warnings
  54  */
  55 void
  56 mmerror(int error_code, enum errortype type, char * error)
  57 {
  58         switch(type)
  59         {
  60                 case ET_WARNING:
  61                         fprintf(stderr, "%s:%d: WARNING: %s\n", input_filename, yylineno, error);
  62                         break;
  63                 case ET_ERROR:
  64                         fprintf(stderr, "%s:%d: ERROR: %s\n", input_filename, yylineno, error);
  65                         ret_value = error_code;
  66                         break;
  67                 case ET_FATAL:
  68                         fprintf(stderr, "%s:%d: ERROR: %s\n", input_filename, yylineno, error);
  69                         exit(error_code);
  70         }
  71 }
  72
  73 /*
  74  * string concatenation
  75  */
  76
  77 static char *
  78 cat2_str(char *str1, char *str2)
  79 {
  80         char * res_str  = (char *)mm_alloc(strlen(str1) + strlen(str2) + 2);
  81
  82         strcpy(res_str, str1);
  83         strcat(res_str, " ");
  84         strcat(res_str, str2);
  85         free(str1);
  86         free(str2);
  87         return(res_str);
  88 }
  89
  90 static char *
  91 cat_str(int count, ...)
  92 {
  93         va_list         args;
  94         int                     i;
  95         char            *res_str;
  96
  97         va_start(args, count);
  98
  99         res_str = va_arg(args, char *);
 100
 101         /* now add all other strings */
 102         for (i = 1; i < count; i++)
 103                 res_str = cat2_str(res_str, va_arg(args, char *));
 104
 105         va_end(args);
 106
 107         return(res_str);
 108 }
 109
 110 char *
 111 make_str(const char *str)
 112 {
 113         char * res_str = (char *)mm_alloc(strlen(str) + 1);
 114
 115         strcpy(res_str, str);
 116         return res_str;
 117 }
 118
 119 static char *
 120 make2_str(char *str1, char *str2)
 121 {
 122         char * res_str  = (char *)mm_alloc(strlen(str1) + strlen(str2) + 1);
 123
 124         strcpy(res_str, str1);
 125         strcat(res_str, str2);
 126         free(str1);
 127         free(str2);
 128         return(res_str);
 129 }
 130
 131 static char *
 132 make3_str(char *str1, char *str2, char *str3)
 133 {
 134         char * res_str  = (char *)mm_alloc(strlen(str1) + strlen(str2) +strlen(str3) + 1);
 135
 136         strcpy(res_str, str1);
 137         strcat(res_str, str2);
 138         strcat(res_str, str3);
 139         free(str1);
 140         free(str2);
 141         free(str3);
 142         return(res_str);
 143 }
 144
 145 /* and the rest */
 146 static char *
 147 make_name(void)
 148 {
 149         char * name = (char *)mm_alloc(yyleng + 1);
 150
 151         strncpy(name, yytext, yyleng);
 152         name[yyleng] = '\0';
 153         return(name);
 154 }
 155
 156 static char *
 157 create_questionmarks(char *name, bool array)
 158 {
 159         struct variable *p = find_variable(name);
 160         int count;
 161         char *result = EMPTY;
 162
 163         /* In case we have a struct, we have to print as many "?" as there are attributes in the struct
 164          * An array is only allowed together with an element argument
 165          * This is essantially only used for inserts, but using a struct as input parameter is an error anywhere else
 166          * so we don't have to worry here. */
 167
 168         if (p->type->type == ECPGt_struct || (array && p->type->type == ECPGt_array && p->type->u.element->type == ECPGt_struct))
 169         {
 170                 struct ECPGstruct_member *m;
 171
 172                 if (p->type->type == ECPGt_struct)
 173                         m = p->type->u.members;
 174                 else
 175                         m = p->type->u.element->u.members;
 176
 177                 for (count = 0; m != NULL; m=m->next, count++);
 178         }
 179         else
 180                 count = 1;
 181
 182         for (; count > 0; count --)
 183                 result = cat2_str(result, make_str("? , "));
 184
 185         /* removed the trailing " ," */
 186
 187         result[strlen(result)-3] = '\0';
 188         return(result);
 189 }
 190
 191 static char *
 192 adjust_informix(struct arguments *list)
 193 {
 194         /* Informix accepts DECLARE with variables that are out of scope when OPEN is called.
 195          * This breaks standard and leads to some very dangerous programming.
 196          * Since they do, we have to work around and accept their syntax as well.
 197          * But we will do so ONLY in Informix mode.
 198          * We have to change the variables to our own struct and just store the pointer instead of the variable */
 199
 200          struct arguments *ptr;
 201          char *result = make_str("");
 202
 203          for (ptr = list; ptr != NULL; ptr = ptr->next)
 204          {
 205                 char temp[20]; /* this should be sufficient unless you have 8 byte integers */
 206                 char *original_var;
 207
 208                 /* change variable name to "ECPG_informix_get_var(<counter>)" */
 209                 original_var = ptr->variable->name;
 210                 sprintf(temp, "%d))", ecpg_informix_var);
 211
 212                 /* create call to "ECPG_informix_set_var(<counter>, <pointer>. <linen number>)" */
 213                 if (atoi(ptr->variable->type->size) > 1)
 214                 {
 215                         ptr->variable = new_variable(cat_str(4, make_str("("), mm_strdup(ECPGtype_name(ptr->variable->type->type)), make_str(" *)(ECPG_informix_get_var("), mm_strdup(temp)), ECPGmake_simple_type(ptr->variable->type->type, ptr->variable->type->size), 0);
 216                         sprintf(temp, "%d, (", ecpg_informix_var++);
 217                 }
 218                 else
 219                 {
 220                         ptr->variable = new_variable(cat_str(4, make_str("*("), mm_strdup(ECPGtype_name(ptr->variable->type->type)), make_str(" *)(ECPG_informix_get_var("), mm_strdup(temp)), ECPGmake_simple_type(ptr->variable->type->type, ptr->variable->type->size), 0);
 221                         sprintf(temp, "%d, &(", ecpg_informix_var++);
 222                 }
 223                 result = cat_str(5, result, make_str("ECPG_informix_set_var("), mm_strdup(temp), mm_strdup(original_var), make_str("), __LINE__);\n"));
 224
 225                 /* now the indicator if there is one */
 226                 if (ptr->indicator->type->type != ECPGt_NO_INDICATOR)
 227                 {
 228                         /* change variable name to "ECPG_informix_get_var(<counter>)" */
 229                         original_var = ptr->indicator->name;
 230                         sprintf(temp, "%d))", ecpg_informix_var);
 231
 232                         /* create call to "ECPG_informix_set_var(<counter>, <pointer>. <linen number>)" */
 233                         if (atoi(ptr->indicator->type->size) > 1)
 234                         {
 235                                 ptr->indicator = new_variable(cat_str(4, make_str("("), mm_strdup(ECPGtype_name(ptr->indicator->type->type)), make_str(" *)(ECPG_informix_get_var("), mm_strdup(temp)), ECPGmake_simple_type(ptr->indicator->type->type, ptr->indicator->type->size), 0);
 236                                 sprintf(temp, "%d, (", ecpg_informix_var++);
 237                         }
 238                         else
 239                         {
 240                                 ptr->indicator = new_variable(cat_str(4, make_str("*("), mm_strdup(ECPGtype_name(ptr->indicator->type->type)), make_str(" *)(ECPG_informix_get_var("), mm_strdup(temp)), ECPGmake_simple_type(ptr->indicator->type->type, ptr->indicator->type->size), 0);
 241                                 sprintf(temp, "%d, &(", ecpg_informix_var++);
 242                         }
 243                         result = cat_str(5, result, make_str("ECPG_informix_set_var("), mm_strdup(temp), mm_strdup(original_var), make_str("), __LINE__);\n"));
 244                 }
 245          }
 246
 247          return result;
 248 }
 249
 250 %}
 251
 252 %union {
 253         double  dval;
 254         char    *str;
 255         int     ival;
 256         struct  when            action;
 257         struct  index           index;
 258         int             tagname;
 259         struct  this_type       type;
 260         enum    ECPGttype       type_enum;
 261         enum    ECPGdtype       dtype_enum;
 262         struct  fetch_desc      descriptor;
 263         struct  su_symbol       struct_union;
 264 }
 265
 266 /* special embedded SQL token */
 267 %token  SQL_ALLOCATE SQL_AUTOCOMMIT SQL_BOOL SQL_BREAK
 268                 SQL_CALL SQL_CARDINALITY SQL_CONNECT SQL_CONNECTION
 269                 SQL_CONTINUE SQL_COUNT SQL_CURRENT SQL_DATA
 270                 SQL_DATETIME_INTERVAL_CODE
 271                 SQL_DATETIME_INTERVAL_PRECISION SQL_DESCRIBE
 272                 SQL_DESCRIPTOR SQL_DISCONNECT SQL_ENUM SQL_FOUND
 273                 SQL_FREE SQL_GO SQL_GOTO SQL_IDENTIFIED
 274                 SQL_INDICATOR SQL_KEY_MEMBER SQL_LENGTH
 275                 SQL_LONG SQL_NAME SQL_NULLABLE SQL_OCTET_LENGTH
 276                 SQL_OPEN SQL_OUTPUT SQL_RELEASE SQL_REFERENCE
 277                 SQL_RETURNED_LENGTH SQL_RETURNED_OCTET_LENGTH SQL_SCALE
 278                 SQL_SECTION SQL_SHORT SQL_SIGNED SQL_SQL SQL_SQLERROR
 279                 SQL_SQLPRINT SQL_SQLWARNING SQL_START SQL_STOP
 280                 SQL_STRUCT SQL_UNSIGNED SQL_VALUE SQL_VAR SQL_WHENEVER
 281
 282 /* C token */
 283 %token  S_ADD S_AND S_ANYTHING S_AUTO S_CONST S_DEC S_DIV
 284                 S_DOTPOINT S_EQUAL S_EXTERN S_INC S_LSHIFT S_MEMPOINT
 285                 S_MEMBER S_MOD S_MUL S_NEQUAL S_OR S_REGISTER S_RSHIFT
 286                 S_STATIC S_SUB S_VOLATILE
 287                 S_TYPEDEF
 288
 289 /* I need this and don't know where it is defined inside the backend */
 290 %token  TYPECAST
 291
 292 /* ordinary key words in alphabetical order */
 293 %token <keyword> ABORT_P ABSOLUTE_P ACCESS ACTION ADD AFTER
 294         AGGREGATE ALL ALTER ANALYSE ANALYZE AND ANY ARRAY AS ASC
 295         ASSERTION ASSIGNMENT AT AUTHORIZATION
 296
 297         BACKWARD BEFORE BEGIN_P BETWEEN BIGINT BINARY BIT
 298         BOOLEAN_P BOTH BY
 299
 300         CACHE CALLED CASCADE CASE CAST CHAIN CHAR_P
 301         CHARACTER CHARACTERISTICS CHECK CHECKPOINT CLASS CLOSE
 302         CLUSTER COALESCE COLLATE COLUMN COMMENT COMMIT
 303         COMMITTED CONSTRAINT CONSTRAINTS CONVERSION_P CONVERT COPY
 304         CREATE CREATEDB CREATEUSER CROSS CURRENT_DATE CURRENT_TIME
 305         CURRENT_TIMESTAMP CURRENT_USER CURSOR CYCLE
 306
 307         DATABASE DAY_P DEALLOCATE DEC DECIMAL_P DECLARE DEFAULT DEFAULTS
 308         DEFERRABLE DEFERRED DEFINER DELETE_P DELIMITER DELIMITERS
 309         DESC DISTINCT DO DOMAIN_P DOUBLE_P DROP
 310         EACH ELSE ENCODING ENCRYPTED END_P ESCAPE EXCEPT EXCLUSIVE EXCLUDING
 311         EXECUTE EXISTS EXPLAIN EXTERNAL EXTRACT
 312
 313         FALSE_P FETCH FIRST_P FLOAT_P FOR FORCE FOREIGN FORWARD FREEZE FROM
 314         FULL FUNCTION
 315
 316         GET GLOBAL GRANT GROUP_P
 317         HANDLER HAVING HOLD HOUR_P
 318
 319         ILIKE IMMEDIATE IMMUTABLE IMPLICIT_P IN_P INCLUDING INCREMENT
 320         INDEX INHERITS INITIALLY INNER_P INOUT INPUT_P
 321         INSENSITIVE INSERT INSTEAD INT_P INTEGER INTERSECT
 322         INTERVAL INTO INVOKER IS ISNULL ISOLATION
 323
 324         JOIN
 325
 326         KEY
 327
 328         LANCOMPILER LANGUAGE LAST_P LEADING LEFT LEVEL LIKE LIMIT LISTEN
 329         LOAD LOCAL LOCATION LOCK_P
 330
 331         MATCH MAXVALUE MINUTE_P MINVALUE MODE MONTH_P MOVE
 332
 333         NAMES NATIONAL NATURAL NCHAR NEW NEXT NO NOCREATEDB
 334         NOCREATEUSER NONE NOT NOTHING NOTIFY NOTNULL NULL_P NULLIF
 335         NUMERIC
 336
 337         OF OFF OFFSET OIDS OLD ON ONLY OPERATOR OPTION OR ORDER
 338         OUT_P OUTER_P OVERLAPS OVERLAY OWNER
 339
 340         PARTIAL PASSWORD PATH_P PENDANT PLACING POSITION
 341         PRECISION PRESERVE PREPARE PRIMARY PRIOR PRIVILEGES PROCEDURAL PROCEDURE
 342
 343         READ REAL RECHECK REFERENCES REINDEX RELATIVE_P RENAME REPLACE
 344         RESET RESTART RESTRICT RETURNS REVOKE RIGHT ROLLBACK ROW ROWS RULE
 345
 346         SCHEMA SCROLL SECOND_P SECURITY SELECT SEQUENCE SERIALIZABLE
 347         SESSION SESSION_USER SET SETOF SHARE SHOW SIMILAR SIMPLE SMALLINT SOME
 348         STABLE START STATEMENT STATISTICS STDIN STDOUT STORAGE STRICT_P
 349         SUBSTRING SYSID
 350
 351         TABLE TEMP TEMPLATE TEMPORARY THEN TIME TIMESTAMP TO TOAST
 352         TRAILING TRANSACTION TREAT TRIGGER TRIM TRUE_P TRUNCATE TRUSTED TYPE_P
 353         UNENCRYPTED UNION UNIQUE UNKNOWN UNLISTEN UNTIL UPDATE USAGE
 354         USER USING
 355
 356         VACUUM VALID VALUES VARCHAR VARYING VERBOSE VERSION VIEW VOLATILE
 357         WHEN WHERE WITH WITHOUT WORK WRITE
 358         YEAR_P
 359         ZONE
 360
 361 /* The grammar thinks these are keywords, but they are not in the keywords.c
 362  * list and so can never be entered directly.  The filter in parser.c
 363  * creates these tokens when required.
 364  */
 365 %token  UNIONJOIN
 366
 367 /* Special keywords, not in the query language - see the "lex" file */
 368 %token <str>    IDENT SCONST Op CSTRING CVARIABLE CPP_LINE IP BCONST XCONST
 369 %token <ival>   ICONST PARAM
 370 %token <dval>   FCONST
 371
 372 /* precedence: lowest to highest */
 373 %left           UNION EXCEPT
 374 %left           INTERSECT
 375 %left           OR
 376 %left           AND
 377 %right          NOT
 378 %right          '='
 379 %nonassoc       '<' '>'
 380 %nonassoc       LIKE ILIKE SIMILAR
 381 %nonassoc       ESCAPE
 382 %nonassoc       OVERLAPS
 383 %nonassoc       BETWEEN
 384 %nonassoc       IN_P
 385 %left           POSTFIXOP                                       /* dummy for postfix Op rules */
 386 %left           Op OPERATOR                             /* multi-character ops and user-defined operators */
 387 %nonassoc       NOTNULL
 388 %nonassoc       ISNULL
 389 %nonassoc       IS NULL_P TRUE_P FALSE_P UNKNOWN
 390 %left           '+' '-'
 391 %left           '*' '/' '%'
 392 %left           '^'
 393 /* Unary Operators */
 394 %left           AT ZONE
 395 %right          UMINUS
 396 %left           '[' ']'
 397 %left           '(' ')'
 398 %left           TYPECAST
 399 %left           '.'
 400 %left           JOIN UNIONJOIN CROSS LEFT FULL RIGHT INNER_P NATURAL
 401
 402 %type  <str>    Iconst Fconst Sconst TransactionStmt CreateStmt UserId
 403 %type  <str>    CreateAsElement OptCreateAs CreateAsList CreateAsStmt
 404 %type  <str>    comment_text ConstraintDeferrabilitySpec TableElementList
 405 %type  <str>    key_match ColLabel SpecialRuleRelation ColId columnDef
 406 %type  <str>    ColConstraint ColConstraintElem drop_type Bconst Iresult
 407 %type  <str>    TableConstraint OptTableElementList Xconst opt_transaction
 408 %type  <str>    ConstraintElem key_actions ColQualList type_name
 409 %type  <str>    target_list target_el update_target_list alias_clause
 410 %type  <str>    update_target_el qualified_name database_name
 411 %type  <str>    access_method attr_name index_name name func_name
 412 %type  <str>    file_name AexprConst c_expr ConstTypename var_list
 413 %type  <str>    a_expr b_expr TruncateStmt CommentStmt OnCommitOption opt_by
 414 %type  <str>    opt_indirection expr_list extract_list extract_arg
 415 %type  <str>    position_list substr_list substr_from alter_column_default
 416 %type  <str>    trim_list in_expr substr_for attrs TableFuncElement
 417 %type  <str>    Typename SimpleTypename Numeric opt_float opt_numeric
 418 %type  <str>    opt_decimal Character character opt_varying opt_charset
 419 %type  <str>    opt_collate opt_timezone opt_interval table_ref fetch_direction
 420 %type  <str>    row_descriptor ConstDatetime AlterDomainStmt AlterSeqStmt
 421 %type  <str>    SelectStmt into_clause OptTemp ConstraintAttributeSpec
 422 %type  <str>    opt_table opt_all sort_clause sortby_list ConstraintAttr
 423 %type  <str>    sortby OptUseOp qualified_name_list name_list ColId_or_Sconst
 424 %type  <str>    group_clause having_clause from_clause opt_distinct opt_hold
 425 %type  <str>    join_outer where_clause relation_expr sub_type opt_arg
 426 %type  <str>    opt_column_list insert_rest InsertStmt
 427 %type  <str>    columnList DeleteStmt LockStmt UpdateStmt DeclareCursorStmt
 428 %type  <str>    NotifyStmt columnElem UnlistenStmt TableElement rowdefinition
 429 %type  <str>    copy_delimiter ListenStmt CopyStmt copy_file_name opt_binary
 430 %type  <str>    FetchStmt from_in CreateOpClassStmt like_including_defaults
 431 %type  <str>    ClosePortalStmt DropStmt VacuumStmt AnalyzeStmt opt_verbose
 432 %type  <str>    opt_full func_arg OptWithOids opt_freeze
 433 %type  <str>    analyze_keyword opt_name_list ExplainStmt index_params
 434 %type  <str>    index_elem opt_class access_method_clause
 435 %type  <str>    index_opt_unique IndexStmt func_return ConstInterval
 436 %type  <str>    func_args_list func_args opt_with def_arg overlay_placing
 437 %type  <str>    def_elem def_list definition DefineStmt select_with_parens
 438 %type  <str>    opt_instead event RuleActionList opt_using CreateAssertStmt
 439 %type  <str>    RuleActionStmtOrEmpty RuleActionMulti func_as reindex_type
 440 %type  <str>    RuleStmt opt_column opt_name oper_argtypes NumConst
 441 %type  <str>    MathOp RemoveFuncStmt aggr_argtype for_update_clause
 442 %type  <str>    RemoveAggrStmt opt_procedural select_no_parens CreateCastStmt
 443 %type  <str>    RemoveOperStmt RenameStmt all_Op opt_Trusted opt_lancompiler
 444 %type  <str>    VariableSetStmt var_value zone_value VariableShowStmt
 445 %type  <str>    VariableResetStmt AlterTableStmt from_list overlay_list
 446 %type  <str>    user_list OptUserList OptUserElem relation_name
 447 %type  <str>    CreateUserStmt AlterUserStmt CreateSeqStmt OptSeqList
 448 %type  <str>    OptSeqElem TriggerForSpec TriggerForOpt TriggerForType
 449 %type  <str>    DropTrigStmt TriggerOneEvent TriggerEvents RuleActionStmt
 450 %type  <str>    TriggerActionTime CreateTrigStmt DropPLangStmt DropCastStmt
 451 %type  <str>    CreatePLangStmt TriggerFuncArgs TriggerFuncArg simple_select
 452 %type  <str>    ViewStmt LoadStmt CreatedbStmt createdb_opt_item ExplainableStmt
 453 %type  <str>    createdb_opt_list opt_encoding OptInherit opt_equal
 454 %type  <str>    AlterUserSetStmt privilege_list privilege privilege_target
 455 %type  <str>    opt_grant_grant_option opt_revoke_grant_option cursor_options
 456 %type  <str>    transaction_mode_list_or_empty transaction_mode_list
 457 %type  <str>    function_with_argtypes_list function_with_argtypes
 458 %type  <str>    DropdbStmt ClusterStmt grantee RevokeStmt Bit DropOpClassStmt
 459 %type  <str>    GrantStmt privileges PosAllConst constraints_set_list
 460 %type  <str>    ConstraintsSetStmt AllConst CreateDomainStmt
 461 %type  <str>    case_expr when_clause_list case_default case_arg when_clause
 462 %type  <str>    select_clause opt_select_limit select_limit_value opt_recheck
 463 %type  <str>    ConstraintTimeSpec AlterDatabaseSetStmt DropAssertStmt
 464 %type  <str>    select_offset_value ReindexStmt join_type opt_boolean
 465 %type  <str>    join_qual update_list joined_table opclass_item fetch_count
 466 %type  <str>    opt_lock lock_type OptGroupList OptGroupElem array_expr_list
 467 %type  <str>    OptConstrFromTable OptTempTableName StringConst array_expr
 468 %type  <str>    constraints_set_mode comment_type opt_empty_parentheses
 469 %type  <str>    CreateGroupStmt AlterGroupStmt DropGroupStmt key_delete
 470 %type  <str>    opt_force key_update CreateSchemaStmt PosIntStringConst
 471 %type  <str>    IntConst PosIntConst grantee_list func_type opt_or_replace
 472 %type  <str>    select_limit opt_for_update_clause CheckPointStmt
 473 %type  <str>    OptSchemaName OptSchemaEltList schema_stmt opt_drop_behavior
 474 %type  <str>    handler_name any_name_list any_name opt_as insert_column_list
 475 %type  <str>    columnref dotted_name function_name insert_target_el
 476 %type  <str>    insert_target_list insert_column_item DropRuleStmt
 477 %type  <str>    createfunc_opt_item set_rest var_list_or_default
 478 %type  <str>    CreateFunctionStmt createfunc_opt_list func_table
 479 %type  <str>    DropUserStmt copy_from copy_opt_list copy_opt_item
 480 %type  <str>    opt_oids TableLikeClause key_action opt_definition
 481 %type  <str>    cast_context row r_expr qual_Op qual_all_Op opt_default
 482 %type  <str>    CreateConversionStmt any_operator opclass_item_list
 483 %type  <str>    iso_level type_list CharacterWithLength ConstCharacter
 484 %type  <str>    CharacterWithoutLength BitWithLength BitWithoutLength
 485 %type  <str>    ConstBit GenericType TableFuncElementList opt_analyze
 486 %type  <str>    opt_sort_clause transaction_access_mode
 487
 488 %type  <str>    ECPGWhenever ECPGConnect connection_target ECPGOpen
 489 %type  <str>    indicator ECPGExecute ECPGPrepare ecpg_using ecpg_into
 490 %type  <str>    storage_declaration storage_clause opt_initializer c_anything
 491 %type  <str>    variable_list variable c_thing c_term ECPGKeywords_vanames
 492 %type  <str>    opt_pointer ECPGDisconnect dis_name storage_modifier
 493 %type  <str>    ECPGRelease execstring server_name ECPGVarDeclaration
 494 %type  <str>    connection_object opt_server opt_port c_stuff c_stuff_item
 495 %type  <str>    user_name opt_user char_variable ora_user ident opt_reference
 496 %type  <str>    var_type_declarations quoted_ident_stringvar ECPGKeywords_rest
 497 %type  <str>    db_prefix server opt_options opt_connection_name c_list
 498 %type  <str>    ECPGSetConnection ECPGTypedef c_args ECPGKeywords
 499 %type  <str>    enum_type civar civarind ECPGCursorStmt ECPGDeallocate
 500 %type  <str>    ECPGFree ECPGDeclare ECPGVar opt_at enum_definition
 501 %type  <str>    struct_union_type s_struct_union vt_declarations execute_rest
 502 %type  <str>    var_declaration type_declaration single_vt_declaration
 503 %type  <str>    ECPGSetAutocommit on_off variable_declarations ECPGDescribe
 504 %type  <str>    ECPGAllocateDescr ECPGDeallocateDescr symbol opt_output
 505 %type  <str>    ECPGGetDescriptorHeader ECPGColLabel single_var_declaration
 506 %type  <str>    reserved_keyword unreserved_keyword ecpg_interval opt_ecpg_using
 507 %type  <str>    col_name_keyword func_name_keyword precision opt_scale
 508 %type  <str>    ECPGTypeName using_list ECPGColLabelCommon UsingConst
 509 %type  <str>    inf_val_list inf_col_list using_descriptor into_descriptor
 510 %type  <str>    ecpg_into_using
 511
 512 %type  <struct_union> s_struct_union_symbol
 513
 514 %type  <descriptor> ECPGGetDescriptor
 515
 516 %type  <type_enum> simple_type signed_type unsigned_type
 517
 518 %type  <dtype_enum> descriptor_item desc_header_item
 519
 520 %type  <type>   var_type common_type single_vt_type
 521 %type  <type>   struct_union_type_with_symbol
 522
 523 %type  <action> action
 524
 525 %type  <index>  opt_array_bounds
 526
 527 %%
 528 prog: statements;
 529
 530 statements: /*EMPTY*/
 531                 | statements statement
 532                 ;
 533
 534 statement: ecpgstart opt_at stmt ';'    { connection = NULL; }
 535                 | ecpgstart stmt ';'
 536                 | ecpgstart ECPGVarDeclaration
 537                 {
 538                         fprintf(yyout, "%s", $2);
 539                         free($2);
 540                         output_line_number();
 541                 }
 542                 | ECPGDeclaration
 543                 | c_thing               { fprintf(yyout, "%s", $1); free($1); }
 544                 | CPP_LINE              { fprintf(yyout, "%s", $1); free($1); }
 545                 | '{'                   { braces_open++; fputs("{", yyout); }
 546                 | '}'                   { remove_variables(braces_open--); fputs("}", yyout); }
 547                 ;
 548
 549 opt_at: AT connection_target
 550                 {
 551                         connection = $2;
 552                         /*
 553                          *      Do we have a variable as connection target?
 554                          *      Remove the variable from the variable
 555                          *      list or else it will be used twice
 556                          */
 557                         if (argsinsert != NULL)
 558                                 argsinsert = NULL;
 559                 };
 560
 561 stmt:  AlterDatabaseSetStmt             { output_statement($1, 0, connection); }
 562                 | AlterDomainStmt       { output_statement($1, 0, connection); }
 563                 | AlterGroupStmt        { output_statement($1, 0, connection); }
 564                 | AlterSeqStmt          { output_statement($1, 0, connection); }
 565                 | AlterTableStmt        { output_statement($1, 0, connection); }
 566                 | AlterUserSetStmt      { output_statement($1, 0, connection); }
 567                 | AlterUserStmt         { output_statement($1, 0, connection); }
 568                 | AnalyzeStmt           { output_statement($1, 0, connection); }
 569                 | CheckPointStmt        { output_statement($1, 0, connection); }
 570                 | ClosePortalStmt
 571                 {
 572                         if (INFORMIX_MODE)
 573                         {
 574                                 /* Informix also has a CLOSE DATABASE command that
 575                                    essantially works like a DISCONNECT CURRENT
 576                                    as far as I know. */
 577                                 if (strcasecmp($1+strlen("close "), "database") == 0)
 578                                 {
 579                                         if (connection)
 580                                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for close database statement.\n");
 581
 582                                         fprintf(yyout, "{ ECPGdisconnect(__LINE__, \"CURRENT\");");
 583                                         whenever_action(2);
 584                                         free($1);
 585                                 }
 586                                 else
 587                                         output_statement($1, 0, connection);
 588                         }
 589                         else
 590                                 output_statement($1, 0, connection);
 591                 }
 592                 | ClusterStmt           { output_statement($1, 0, connection); }
 593                 | CommentStmt           { output_statement($1, 0, connection); }
 594                 | ConstraintsSetStmt    { output_statement($1, 0, connection); }
 595                 | CopyStmt              { output_statement($1, 0, connection); }
 596                 | CreateAsStmt          { output_statement($1, 0, connection); }
 597                 | CreateAssertStmt      { output_statement($1, 0, connection); }
 598                 | CreateCastStmt        { output_statement($1, 0, connection); }
 599                 | CreateConversionStmt  { output_statement($1, 0, connection); }
 600                 | CreateDomainStmt      { output_statement($1, 0, connection); }
 601                 | CreateFunctionStmt    { output_statement($1, 0, connection); }
 602                 | CreateGroupStmt       { output_statement($1, 0, connection); }
 603                 | CreatePLangStmt       { output_statement($1, 0, connection); }
 604                 | CreateOpClassStmt     { output_statement($1, 0, connection); }
 605                 | CreateSchemaStmt      { output_statement($1, 0, connection); }
 606                 | CreateSeqStmt         { output_statement($1, 0, connection); }
 607                 | CreateStmt            { output_statement($1, 0, connection); }
 608                 | CreateTrigStmt        { output_statement($1, 0, connection); }
 609                 | CreateUserStmt        { output_statement($1, 0, connection); }
 610                 | CreatedbStmt          { output_statement($1, 0, connection); }
 611                 /*| DeallocateStmt      { output_statement($1, 0, connection); }*/
 612                 | DeclareCursorStmt     { output_simple_statement($1); }
 613                 | DefineStmt            { output_statement($1, 0, connection); }
 614                 | DeleteStmt            { output_statement($1, 0, connection); }
 615                 | DropAssertStmt        { output_statement($1, 0, connection); }
 616                 | DropCastStmt          { output_statement($1, 0, connection); }
 617                 | DropGroupStmt         { output_statement($1, 0, connection); }
 618                 | DropOpClassStmt       { output_statement($1, 0, connection); }
 619                 | DropPLangStmt         { output_statement($1, 0, connection); }
 620                 | DropRuleStmt          { output_statement($1, 0, connection); }
 621                 | DropStmt              { output_statement($1, 0, connection); }
 622                 | DropTrigStmt          { output_statement($1, 0, connection); }
 623                 | DropUserStmt          { output_statement($1, 0, connection); }
 624                 | DropdbStmt            { output_statement($1, 0, connection); }
 625                 | ExplainStmt           { output_statement($1, 0, connection); }
 626 /*              | ExecuteStmt           { output_statement($1, 0, connection); }*/
 627                 | FetchStmt             { output_statement($1, 1, connection); }
 628                 | GrantStmt             { output_statement($1, 0, connection); }
 629                 | IndexStmt             { output_statement($1, 0, connection); }
 630                 | InsertStmt            { output_statement($1, 0, connection); }
 631                 | ListenStmt            { output_statement($1, 0, connection); }
 632                 | LoadStmt              { output_statement($1, 0, connection); }
 633                 | LockStmt              { output_statement($1, 0, connection); }
 634                 | NotifyStmt            { output_statement($1, 0, connection); }
 635 /*              | PrepareStmt           { output_statement($1, 0, connection); }*/
 636                 | ReindexStmt           { output_statement($1, 0, connection); }
 637                 | RemoveAggrStmt        { output_statement($1, 0, connection); }
 638                 | RemoveOperStmt        { output_statement($1, 0, connection); }
 639                 | RemoveFuncStmt        { output_statement($1, 0, connection); }
 640                 | RenameStmt            { output_statement($1, 0, connection); }
 641                 | RevokeStmt            { output_statement($1, 0, connection); }
 642                 | RuleStmt              { output_statement($1, 0, connection); }
 643                 | SelectStmt            { output_statement($1, 0, connection); }
 644                 | TransactionStmt
 645                 {
 646                         fprintf(yyout, "{ ECPGtrans(__LINE__, %s, \"%s\");", connection ? connection : "NULL", $1);
 647                         whenever_action(2);
 648                         free($1);
 649                 }
 650                 | TruncateStmt          { output_statement($1, 0, connection); }
 651                 | UnlistenStmt          { output_statement($1, 0, connection); }
 652                 | UpdateStmt            { output_statement($1, 0, connection); }
 653                 | VacuumStmt            { output_statement($1, 0, connection); }
 654                 | VariableSetStmt       { output_statement($1, 0, connection); }
 655                 | VariableShowStmt      { output_statement($1, 0, connection); }
 656                 | VariableResetStmt     { output_statement($1, 0, connection); }
 657                 | ViewStmt              { output_statement($1, 0, connection); }
 658                 | ECPGAllocateDescr
 659                 {
 660                         fprintf(yyout,"ECPGallocate_desc(__LINE__, %s);",$1);
 661                         whenever_action(0);
 662                         free($1);
 663                 }
 664                 | ECPGConnect
 665                 {
 666                         if (connection)
 667                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for connect statement.\n");
 668
 669                         fprintf(yyout, "{ ECPGconnect(__LINE__, %d, %s, %d); ", compat, $1, autocommit);
 670                         reset_variables();
 671                         whenever_action(2);
 672                         free($1);
 673                 }
 674                 | ECPGCursorStmt
 675                 {
 676                         output_simple_statement($1);
 677                 }
 678                 | ECPGDeallocate
 679                 {
 680                         if (connection)
 681                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for deallocate statement.\n");
 682                         fprintf(yyout, "{ ECPGdeallocate(__LINE__, \"%s\");", $1);
 683                         whenever_action(2);
 684                         free($1);
 685                 }
 686                 | ECPGDeallocateDescr
 687                 {
 688                         if (connection)
 689                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for deallocate statement.\n");
 690                         fprintf(yyout,"ECPGdeallocate_desc(__LINE__, %s);",$1);
 691                         whenever_action(0);
 692                         free($1);
 693                 }
 694                 | ECPGDeclare
 695                 {
 696                         output_simple_statement($1);
 697                 }
 698                 | ECPGDescribe
 699                 {
 700                         fprintf(yyout, "{ ECPGdescribe(__LINE__, %s,", $1);
 701                         dump_variables(argsresult, 1);
 702                         fputs("ECPGt_EORT);", yyout);
 703                         fprintf(yyout, "}");
 704                         output_line_number();
 705
 706                         /* whenever_action(2); */
 707                         free($1);
 708                 }
 709                 | ECPGDisconnect
 710                 {
 711                         if (connection)
 712                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for disconnect statement.\n");
 713
 714                         fprintf(yyout, "{ ECPGdisconnect(__LINE__, %s);",
 715                                         $1 ? $1 : "\"CURRENT\"");
 716                         whenever_action(2);
 717                         free($1);
 718                 }
 719                 | ECPGExecute
 720                 {
 721                         output_statement($1, 0, connection);
 722                 }
 723                 | ECPGFree
 724                 {
 725                         fprintf(yyout, "{ ECPGdeallocate(__LINE__, %d, \"%s\");", compat, $1);
 726
 727                         whenever_action(2);
 728                         free($1);
 729                 }
 730                 | ECPGGetDescriptor
 731                 {
 732                         lookup_descriptor($1.name, connection);
 733                         output_get_descr($1.name, $1.str);
 734                         free($1.name);
 735                         free($1.str);
 736                 }
 737                 | ECPGGetDescriptorHeader
 738                 {
 739                         lookup_descriptor($1, connection);
 740                         output_get_descr_header($1);
 741                         free($1);
 742                 }
 743                 | ECPGOpen
 744                 {
 745                         struct cursor *ptr;
 746                         struct arguments *p;
 747
 748                         for (ptr = cur; ptr != NULL; ptr=ptr->next)
 749                         {
 750                                 if (strcmp(ptr->name, $1) == 0)
 751                                         break;
 752                         }
 753
 754                         if (ptr == NULL)
 755                         {
 756                                 snprintf(errortext, sizeof(errortext), "trying to open undeclared cursor %s\n", $1);
 757                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
 758                         }
 759                         else
 760                         {
 761                                 /* merge variables given in prepare statement with those given here */
 762                                 for (p = ptr->argsinsert; p; p = p->next)
 763                                         append_variable(&argsinsert, p->variable, p->indicator);
 764
 765                                 for (p = ptr->argsresult; p; p = p->next)
 766                                         add_variable(&argsresult, p->variable, p->indicator);
 767
 768                                 output_statement(mm_strdup(ptr->command), 0, ptr->connection ? mm_strdup(ptr->connection) : NULL);
 769                         }
 770                 }
 771                 | ECPGPrepare
 772                 {
 773                         if (connection)
 774                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for prepare statement.\n");
 775
 776                         fprintf(yyout, "{ ECPGprepare(__LINE__, %s);", $1);
 777                         whenever_action(2);
 778                         free($1);
 779                 }
 780                 | ECPGRelease           { /* output already done */ }
 781                 | ECPGSetAutocommit
 782                 {
 783                         fprintf(yyout, "{ ECPGsetcommit(__LINE__, \"%s\", %s);", $1, connection ? connection : "NULL");
 784                         whenever_action(2);
 785                         free($1);
 786                 }
 787                 | ECPGSetConnection
 788                 {
 789                         if (connection)
 790                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for set connection statement.\n");
 791
 792                         fprintf(yyout, "{ ECPGsetconn(__LINE__, %s);", $1);
 793                         whenever_action(2);
 794                         free($1);
 795                 }
 796                 | ECPGTypedef
 797                 {
 798                         if (connection)
 799                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for typedef statement.\n");
 800
 801                         fprintf(yyout, "%s", $1);
 802                         free($1);
 803                         output_line_number();
 804                 }
 805                 | ECPGVar
 806                 {
 807                         if (connection)
 808                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for var statement.\n");
 809
 810                         output_simple_statement($1);
 811                 }
 812                 | ECPGWhenever
 813                 {
 814                         if (connection)
 815                                 mmerror(PARSE_ERROR, ET_ERROR, "no at option for whenever statement.\n");
 816
 817                         output_simple_statement($1);
 818                 }
 819                 ;
 820
 821
 822 /*
 823  * We start with a lot of stuff that's very similar to the backend's parsing
 824  */
 825
 826 /*****************************************************************************
 827  *
 828  * Create a new Postgres DBMS user
 829  *
 830  *
 831  *****************************************************************************/
 832
 833 CreateUserStmt: CREATE USER UserId opt_with OptUserList
 834                         { $$ = cat_str(4, make_str("create user"), $3, make_str("with"), $5); }
 835                 ;
 836
 837 opt_with:  WITH                 { $$ = make_str("with"); }
 838                 | /*EMPTY*/     { $$ = EMPTY; }
 839                 ;
 840
 841
 842 /*****************************************************************************
 843  *
 844  * Alter a postgresql DBMS user
 845  *
 846  *
 847  *****************************************************************************/
 848
 849 AlterUserStmt: ALTER USER UserId OptUserList
 850                         { $$ = cat_str(3, make_str("alter user"), $3, $4); }
 851                 | ALTER USER UserId WITH OptUserList
 852                         { $$ = cat_str(4, make_str("alter user"), $3, make_str("with"), $5); }
 853                 ;
 854
 855 AlterUserSetStmt: ALTER USER UserId SET set_rest
 856                         { $$ = cat_str(4, make_str("alter user"), $3, make_str("set"), $5); }
 857                 | ALTER USER UserId VariableResetStmt
 858                         { $$ = cat_str(3, make_str("alter user"), $3, $4); }
 859                 ;
 860
 861 /*****************************************************************************
 862  *
 863  * Drop a postgresql DBMS user
 864  *
 865  *
 866  *****************************************************************************/
 867 DropUserStmt:  DROP USER user_list
 868                         { $$ = cat2_str(make_str("drop user"), $3);}
 869                 ;
 870 /*
 871  * Options for CREATE USER and ALTER USER
 872  */
 873
 874 OptUserList: OptUserList OptUserElem    { $$ = cat2_str($1, $2); }
 875                 | /* EMPTY */                                   { $$ = EMPTY; }
 876                 ;
 877
 878 OptUserElem:  PASSWORD Sconst
 879                 { $$ = cat2_str(make_str("password"), $2); }
 880                 | SYSID PosIntConst
 881                         { $$ = cat2_str(make_str("sysid"), $2); }
 882                 | CREATEDB
 883                         { $$ = make_str("createdb"); }
 884                 | NOCREATEDB
 885                         { $$ = make_str("nocreatedb"); }
 886                 | CREATEUSER
 887                         { $$ = make_str("createuser"); }
 888                 | NOCREATEUSER
 889                         { $$ = make_str("nocreateuser"); }
 890                 | IN_P GROUP_P user_list
 891                         { $$ = cat2_str(make_str("in group"), $3); }
 892                 | VALID UNTIL Sconst
 893                         { $$ = cat2_str(make_str("valid until"), $3); }
 894                 ;
 895
 896 user_list:      user_list ',' UserId
 897                         { $$ = cat_str(3, $1, make_str(","), $3); }
 898                 | UserId
 899                         { $$ = $1; }
 900                 ;
 901
 902 /*****************************************************************************
 903  *
 904  * Create a postgresql group
 905  *
 906  *
 907  ****************************************************************************/
 908 CreateGroupStmt:  CREATE GROUP_P UserId OptGroupList
 909                         { $$ = cat_str(3, make_str("create group"), $3, $4); }
 910                 | CREATE GROUP_P UserId WITH OptGroupList
 911                         { $$ = cat_str(4, make_str("create group"), $3, make_str("with"), $5); }
 912                 ;
 913
 914 /*
 915  * Options for CREATE GROUP
 916  */
 917 OptGroupList: OptGroupList OptGroupElem         { $$ = cat2_str($1, $2); }
 918                 | /* EMPTY */                                           { $$ = EMPTY; }
 919                 ;
 920
 921 OptGroupElem:  USER user_list
 922                         { $$ = cat2_str(make_str("user"), $2); }
 923                 | SYSID PosIntConst
 924                         { $$ = cat2_str(make_str("sysid"), $2); }
 925                 ;
 926
 927
 928 /*****************************************************************************
 929  *
 930  * Alter a postgresql group
 931  *
 932  *
 933  *****************************************************************************/
 934 AlterGroupStmt: ALTER GROUP_P UserId ADD USER user_list
 935                         { $$ = cat_str(4, make_str("alter group"), $3, make_str("add user"), $6); }
 936                 | ALTER GROUP_P UserId DROP USER user_list
 937                         { $$ = cat_str(4, make_str("alter group"), $3, make_str("drop user"), $6); }
 938                 ;
 939
 940 /*****************************************************************************
 941  *
 942  * Drop a postgresql group
 943  *
 944  *
 945  *****************************************************************************/
 946 DropGroupStmt: DROP GROUP_P UserId
 947                         { $$ = cat2_str(make_str("drop group"), $3); }
 948                 ;
 949
 950 /*****************************************************************************
 951  *
 952  * Manipulate a schema
 953  *
 954  *
 955  *****************************************************************************/
 956
 957 CreateSchemaStmt:  CREATE SCHEMA UserId OptSchemaName AUTHORIZATION UserId OptSchemaEltList
 958                         { $$ = cat_str(6, make_str("create scheme"), $3, $4, make_str("authorization"), $6, $7); }
 959                 | CREATE SCHEMA ColId OptSchemaEltList
 960                         { $$ = cat_str(3, make_str("create scheme"), $3, $4); }
 961                 ;
 962
 963 OptSchemaName: ColId            { $$ = $1; }
 964                | /* EMPTY */   { $$ = EMPTY; }
 965                ;
 966
 967 OptSchemaEltList: OptSchemaEltList schema_stmt         { $$ = cat2_str($1, $2); }
 968                 | /* EMPTY */   { $$ = EMPTY; }
 969                 ;
 970
 971 /*
 972  *     schema_stmt are the ones that can show up inside a CREATE SCHEMA
 973  *     statement (in addition to by themselves).
 974  */
 975 schema_stmt: CreateStmt         { $$ = $1; }
 976                | GrantStmt      { $$ = $1; }
 977                | ViewStmt       { $$ = $1; }
 978                ;
 979
 980
 981
 982 /*****************************************************************************
 983  *
 984  * Set PG internal variable
 985  *        SET name TO 'var_value'
 986  * Include SQL92 syntax (thomas 1997-10-22):
 987  *        SET TIME ZONE 'var_value'
 988  *
 989  *****************************************************************************/
 990 VariableSetStmt:  SET set_rest
 991                         { $$ = cat2_str(make_str("set"), $2 ); }
 992                 | SET LOCAL set_rest
 993                         { $$ = cat2_str(make_str("set local"), $3 ); }
 994                 | SET SESSION set_rest
 995                         { $$ = cat2_str(make_str("set session"), $3 ); }
 996                 ;
 997
 998 set_rest:       ColId TO var_list_or_default
 999                         { $$ = cat_str(3, $1, make_str("to"), $3); }
1000                 | ColId "=" var_list_or_default
1001                         { $$ = cat_str(3, $1, make_str("="), $3); }
1002                 | TIME ZONE zone_value
1003                         { $$ = cat2_str(make_str("time zone"), $3); }
1004                 | TRANSACTION transaction_mode_list
1005                         { $$ = cat2_str(make_str("transaction"), $2); }
1006                 | SESSION CHARACTERISTICS AS TRANSACTION transaction_mode_list
1007                         { $$ = cat2_str(make_str("session characteristics as transaction"), $5); }
1008                 | NAMES opt_encoding
1009                         { $$ = cat2_str(make_str("names"), $2); }
1010                 | SESSION AUTHORIZATION ColId_or_Sconst
1011                         { $$ = cat2_str(make_str("session authorization"), $3); }
1012                 | SESSION AUTHORIZATION DEFAULT
1013                         { $$ = make_str("session authorization default"); }
1014                 ;
1015
1016 var_list_or_default:  var_list
1017                         { $$ = $1; }
1018                 | DEFAULT
1019                         { $$ = make_str("default"); }
1020                 ;
1021
1022 var_list:  var_value
1023                         { $$ = $1; }
1024                 | var_list ',' var_value
1025                         { $$ = cat_str(3, $1, make_str(","), $3); }
1026                 ;
1027
1028 iso_level:      READ COMMITTED  { $$ = make_str("read committed"); }
1029                 | SERIALIZABLE          { $$ = make_str("serializable"); }
1030                 ;
1031
1032 var_value:      opt_boolean             { $$ = $1; }
1033                 | AllConst              { $$ = $1; }
1034                 | ColId                 { $$ = $1; }
1035                 ;
1036
1037 opt_boolean:  TRUE_P            { $$ = make_str("true"); }
1038                 | FALSE_P                       { $$ = make_str("false"); }
1039                 | ON                            { $$ = make_str("on"); }
1040                 | OFF                           { $$ = make_str("off"); }
1041                 ;
1042 /* Timezone values can be:
1043  * - a string such as 'pst8pdt'
1044  * - a column identifier such as "pst8pdt"
1045  * - an integer or floating point number
1046  * - a time interval per SQL99
1047  * ConstInterval and ColId give shift/reduce errors,
1048  * so use IDENT and reject anything which is a reserved word.
1049  */
1050 zone_value:  AllConst           { $$ = $1; }
1051                 | ident         { $$ = $1; }
1052                 | ConstInterval StringConst opt_interval
1053                         { $$ = cat_str(3, $1, $2, $3); }
1054                 | ConstInterval '(' PosIntConst ')' StringConst opt_interval
1055                         { $$ = cat_str(6, $1, make_str("("), $3, make_str(")"), $5, $6); }
1056                 | DEFAULT
1057                         { $$ = make_str("default"); }
1058                 | LOCAL
1059                         { $$ = make_str("local"); }
1060                 ;
1061
1062 opt_encoding:   StringConst             { $$ = $1; }
1063                 | DEFAULT                               { $$ = make_str("default"); }
1064                 | /*EMPTY*/                             { $$ = EMPTY; }
1065                 ;
1066
1067 ColId_or_Sconst: ColId                  { $$ = $1; }
1068                 | StringConst                   { $$ = $1; }
1069                 ;
1070
1071 VariableShowStmt:  SHOW ColId
1072                         { $$ = cat2_str(make_str("show"), $2); }
1073                 | SHOW TIME ZONE
1074                         { $$ = make_str("show time zone"); }
1075                 | SHOW TRANSACTION ISOLATION LEVEL
1076                         { $$ = make_str("show transaction isolation level"); }
1077                 | SHOW SESSION AUTHORIZATION
1078                         { $$ = make_str("show session authorization"); }
1079                 | SHOW ALL
1080                         { $$ = make_str("show all"); }
1081                 ;
1082
1083 VariableResetStmt:      RESET ColId
1084                         { $$ = cat2_str(make_str("reset"), $2); }
1085                 | RESET TIME ZONE
1086                         { $$ = make_str("reset time zone"); }
1087                 | RESET TRANSACTION ISOLATION LEVEL
1088                         { $$ = make_str("reset transaction isolation level"); }
1089                 | RESET SESSION AUTHORIZATION
1090                         { $$ = make_str("reset session authorization"); }
1091                 | RESET ALL
1092                         { $$ = make_str("reset all"); }
1093                 ;
1094
1095 ConstraintsSetStmt:    SET CONSTRAINTS constraints_set_list constraints_set_mode
1096                         { $$ = cat_str(3, make_str("set constraints"), $3, $4); }
1097                 ;
1098
1099 constraints_set_list:  ALL
1100                         { $$ = make_str("all"); }
1101                 | name_list
1102                         { $$ = $1; }
1103                 ;
1104
1105 constraints_set_mode:  DEFERRED         { $$ = make_str("deferred"); }
1106                 | IMMEDIATE             { $$ = make_str("immediate"); }
1107                 ;
1108
1109 /*
1110  * Checkpoint statement
1111  */
1112 CheckPointStmt: CHECKPOINT         { $$= make_str("checkpoint"); }
1113                 ;
1114
1115
1116 /*****************************************************************************
1117  *
1118  *      ALTER TABLE variations
1119  *
1120  *****************************************************************************/
1121
1122 AlterTableStmt:
1123 /* ALTER TABLE <relation> ADD [COLUMN] <coldef> */
1124                 ALTER TABLE relation_expr ADD opt_column columnDef
1125                         { $$ = cat_str(5, make_str("alter table"), $3, make_str("add"), $5, $6); }
1126 /* ALTER TABLE <relation> ALTER [COLUMN] <colname> {SET DEFAULT <expr>|DROP DEFAULT} */
1127                 | ALTER TABLE relation_expr ALTER opt_column ColId alter_column_default
1128                         { $$ = cat_str(6, make_str("alter table"), $3, make_str("alter"), $5, $6, $7); }
1129 /* ALTER TABLE <relation> ALTER [COLUMN] <colname> DROP NOT NULL */
1130                 | ALTER TABLE relation_expr ALTER opt_column ColId DROP NOT NULL_P
1131                         { $$ = cat_str(6, make_str("alter table"), $3, make_str("alter"), $5, $6, make_str("drop not null")); }
1132 /* ALTER TABLE <relation> ALTER [COLUMN] <colname> SET NOT NULL */
1133                 | ALTER TABLE relation_expr ALTER opt_column ColId SET NOT NULL_P
1134                         { $$ = cat_str(6, make_str("alter table"), $3, make_str("alter"), $5, $6, make_str("set not null")); }
1135 /* ALTER TABLE <relation> ALTER [COLUMN] <colname> SET STATISTICS <IntegerOnly> */
1136                 | ALTER TABLE relation_expr ALTER opt_column ColId SET STATISTICS PosIntConst
1137                         { $$ = cat_str(7, make_str("alter table"), $3, make_str("alter"), $5, $6, make_str("set statistics"), $9); }
1138 /* ALTER TABLE <relation> ALTER [COLUMN] <colname> SET STORAGE <storagemode> */
1139                 | ALTER TABLE relation_expr ALTER opt_column ColId SET STORAGE ColId
1140                         { $$ = cat_str(7, make_str("alter table"), $3, make_str("alter"), $5, $6, make_str("set storage"), $9); }
1141 /* ALTER TABLE <relation> DROP [COLUMN] <colname> {RESTRICT|CASCADE} */
1142                 | ALTER TABLE relation_expr DROP opt_column ColId opt_drop_behavior
1143                         { $$ = cat_str(6, make_str("alter table"), $3, make_str("drop"), $5, $6, $7); }
1144 /* ALTER TABLE <relation> ADD CONSTRAINT ... */
1145                 | ALTER TABLE relation_expr ADD TableConstraint
1146                         { $$ = cat_str(4, make_str("alter table"), $3, make_str("add"), $5); }
1147 /* ALTER TABLE <relation> DROP CONSTRAINT ... */
1148                 | ALTER TABLE relation_expr DROP CONSTRAINT name opt_drop_behavior
1149                         { $$ = cat_str(5, make_str("alter table"), $3, make_str("drop constraint"), $6, $7); }
1150 /* ALTER TABLE <relation> SET WITHOUT OIDS  */
1151                 | ALTER TABLE relation_expr SET WITHOUT OIDS
1152                         { $$ = cat_str(3, make_str("alter table"), $3, make_str("set without oids")); }
1153  /* ALTER TABLE <name> CREATE TOAST TABLE */
1154                 | ALTER TABLE qualified_name CREATE TOAST TABLE
1155                         { $$ = cat_str(3, make_str("alter table"), $3, make_str("create toast table")); }
1156 /* ALTER TABLE <name> OWNER TO UserId */
1157                 | ALTER TABLE qualified_name OWNER TO UserId
1158                         { $$ = cat_str(4, make_str("alter table"), $3, make_str("owner to"), $6); }
1159 /* ALTER TABLE <name> CLUSTER ON <indexname> */
1160                 | ALTER TABLE qualified_name CLUSTER ON name
1161                         { $$ = cat_str(4, make_str("alter table"), $3, make_str("cluster on"), $6); }
1162                 ;
1163
1164 alter_column_default:
1165                 SET DEFAULT a_expr              { $$ = cat2_str(make_str("set default"), $3); }
1166                 | DROP DEFAULT                  { $$ = make_str("drop default"); }
1167                 ;
1168
1169 opt_drop_behavior: CASCADE                      { $$ = make_str("cascade"); }
1170                 | RESTRICT                      { $$ = make_str("restrict"); }
1171                 | /* EMPTY */                   { $$ = EMPTY; }
1172                 ;
1173
1174 /*****************************************************************************
1175  *
1176  *              QUERY :
1177  *                              close <portalname>
1178  *
1179  *****************************************************************************/
1180
1181 ClosePortalStmt:  CLOSE name
1182                 {
1183                         $$ = cat2_str(make_str("close"), $2);
1184                 }
1185                 ;
1186
1187 /*****************************************************************************
1188  *
1189  *              QUERY :
1190  *                              COPY [BINARY] <relname> FROM/TO
1191  *                              [USING DELIMITERS <delimiter>]
1192  *
1193  *****************************************************************************/
1194
1195 CopyStmt:  COPY opt_binary qualified_name opt_oids copy_from
1196                 copy_file_name copy_delimiter opt_with copy_opt_list
1197                         { $$ = cat_str(9, make_str("copy"), $2, $3, $4, $5, $6, $7, $8, $9); }
1198                 ;
1199
1200 copy_from:      TO                                      { $$ = make_str("to"); }
1201                 | FROM                                  { $$ = make_str("from"); }
1202                 ;
1203
1204 /*
1205  * copy_file_name NULL indicates stdio is used. Whether stdin or stdout is
1206  * used depends on the direction. (It really doesn't make sense to copy from
1207  * stdout. We silently correct the "typo".               - AY 9/94
1208  */
1209 copy_file_name:  StringConst    { $$ = $1; }
1210                 | STDIN                                 { $$ = make_str("stdin"); }
1211                 | STDOUT                                { $$ = make_str("stdout"); }
1212                 ;
1213
1214 copy_opt_list: copy_opt_list copy_opt_item      { $$ = cat2_str($1, $2); }
1215                 | /* EMPTY */                   { $$ = EMPTY; }
1216                 ;
1217
1218 copy_opt_item:  BINARY          { $$ = make_str("binary"); }
1219                 | OIDS          { $$ = make_str("oids"); }
1220                 | DELIMITER opt_as StringConst
1221                         { $$ = cat_str(3, make_str("delimiter"), $2, $3); }
1222                 | NULL_P opt_as StringConst
1223                         { $$ = cat_str(3, make_str("null"), $2, $3); }
1224                 ;
1225
1226 opt_binary:     BINARY          { $$ = make_str("binary"); }
1227                 | /* EMPTY */   { $$ = EMPTY; }
1228                 ;
1229
1230 opt_oids:       WITH OIDS       { $$ = make_str("with oids"); }
1231                 | /* EMPTY */   { $$ = EMPTY; }
1232                 ;
1233
1234
1235 /*
1236  * the default copy delimiter is tab but the user can configure it
1237  */
1238 copy_delimiter:  opt_using DELIMITERS StringConst
1239                         { $$ = cat_str(3, $1, make_str("delimiters"), $3); }
1240                 | /*EMPTY*/
1241                         { $$ = EMPTY; }
1242                 ;
1243
1244 opt_using:      USING           { $$ = make_str("using"); }
1245                 | /* EMPTY */   { $$ = EMPTY; }
1246                 ;
1247
1248 /*****************************************************************************
1249  *
1250  *              QUERY :
1251  *                              CREATE TABLE relname
1252  *
1253  *****************************************************************************/
1254
1255 CreateStmt:  CREATE OptTemp TABLE qualified_name '(' OptTableElementList ')'
1256                                 OptInherit OptWithOids OnCommitOption
1257                         { $$ = cat_str(10, make_str("create"), $2, make_str("table"), $4, make_str("("), $6, make_str(")"), $8, $9, $10); }
1258                 | CREATE OptTemp TABLE qualified_name OF qualified_name
1259                         '(' OptTableElementList ')' OptWithOids OnCommitOption
1260                         { $$ = cat_str(11, make_str("create"), $2, make_str("table"), $4, make_str("of"), $6, make_str("("), $8, make_str(")"), $10, $11); }
1261                 ;
1262
1263 /*
1264  * Redundancy here is needed to avoid shift/reduce conflicts,
1265  * since TEMP is not a reserved word.  See also OptTempTableName.
1266  */
1267
1268 OptTemp: TEMPORARY                      { $$ = make_str("temporary"); }
1269                 | TEMP                  { $$ = make_str("temp"); }
1270                 | LOCAL TEMPORARY       { $$ = make_str("local temporary"); }
1271                 | LOCAL TEMP            { $$ = make_str("local temp"); }
1272                 | GLOBAL TEMPORARY      { $$ = make_str("global temporary"); }
1273                 | GLOBAL TEMP           { $$ = make_str("global temp"); }
1274                 | /*EMPTY*/             { $$ = EMPTY; }
1275                 ;
1276
1277
1278 OptTableElementList:  TableElementList
1279                         { $$ = $1; }
1280                 | /*EMPTY*/
1281                         { $$ = EMPTY; }
1282                 ;
1283 TableElementList: TableElement
1284                         { $$ = $1; }
1285                 | TableElementList ',' TableElement
1286                         { $$ = cat_str(3, $1, make_str(","), $3); }
1287                 ;
1288
1289 TableElement:  columnDef                { $$ = $1; }
1290                 | TableLikeClause       { $$ = $1; }
1291                 | TableConstraint       { $$ = $1; }
1292                 ;
1293
1294 columnDef:      ColId Typename ColQualList opt_collate
1295                 {
1296                         if (strlen($4) > 0)
1297                         {
1298                                 snprintf(errortext, sizeof(errortext), "Currently unsupported CREATE TABLE / COLLATE %s will be passed to backend", $4);
1299                                 mmerror(PARSE_ERROR, ET_WARNING, errortext);
1300                         }
1301                         $$ = cat_str(4, $1, $2, $3, $4);
1302                 }
1303                 ;
1304
1305 ColQualList:  ColQualList ColConstraint { $$ = cat2_str($1,$2); }
1306                 | /*EMPTY*/                                             { $$ = EMPTY; }
1307                 ;
1308
1309 ColConstraint:  CONSTRAINT name ColConstraintElem
1310                         { $$ = cat_str(3, make_str("constraint"), $2, $3); }
1311                 | ColConstraintElem             { $$ = $1; }
1312                 | ConstraintAttr                { $$ = $1; }
1313                 ;
1314
1315 /* DEFAULT NULL is already the default for Postgres.
1316  * But define it here and carry it forward into the system
1317  * to make it explicit.
1318  * - thomas 1998-09-13
1319  *
1320  * WITH NULL and NULL are not SQL92-standard syntax elements,
1321  * so leave them out. Use DEFAULT NULL to explicitly indicate
1322  * that a column may have that value. WITH NULL leads to
1323  * shift/reduce conflicts with WITH TIME ZONE anyway.
1324  * - thomas 1999-01-08
1325  */
1326 ColConstraintElem:      NOT NULL_P
1327                         { $$ = make_str("not null"); }
1328                 | NULL_P
1329                         { $$ = make_str("null"); }
1330                 | UNIQUE
1331                         { $$ = make_str("unique"); }
1332                 | PRIMARY KEY
1333                         { $$ = make_str("primary key"); }
1334                 | CHECK '(' a_expr ')'
1335                         { $$ = cat_str(3, make_str("check ("), $3, make_str(")")); }
1336                 | DEFAULT b_expr
1337                         { $$ = cat2_str(make_str("default"), $2); }
1338                 |  REFERENCES qualified_name opt_column_list key_match key_actions
1339                         { $$ = cat_str(5, make_str("references"), $2, $3, $4, $5); }
1340                 ;
1341
1342 /*
1343  * ConstraintAttr represents constraint attributes, which we parse as if
1344  * they were independent constraint clauses, in order to avoid shift/reduce
1345  * conflicts (since NOT might start either an independent NOT NULL clause
1346  * or an attribute).  analyze.c is responsible for attaching the attribute
1347  * information to the preceding "real" constraint node, and for complaining
1348  * if attribute clauses appear in the wrong place or wrong combinations.
1349  *
1350  * See also ConstraintAttributeSpec, which can be used in places where
1351  * there is no parsing conflict.
1352  */
1353 ConstraintAttr: DEFERRABLE              { $$ = make_str("deferrable"); }
1354                 | NOT DEFERRABLE                { $$ = make_str("not deferrable"); }
1355                 | INITIALLY DEFERRED    { $$ = make_str("initially deferred"); }
1356                 | INITIALLY IMMEDIATE   { $$ = make_str("initially immediate"); }
1357                 ;
1358
1359 TableLikeClause:  LIKE qualified_name like_including_defaults
1360                 {
1361                         $$ = cat_str(3, make_str("like"), $2, $3);
1362                 }
1363                 ;
1364
1365 like_including_defaults:
1366                 INCLUDING DEFAULTS      { $$ = make_str("including defaults"); }
1367               | EXCLUDING DEFAULTS      { $$ = make_str("excluding defaults"); }
1368               | /* EMPTY */             { $$ = EMPTY; }
1369               ;
1370
1371 /* ConstraintElem specifies constraint syntax which is not embedded into
1372  *      a column definition. ColConstraintElem specifies the embedded form.
1373  * - thomas 1997-12-03
1374  */
1375 TableConstraint:  CONSTRAINT name ConstraintElem
1376                         { $$ = cat_str(3, make_str("constraint"), $2, $3); }
1377                 | ConstraintElem
1378                         { $$ = $1; }
1379                 ;
1380
1381 ConstraintElem:  CHECK '(' a_expr ')'
1382                         { $$ = cat_str(3, make_str("check("), $3, make_str(")")); }
1383                 | UNIQUE '(' columnList ')'
1384                         { $$ = cat_str(3, make_str("unique("), $3, make_str(")")); }
1385                 | PRIMARY KEY '(' columnList ')'
1386                         { $$ = cat_str(3, make_str("primary key("), $4, make_str(")")); }
1387                 | FOREIGN KEY '(' columnList ')' REFERENCES qualified_name opt_column_list
1388                         key_match key_actions ConstraintAttributeSpec
1389                         { $$ = cat_str(8, make_str("foreign key("), $4, make_str(") references"), $7, $8, $9, $10, $11); }
1390                 ;
1391
1392 opt_column_list:  '(' columnList ')'    { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
1393                | /*EMPTY*/              { $$ = EMPTY; }
1394                ;
1395
1396 columnList:  columnList ',' columnElem
1397                                { $$ = cat_str(3, $1, make_str(","), $3); }
1398                | columnElem
1399                                { $$ = $1; }
1400                ;
1401
1402 columnElem:  ColId      { $$ = $1; }
1403                 ;
1404
1405 key_match:      MATCH FULL
1406                         { $$ = make_str("match full"); }
1407                 | MATCH PARTIAL
1408                 {
1409                         mmerror(PARSE_ERROR, ET_WARNING, "Currently unsupported FOREIGN KEY/MATCH PARTIAL will be passed to backend");
1410                         $$ = make_str("match partial");
1411                 }
1412                 | /*EMPTY*/
1413                         { $$ = EMPTY; }
1414                 ;
1415
1416 key_actions:  key_delete                        { $$ = $1; }
1417                 | key_update                            { $$ = $1; }
1418                 | key_delete key_update         { $$ = cat2_str($1, $2); }
1419                 | key_update key_delete         { $$ = cat2_str($1, $2); }
1420                 | /*EMPTY*/                                     { $$ = EMPTY; }
1421                 ;
1422
1423 key_delete: ON DELETE_P key_action
1424                         { $$ = cat2_str(make_str("on delete"), $3); }
1425                 ;
1426
1427 key_update: ON UPDATE key_action
1428                         { $$ = cat2_str(make_str("on update"), $3); }
1429                 ;
1430
1431 key_action:     NO ACTION                       { $$ = make_str("no action"); }
1432                 | RESTRICT                                      { $$ = make_str("restrict"); }
1433                 | CASCADE                                       { $$ = make_str("cascade"); }
1434                 | SET DEFAULT                           { $$ = make_str("set default"); }
1435                 | SET NULL_P                            { $$ = make_str("set null"); }
1436                 ;
1437
1438 OptInherit:  INHERITS '(' qualified_name_list ')'
1439                         { $$ = cat_str(3, make_str("inherits ("), $3, make_str(")")); }
1440                 | /*EMPTY*/
1441                         { $$ = EMPTY; }
1442                 ;
1443
1444 OptWithOids:  WITH OIDS                         { $$ = make_str("with oids"); }
1445                 | WITHOUT OIDS                          { $$ = make_str("without oids"); }
1446                 | /*EMPTY*/                                     { $$ = EMPTY; }
1447                 ;
1448
1449 OnCommitOption:   ON COMMIT DROP                { $$ = make_str("on commit drop"); }
1450                 | ON COMMIT DELETE_P ROWS       { $$ = make_str("on commit delete rows"); }
1451                 | ON COMMIT PRESERVE ROWS       { $$ = make_str("on commit preserve rows"); }
1452                 | /*EMPTY*/                     { $$ = EMPTY; }
1453                 ;
1454
1455
1456 /*
1457  * Note: CREATE TABLE ... AS SELECT ... is just another spelling for
1458  * SELECT ... INTO.
1459  */
1460
1461 CreateAsStmt:  CREATE OptTemp TABLE qualified_name OptCreateAs AS
1462                 { FoundInto = 0; }
1463                 SelectStmt
1464                 {
1465                         if (FoundInto == 1)
1466                                 mmerror(PARSE_ERROR, ET_ERROR, "CREATE TABLE / AS SELECT may not specify INTO");
1467
1468                         $$ = cat_str(7, make_str("create"), $2, make_str("table"), $4, $5, make_str("as"), $8);
1469                 }
1470                 ;
1471
1472 OptCreateAs:  '(' CreateAsList ')'
1473                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
1474                 | /*EMPTY*/
1475                         { $$ = EMPTY; }
1476                 ;
1477
1478 CreateAsList:  CreateAsList ',' CreateAsElement
1479                         { $$ = cat_str(3, $1, make_str(","), $3); }
1480                 | CreateAsElement
1481                         { $$ = $1; }
1482                 ;
1483
1484 CreateAsElement:  ColId { $$ = $1; }
1485                 ;
1486
1487 /*****************************************************************************
1488  *
1489  *              QUERY :
1490  *                              CREATE SEQUENCE seqname
1491  *                              ALTER SEQUENCE seqname
1492  *
1493  *****************************************************************************/
1494
1495 CreateSeqStmt:  CREATE OptTemp SEQUENCE qualified_name OptSeqList
1496                         { $$ = cat_str(4, make_str("create sequence"), $2, $4, $5); }
1497                 ;
1498
1499 AlterSeqStmt: ALTER SEQUENCE qualified_name OptSeqList
1500                         { $$ = cat_str(3,make_str("alter sequence"), $3, $4); }
1501                 ;
1502
1503 OptSeqList:  OptSeqList OptSeqElem      { $$ = cat2_str($1, $2); }
1504                 | /*EMPTY*/                                     { $$ = EMPTY; }
1505                 ;
1506
1507 OptSeqElem:  CACHE NumConst
1508                         { $$ = cat2_str(make_str("cache"), $2); }
1509                 | CYCLE
1510                         { $$ = make_str("cycle"); }
1511                 | NO CYCLE
1512                         { $$ = make_str("no cycle"); }
1513                 | INCREMENT opt_by NumConst
1514                         { $$ = cat_str(3, make_str("increment"), $2, $3); }
1515                 | MAXVALUE NumConst
1516                         { $$ = cat2_str(make_str("maxvalue"), $2); }
1517                 | MINVALUE NumConst
1518                         { $$ = cat2_str(make_str("minvalue"), $2); }
1519                 | NO MAXVALUE
1520                         { $$ = make_str("no maxvalue"); }
1521                 | NO MINVALUE
1522                         { $$ = make_str("no minvalue"); }
1523                 | START opt_with NumConst
1524                         { $$ = cat_str(3, make_str("start"), $2, $3); }
1525                 | RESTART opt_with NumConst
1526                         { $$ = cat_str(3, make_str("restart"), $2, $3); }
1527                 ;
1528
1529 opt_by:         BY      { $$ = make_str("by"); }
1530                 | /*EMPTY*/     { $$ = EMPTY; }
1531                 ;
1532
1533 /*****************************************************************************
1534  *
1535  *              QUERIES :
1536  *                              CREATE PROCEDURAL LANGUAGE ...
1537  *                              DROP PROCEDURAL LANGUAGE ...
1538  *
1539  *****************************************************************************/
1540
1541 CreatePLangStmt:  CREATE opt_Trusted opt_procedural LANGUAGE ColId_or_Sconst
1542                         HANDLER handler_name opt_lancompiler
1543                         { $$ = cat_str(8, make_str("create"), $2, $3, make_str("language"), $5, make_str("handler"), $7, $8); }
1544                 ;
1545
1546 opt_Trusted:    TRUSTED { $$ = make_str("trusted"); }
1547                 | /*EMPTY*/             { $$ = EMPTY; }
1548                 ;
1549
1550 /* This ought to be just func_name, but that causes reduce/reduce conflicts
1551  * (CREATE LANGUAGE is the only place where func_name isn't followed by '(').
1552  * Work around by using name and dotted_name separately.
1553  */
1554 handler_name: name
1555                                { $$ = $1; }
1556         | dotted_name
1557                                { $$ = $1; /* XXX changing soon */ }
1558                ;
1559
1560 opt_lancompiler: LANCOMPILER StringConst
1561                         { $$ = cat2_str(make_str("lancompiler"), $2); }
1562                 | /*EMPTY*/
1563                         { $$ = ""; }
1564                 ;
1565
1566 DropPLangStmt:  DROP opt_procedural LANGUAGE StringConst opt_drop_behavior
1567                         { $$ = cat_str(5, make_str("drop"), $2, make_str("language"), $4, $5); }
1568                 ;
1569
1570 opt_procedural: PROCEDURAL      { $$ = make_str("prcedural"); }
1571                 | /*EMPTY*/                     { $$ = EMPTY; }
1572                 ;
1573
1574 /*****************************************************************************
1575  *
1576  *              QUERIES :
1577  *                              CREATE TRIGGER ...
1578  *                              DROP TRIGGER ...
1579  *
1580  *****************************************************************************/
1581
1582 CreateTrigStmt:  CREATE TRIGGER name TriggerActionTime TriggerEvents ON
1583                                 qualified_name TriggerForSpec
1584                                 EXECUTE PROCEDURE
1585                                 name '(' TriggerFuncArgs ')'
1586                         { $$ = cat_str(12, make_str("create trigger"), $3, $4, $5, make_str("on"), $7, $8, make_str("execute procedure"), $11, make_str("("), $13, make_str(")")); }
1587                 |       CREATE CONSTRAINT TRIGGER name AFTER TriggerEvents ON
1588                                 qualified_name OptConstrFromTable
1589                                 ConstraintAttributeSpec
1590                                 FOR EACH ROW EXECUTE PROCEDURE
1591                                 func_name '(' TriggerFuncArgs ')'
1592                         { $$ = cat_str(13, make_str("create constraint trigger"), $4, make_str("after"), $6, make_str("on"), $8, $9, $10, make_str("for each row execute procedure"), $16, make_str("("), $18, make_str(")")); }
1593                 ;
1594
1595 TriggerActionTime:      BEFORE          { $$ = make_str("before"); }
1596                 | AFTER                                 { $$ = make_str("after"); }
1597                 ;
1598
1599 TriggerEvents:  TriggerOneEvent
1600                         { $$ = $1; }
1601                 | TriggerOneEvent OR TriggerOneEvent
1602                         { $$ = cat_str(3, $1, make_str("or"), $3); }
1603                 | TriggerOneEvent OR TriggerOneEvent OR TriggerOneEvent
1604                         { $$ = cat_str(5, $1, make_str("or"), $3, make_str("or"), $5); }
1605                 ;
1606
1607 TriggerOneEvent:  INSERT        { $$ = make_str("insert"); }
1608                 | DELETE_P                      { $$ = make_str("delete"); }
1609                 | UPDATE                        { $$ = make_str("update"); }
1610                 ;
1611
1612 TriggerForSpec:  FOR TriggerForOpt TriggerForType
1613                         { $$ = cat_str(3, make_str("for"), $2, $3); }
1614                 | /* EMPTY */
1615                         { $$ = EMPTY; }
1616                 ;
1617
1618 TriggerForOpt:  EACH            { $$ = make_str("each"); }
1619                 | /*EMPTY*/                     { $$ = EMPTY; }
1620                 ;
1621
1622 TriggerForType:  ROW            { $$ = make_str("row"); }
1623                 | STATEMENT                     { $$ = make_str("statement"); }
1624                 ;
1625
1626 TriggerFuncArgs:  TriggerFuncArg
1627                         { $$ = $1; }
1628                 | TriggerFuncArgs ',' TriggerFuncArg
1629                         { $$ = cat_str(3, $1, make_str(","), $3); }
1630                 | /*EMPTY*/
1631                         { $$ = EMPTY; }
1632                 ;
1633
1634 TriggerFuncArg:  PosAllConst    { $$ = $1; }
1635                 | ColId         { $$ = $1; }
1636                 ;
1637
1638 OptConstrFromTable: /* Empty */         { $$ = EMPTY; }
1639                 | FROM qualified_name   { $$ = cat2_str(make_str("from"), $2); }
1640                 ;
1641
1642 ConstraintAttributeSpec: ConstraintDeferrabilitySpec    { $$ = $1; }
1643                 | ConstraintDeferrabilitySpec ConstraintTimeSpec
1644                 {
1645                         if (strcmp($1, "deferrable") != 0 && strcmp($2, "initially deferrable") == 0 )
1646                                 mmerror(PARSE_ERROR, ET_ERROR, "INITIALLY DEFERRED constraint must be DEFERRABLE");
1647
1648                         $$ = cat2_str($1, $2);
1649                 }
1650                 | ConstraintTimeSpec            { $$ = $1; }
1651                 | ConstraintTimeSpec ConstraintDeferrabilitySpec
1652                 {
1653                         if (strcmp($2, "deferrable") != 0 && strcmp($1, "initially deferrable") == 0 )
1654                                 mmerror(PARSE_ERROR, ET_ERROR, "INITIALLY DEFERRED constraint must be DEFERRABLE");
1655
1656                         $$ = cat2_str($1, $2);
1657                 }
1658                 ;
1659
1660 ConstraintDeferrabilitySpec: NOT DEFERRABLE
1661                         { $$ = make_str("not deferrable"); }
1662                 | DEFERRABLE
1663                         { $$ = make_str("deferrable"); }
1664                 ;
1665
1666 ConstraintTimeSpec: INITIALLY IMMEDIATE
1667                         { $$ = make_str("initially immediate"); }
1668                 | INITIALLY DEFERRED
1669                         { $$ = make_str("initially deferred"); }
1670                 ;
1671
1672 DropTrigStmt:  DROP TRIGGER name ON qualified_name opt_drop_behavior
1673                         { $$ = cat_str(5, make_str("drop trigger"), $3, make_str("on"), $5, $6); }
1674                 ;
1675
1676 /*****************************************************************************
1677  *
1678  *             QUERIES :
1679  *                             CREATE ASSERTION ...
1680  *                             DROP ASSERTION ...
1681  *
1682  *****************************************************************************/
1683 CreateAssertStmt:  CREATE ASSERTION name
1684                        CHECK '(' a_expr ')' ConstraintAttributeSpec
1685                         {
1686                                 mmerror(PARSE_ERROR, ET_ERROR, "CREATE ASSERTION is not yet supported");
1687                                 $$ = cat_str(6, make_str("create assertion"), $3, make_str("check ("), $6, make_str(")"), $8);
1688                         }
1689                 ;
1690
1691 DropAssertStmt:  DROP ASSERTION name
1692         {
1693                 mmerror(PARSE_ERROR, ET_ERROR, "DROP ASSERTION is not yet supported");
1694                 $$ = cat2_str(make_str("drop assertion"), $3);
1695         }
1696         ;
1697
1698
1699 /*****************************************************************************
1700  *
1701  *              QUERY :
1702  *                              define (type,operator,aggregate)
1703  *
1704  *****************************************************************************/
1705
1706 DefineStmt:  CREATE AGGREGATE func_name definition
1707                         { $$ = cat_str(3, make_str("create aggregate"), $3, $4); }
1708                 | CREATE OPERATOR all_Op definition
1709                         { $$ = cat_str(3, make_str("create operator"), $3, $4); }
1710                 | CREATE TYPE_P any_name definition
1711                         { $$ = cat_str(3, make_str("create type"), $3, $4); }
1712                 | CREATE TYPE_P any_name AS rowdefinition
1713                         { $$ = cat_str(4, make_str("create type"), $3, make_str("as"), $5); }
1714                 ;
1715
1716 rowdefinition: '(' TableFuncElementList ')'
1717                         { $$ = cat_str(3, make_str("("), $2, make_str(")"));}
1718                 ;
1719
1720 definition:  '(' def_list ')'
1721                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
1722                 ;
1723
1724 def_list:  def_elem                                     { $$ = $1; }
1725                 | def_list ',' def_elem         { $$ = cat_str(3, $1, make_str(","), $3); }
1726                 ;
1727
1728 def_elem:  ColLabel '=' def_arg         { $$ = cat_str(3, $1, make_str("="), $3); }
1729                 | ColLabel                                      { $$ = $1; }
1730                 ;
1731
1732 /* Note: any simple identifier will be returned as a type name! */
1733 def_arg:  func_return                           {  $$ = $1; }
1734                 | qual_all_Op                                   {  $$ = $1; }
1735                 | AllConst                                      {  $$ = $1; }
1736                 ;
1737
1738 CreateOpClassStmt:      CREATE OPERATOR CLASS any_name opt_default FOR TYPE_P Typename
1739                         USING access_method AS opclass_item_list
1740                                 {
1741                                         $$ = cat_str(9, make_str("create operator class"), $4, $5, make_str("for type"), $8, make_str("using"), $10, make_str("as"), $12);
1742                                 }
1743                                 ;
1744
1745 opclass_item_list:      opclass_item            { $$ = $1; }
1746                         | opclass_item_list ',' opclass_item    { $$ = cat_str(3, $1, make_str(","), $3); }
1747                         ;
1748
1749 opclass_item:   OPERATOR PosIntConst any_operator opt_recheck
1750                         { $$ = cat_str(4, make_str("operator"), $2, $3, $4); }
1751                 | OPERATOR PosIntConst any_operator '(' oper_argtypes ')' opt_recheck
1752                         { $$ =  cat_str(7, make_str("operator"), $2, $3, make_str("("), $5, make_str(")"), $7); }
1753                 | FUNCTION PosIntConst func_name func_args
1754                         { $$ = cat_str(4, make_str("function"), $2, $3, $4); }
1755                 | STORAGE Typename
1756                         { $$ = cat2_str(make_str("storage"), $2); }
1757                 ;
1758
1759 opt_default:   DEFAULT  { $$ = make_str("default"); }
1760         |  /*EMPTY*/    { $$ = EMPTY; }
1761         ;
1762
1763 opt_recheck:   RECHECK  { $$ = make_str("recheck"); }
1764         |  /*EMPTY*/    { $$ = EMPTY; }
1765         ;
1766
1767 DropOpClassStmt: DROP OPERATOR CLASS any_name USING access_method opt_drop_behavior
1768                         { $$ = cat_str(5,make_str("drop operator class"), $4, make_str("using"), $6, $7); }
1769                 ;
1770
1771 /*****************************************************************************
1772  *
1773  *              QUERY:
1774  *
1775  *                         DROP itemtype itemname [, itemname ...]
1776  *
1777  *****************************************************************************/
1778
1779 DropStmt:  DROP drop_type any_name_list opt_drop_behavior
1780                         { $$ = cat_str(4, make_str("drop"), $2, $3, $4); }
1781                 ;
1782
1783 drop_type:      TABLE                   { $$ = make_str("table"); }
1784                 | SEQUENCE              { $$ = make_str("sequence"); }
1785                 | VIEW                  { $$ = make_str("view"); }
1786                 | INDEX                 { $$ = make_str("index"); }
1787                 | TYPE_P                { $$ = make_str("type"); }
1788                 | DOMAIN_P              { $$ = make_str("domain"); }
1789                 | CONVERSION_P          { $$ = make_str("conversion"); }
1790                 | SCHEMA                { $$ = make_str("schema"); }
1791                 ;
1792
1793 any_name_list:  any_name
1794                        { $$ = $1; }
1795                | any_name_list ',' any_name
1796                        { $$ = cat_str(3, $1, make_str(","), $3); }
1797                ;
1798
1799 any_name: ColId
1800                        { $$ = $1; }
1801                | dotted_name
1802                        { $$ = $1; }
1803                 ;
1804 /*****************************************************************************
1805  *
1806  *                         QUERY:
1807  *                                                         truncate table relname
1808  *
1809  *****************************************************************************/
1810 TruncateStmt:  TRUNCATE opt_table qualified_name
1811                         { $$ = cat_str(3, make_str("truncate table"), $2, $3); }
1812                 ;
1813
1814 /*****************************************************************************
1815  *
1816  *              QUERY:
1817  *                      fetch/move
1818  *
1819  *****************************************************************************/
1820
1821 FetchStmt: FETCH fetch_direction from_in name ecpg_into_using
1822                         { $$ = cat_str(4, make_str("fetch"), $2, $3, $4); }
1823                 | FETCH name ecpg_into_using
1824                         { $$ = cat2_str(make_str("fetch"), $2); }
1825                 | FETCH fetch_direction from_in name
1826                         { $$ = cat_str(4, make_str("fetch"), $2, $3, $4); }
1827                 | FETCH name
1828                         { $$ = cat2_str(make_str("fetch"), $2); }
1829                 | MOVE fetch_direction from_in name
1830                         { $$ = cat_str(4, make_str("move"), $2, $3, $4); }
1831                 | MOVE name
1832                         { $$ = cat2_str(make_str("move"), $2); }
1833                 ;
1834
1835 fetch_direction: /* EMPTY */                    { $$ = EMPTY; }
1836                 | NEXT                          { $$ = make_str("next"); }
1837                 | PRIOR                         { $$ = make_str("prior"); }
1838                 | FIRST_P                       { $$ = make_str("first"); }
1839                 | LAST_P                        { $$ = make_str("last"); }
1840                 | ABSOLUTE_P fetch_count        { $$ = cat2_str(make_str("absolute"), $2); }
1841                 | RELATIVE_P fetch_count        { $$ = cat2_str(make_str("relative"), $2); }
1842                 | fetch_count                   { $$ = $1; }
1843                 | ALL                           { $$ = make_str("all"); }
1844                 | FORWARD                       { $$ = make_str("forward"); }
1845                 | FORWARD fetch_count           { $$ = cat2_str(make_str("forward"), $2); }
1846                 | FORWARD ALL                   { $$ = make_str("forward all"); }
1847                 | BACKWARD                      { $$ = make_str("backward"); }
1848                 | BACKWARD fetch_count          { $$ = cat2_str(make_str("backward"), $2); }
1849                 | BACKWARD ALL                  { $$ = make_str("backward all"); }
1850                 ;
1851
1852 fetch_count: IntConst   { $$ = $1; }
1853         ;
1854
1855 from_in: IN_P                           { $$ = make_str("in"); }
1856                 | FROM                          { $$ = make_str("from"); }
1857                 ;
1858
1859 /*****************************************************************************
1860  *
1861  *      The COMMENT ON statement can take different forms based upon the type of
1862  *      the object associated with the comment. The form of the statement is:
1863  *
1864  *      COMMENT ON [ [ DATABASE | DOMAIN | INDEX |  SEQUENCE | TABLE | TYPE | VIEW ]
1865  *                               <objname> | AGGREGATE <aggname> (<aggtype>) | FUNCTION
1866  *                              <funcname> (arg1, arg2, ...) | OPERATOR <op>
1867  *                              (leftoperand_typ rightoperand_typ) | TRIGGER <triggername> ON
1868  *                              <relname> | RULE <rulename> ON <relname> ] IS 'text'
1869  *
1870  *****************************************************************************/
1871 CommentStmt:   COMMENT ON comment_type name IS comment_text
1872                         { $$ = cat_str(5, make_str("comment on"), $3, $4, make_str("is"), $6); }
1873                 | COMMENT ON AGGREGATE func_name '(' aggr_argtype ')' IS comment_text
1874                         { $$ = cat_str(6, make_str("comment on aggregate"), $4, make_str("("), $6, make_str(") is"), $9); }
1875                 | COMMENT ON FUNCTION func_name func_args IS comment_text
1876                         { $$ = cat_str(5, make_str("comment on function"), $4, $5, make_str("is"), $7); }
1877                 | COMMENT ON OPERATOR all_Op '(' oper_argtypes ')' IS comment_text
1878                         { $$ = cat_str(6, make_str("comment on operator"), $4, make_str("("), $6, make_str(") is"), $9); }
1879                 | COMMENT ON TRIGGER name ON any_name IS comment_text
1880                         { $$ = cat_str(6, make_str("comment on trigger"), $4, make_str("on"), $6, make_str("is"), $8); }
1881                 | COMMENT ON RULE name ON any_name IS comment_text
1882                         { $$ = cat_str(6, make_str("comment on rule"), $4, make_str("on"), $6, make_str("is"), $8); }
1883                 | COMMENT ON RULE name IS comment_text
1884                         { $$ = cat_str(4, make_str("comment on rule"), $4, make_str("is"), $6); }
1885                 ;
1886
1887 comment_type:  COLUMN           { $$ = make_str("column"); }
1888                 | DATABASE      { $$ = make_str("database"); }
1889                 | SCHEMA        { $$ = make_str("schema"); }
1890                 | INDEX         { $$ = make_str("idnex"); }
1891                 | SEQUENCE      { $$ = make_str("sequence"); }
1892                 | TABLE         { $$ = make_str("table"); }
1893                 | DOMAIN_P      { $$ = make_str("domain"); }
1894                 | TYPE_P        { $$ = make_str("type"); }
1895                 | VIEW          { $$ = make_str("view"); }
1896                 ;
1897
1898 comment_text:   StringConst { $$ = $1; }
1899                 | NULL_P                        { $$ = make_str("null"); }
1900                 ;
1901
1902 /*****************************************************************************
1903  *
1904  *              QUERY:
1905  * GRANT and REVOKE statements
1906  *
1907  *****************************************************************************/
1908
1909 GrantStmt:      GRANT privileges ON privilege_target TO grantee_list opt_grant_grant_option
1910                         { $$ = cat_str(7, make_str("grant"), $2, make_str("on"), $4, make_str("to"), $6, $7); }
1911                 ;
1912
1913 RevokeStmt:  REVOKE opt_revoke_grant_option privileges ON privilege_target FROM grantee_list opt_drop_behavior
1914                         {
1915                           $$ = cat_str(9, make_str("revoke"), $2, $3, make_str("on"), $5, make_str("from"), $7, $8);
1916                         }
1917
1918                 ;
1919
1920 privileges:  ALL PRIVILEGES             { $$ = make_str("all privileges"); }
1921                 | ALL                                   { $$ = make_str("all"); }
1922                 | privilege_list                { $$ = $1; }
1923                 ;
1924
1925 privilege_list:  privilege
1926                         { $$ = $1; }
1927                 | privilege_list ',' privilege
1928                         { $$ = cat_str(3, $1, make_str(","), $3); }
1929                 ;
1930
1931 privilege:      SELECT                  { $$ = make_str("select"); }
1932                 | INSERT                        { $$ = make_str("insert"); }
1933                 | UPDATE                        { $$ = make_str("update"); }
1934                 | DELETE_P                      { $$ = make_str("delete"); }
1935                 | RULE                          { $$ = make_str("rule"); }
1936                 | REFERENCES            { $$ = make_str("references"); }
1937                 | TRIGGER                       { $$ = make_str("trigger"); }
1938                 | EXECUTE                       { $$ = make_str("execute"); }
1939                 | USAGE                         { $$ = make_str("usage"); }
1940                 | CREATE                        { $$ = make_str("create"); }
1941                 | TEMPORARY                     { $$ = make_str("temporary"); }
1942                 | TEMP                          { $$ = make_str("temp"); }
1943                 ;
1944
1945 privilege_target: qualified_name_list
1946                         { $$ = $1; }
1947                 | TABLE qualified_name_list
1948                         { $$ = cat2_str(make_str("table"), $2); }
1949                 | FUNCTION function_with_argtypes_list
1950                         { $$ = cat2_str(make_str("function"), $2); }
1951                 | DATABASE name_list
1952                         { $$ = cat2_str(make_str("database"), $2); }
1953                 | LANGUAGE name_list
1954                         { $$ = cat2_str(make_str("language") , $2); }
1955                 | SCHEMA name_list
1956                         { $$ = cat2_str(make_str("schema") , $2); }
1957                 ;
1958
1959 grantee_list: grantee
1960                         { $$ = $1; }
1961                 | grantee_list ',' grantee
1962                         { $$ = cat_str(3, $1, make_str(","), $3); }
1963                 ;
1964
1965 grantee:  ColId                 { $$ = $1; }
1966                 | GROUP_P ColId         { $$ = cat2_str(make_str("group"), $2); }
1967                 ;
1968
1969 opt_grant_grant_option:  WITH GRANT OPTION
1970                 {
1971                         mmerror(PARSE_ERROR, ET_WARNING, "Currently unsupported GRANT/WITH GRANT OPTION will be passed to backend");
1972                         $$ = make_str("with grant option");
1973                 }
1974                 | /*EMPTY*/     { $$ = EMPTY; }
1975                 ;
1976
1977 opt_revoke_grant_option: GRANT OPTION FOR
1978                 {
1979                         mmerror(PARSE_ERROR, ET_WARNING, "Currently unsupported REVOKE/GRANT OPTION FOR will be passed to backend");
1980                         $$ = make_str("with grant option");
1981                 }
1982                 | /*EMPTY*/     { $$ = EMPTY; }
1983                 ;
1984
1985 function_with_argtypes_list: function_with_argtypes
1986                         { $$ = $1; }
1987                 | function_with_argtypes_list ',' function_with_argtypes
1988                         { $$ = cat_str(3, $1, make_str(","), $3); }
1989                 ;
1990
1991 function_with_argtypes: func_name func_args { $$ = cat2_str($1, $2); };
1992
1993 /*****************************************************************************
1994  *
1995  *              QUERY:
1996  *                              create index <indexname> on <relname>
1997  *                                [ using <access> ] "(" ( <col> | using <opclass> ] )+ ")"
1998  *                                [ where <predicate> ]
1999  *
2000  *****************************************************************************/
2001
2002 IndexStmt:      CREATE index_opt_unique INDEX index_name ON qualified_name
2003                                 access_method_clause '(' index_params ')' where_clause
2004                         { $$ = cat_str(11, make_str("create"), $2, make_str("index"), $4, make_str("on"), $6, $7, make_str("("), $9, make_str(")"), $11); }
2005                 ;
2006
2007 index_opt_unique:  UNIQUE       { $$ = make_str("unique"); }
2008                 | /*EMPTY*/             { $$ = EMPTY; }
2009                 ;
2010
2011 access_method_clause:  USING access_method
2012                         { $$ = cat2_str(make_str("using"), $2); }
2013                 | /*EMPTY*/
2014                         { $$ = EMPTY; }
2015                 ;
2016
2017 index_params:  index_elem                       { $$ = $1; }
2018                 | index_params ',' index_elem   { $$ = $1; }
2019                 ;
2020
2021 index_elem:  attr_name opt_class
2022                 { $$ = cat2_str($1, $2); }
2023         | func_name '(' expr_list ')' opt_class
2024                 { $$ = cat_str(5, $1, make_str("("), $3, ")", $5); }
2025         | '(' a_expr ')' opt_class
2026                 { $$ = cat_str(4, make_str("("), $2, make_str(")"), $4); }
2027         ;
2028
2029 opt_class:      any_name        { $$ = $1; }
2030                 | USING any_name        { $$ = cat2_str(make_str("using"), $2); }
2031                 | /*EMPTY*/             { $$ = EMPTY; }
2032                 ;
2033
2034 CreateFunctionStmt:     CREATE opt_or_replace FUNCTION func_name func_args
2035                                         RETURNS func_return createfunc_opt_list opt_definition
2036                         { $$ = cat_str(8, make_str("create"), $2, make_str("function"), $4, $5, make_str("returns"), $7, $8); }
2037                 ;
2038
2039 opt_or_replace:  OR REPLACE             { $$ = make_str("or replace"); }
2040                 | /*EMPTY*/                             { $$ = EMPTY; }
2041                 ;
2042
2043 func_args:      '(' func_args_list ')'
2044                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2045                 | '(' ')'
2046                         { $$ = make_str("()"); }
2047                 ;
2048
2049 func_args_list:  func_arg
2050                         { $$ = $1; }
2051                 | func_args_list ',' func_arg
2052                         { $$ = cat_str(3, $1, make_str(","), $3); }
2053                 ;
2054
2055 func_arg:  opt_arg func_type
2056                 {
2057                         /* We can catch over-specified arguments here if we want to,
2058                          * but for now better to silently swallow typmod, etc.
2059                          * - thomas 2000-03-22
2060                          */
2061                         $$ = cat2_str($1, $2);
2062                 }
2063                 | func_type             { $$ = $1; }
2064                 ;
2065
2066 opt_arg:  IN_P  { $$ = make_str("in"); }
2067                 | OUT_P
2068                 {
2069                         mmerror(PARSE_ERROR, ET_WARNING, "Currently unsupported CREATE FUNCTION/OUT will be passed to backend");
2070
2071                         $$ = make_str("out");
2072                 }
2073                 | INOUT
2074                 {
2075                         mmerror(PARSE_ERROR, ET_WARNING, "Currently unsupported CREATE FUNCTION/INOUT will be passed to backend");
2076
2077                         $$ = make_str("inout");
2078                 }
2079                 ;
2080
2081 func_as: StringConst
2082                         { $$ = $1; }
2083                 | StringConst ',' StringConst
2084                         { $$ = cat_str(3, $1, make_str(","), $3); }
2085                 ;
2086
2087 func_return:  func_type
2088                 {
2089                         /* We can catch over-specified arguments here if we want to,
2090                          * but for now better to silently swallow typmod, etc.
2091                          * - thomas 2000-03-22
2092                          */
2093                         $$ = $1;
2094                 }
2095                 ;
2096
2097 func_type:      Typename
2098                         { $$ = $1; }
2099                 | type_name attrs '%' TYPE_P
2100                         { $$ = cat_str(3, $1, $2, make_str("% type")); }
2101                 ;
2102
2103
2104 createfunc_opt_list: createfunc_opt_item
2105                         { $$ = $1; }
2106                 | createfunc_opt_list createfunc_opt_item
2107                         { $$ = cat2_str($1, $2); }
2108                 ;
2109
2110 createfunc_opt_item: AS func_as
2111                                 { $$ = cat2_str(make_str("as"), $2); }
2112                 | LANGUAGE ColId_or_Sconst
2113                                 { $$ = cat2_str(make_str("language"), $2); }
2114                 | IMMUTABLE
2115                                 { $$ = make_str("immutable"); }
2116                 | STABLE
2117                                 { $$ = make_str("stable"); }
2118                 | VOLATILE
2119                                 { $$ = make_str("volatile"); }
2120                 | CALLED ON NULL_P INPUT_P
2121                                 { $$ = make_str("called on null input"); }
2122                 | RETURNS NULL_P ON NULL_P INPUT_P
2123                                 { $$ = make_str("returns null on null input"); }
2124                 | STRICT_P
2125                                 { $$ = make_str("strict"); }
2126                 | EXTERNAL SECURITY DEFINER
2127                                 { $$ = make_str("external security definer"); }
2128                 | EXTERNAL SECURITY INVOKER
2129                                 { $$ = make_str("external security invoker"); }
2130                 | SECURITY DEFINER
2131                                 { $$ = make_str("security definer"); }
2132                 | SECURITY INVOKER
2133                                 { $$ = make_str("security invoker"); }
2134                 ;
2135
2136 opt_definition: WITH definition { $$ = cat2_str(make_str("with"), $2); }
2137                 | /*EMPTY*/     { $$ = EMPTY; }
2138                 ;
2139
2140 /*****************************************************************************
2141  *
2142  *              QUERY:
2143  *
2144  *                         DROP FUNCTION funcname (arg1, arg2, ...)
2145  *                         DROP AGGREGATE aggname (aggtype)
2146  *                         DROP OPERATOR opname (leftoperand_typ rightoperand_typ)
2147  *
2148  *****************************************************************************/
2149
2150 RemoveFuncStmt:  DROP FUNCTION func_name func_args opt_drop_behavior
2151                         { $$ = cat_str(4, make_str("drop function"), $3, $4, $5); }
2152                 ;
2153
2154 RemoveAggrStmt:  DROP AGGREGATE func_name '(' aggr_argtype ')' opt_drop_behavior
2155                         { $$ = cat_str(6, make_str("drop aggregate"), $3, make_str("("), $5, make_str(")"), $7); }
2156                 ;
2157
2158 aggr_argtype:  Typename         { $$ = $1; }
2159                 | '*'                           { $$ = make_str("*"); }
2160                 ;
2161
2162
2163 RemoveOperStmt:  DROP OPERATOR all_Op '(' oper_argtypes ')' opt_drop_behavior
2164                         { $$ = cat_str(6, make_str("drop operator"), $3, make_str("("), $5, make_str(")"), $7); }
2165                 ;
2166
2167 oper_argtypes:  Typename
2168                         { mmerror(PARSE_ERROR, ET_ERROR, "parser: argument type missing (use NONE for unary operators)"); }
2169                 | Typename ',' Typename
2170                         { $$ = cat_str(3, $1, make_str(","), $3); }
2171                 | NONE ',' Typename                     /* left unary */
2172                         { $$ = cat2_str(make_str("none,"), $3); }
2173                 | Typename ',' NONE                     /* right unary */
2174                         { $$ = cat2_str($1, make_str(", none")); }
2175                 ;
2176
2177 any_operator:
2178                         all_Op
2179                                 { $$ = $1; }
2180                         | ColId '.' any_operator
2181                                 { $$ = cat_str(3, $1, make_str("."), $3); }
2182                         ;
2183
2184 CreateCastStmt:         CREATE CAST '(' Typename AS Typename ')'
2185                                 WITH FUNCTION function_with_argtypes cast_context
2186                         { $$ = cat_str(6, make_str("create cast ("), $4, make_str("as"), $6, make_str(") with function"), $10); }
2187                         | CREATE CAST '(' Typename AS Typename ')'
2188                                 WITHOUT FUNCTION cast_context
2189                         { $$ = cat_str(6, make_str("create cast ("), $4, make_str("as"), $6, make_str(") without function"), $10); }
2190                 ;
2191
2192 cast_context: AS ASSIGNMENT   { $$ = make_str("as assignment"); }
2193                 | /*EMPTY*/     { $$ = EMPTY; }
2194                 ;
2195
2196
2197 DropCastStmt: DROP CAST '(' Typename AS Typename ')' opt_drop_behavior
2198                         { $$ = cat_str(6, make_str("drop cast ("), $4, make_str("as"), $6, make_str(")"), $8); }
2199                 ;
2200
2201 /*****************************************************************************
2202  *
2203  *                              QUERY:
2204  *
2205  *                              REINDEX type <typename> [FORCE] [ALL]
2206  *
2207  *****************************************************************************/
2208 ReindexStmt:  REINDEX reindex_type qualified_name opt_force
2209                         { $$ = cat_str(4, make_str("reindex"), $2, $3, $4); }
2210                 | REINDEX DATABASE name opt_force
2211                         { $$ = cat_str(3, make_str("reindex database"), $3, $4); }
2212                 ;
2213
2214 reindex_type:   INDEX           { $$ = make_str("index"); }
2215                 | TABLE         { $$ = make_str("table"); }
2216                 ;
2217
2218 opt_force: FORCE                        { $$ = make_str("force"); }
2219                 | /* EMPTY */           { $$ = EMPTY; }
2220                 ;
2221
2222 /*****************************************************************************
2223  *
2224  *              QUERY:
2225  *                              rename <attrname1> in <relname> [*] to <attrname2>
2226  *                              rename <relname1> to <relname2>
2227  *
2228  *****************************************************************************/
2229
2230 RenameStmt:  ALTER AGGREGATE func_name '(' aggr_argtype ')' RENAME TO name
2231                         { $$ = cat_str(6, make_str("alter aggregate"), $3, make_str("("), $5, make_str(") rename to"), $9); }
2232         | ALTER CONVERSION_P any_name RENAME TO name
2233                         { $$ = cat_str(4, make_str("alter conversion"), $3, make_str("rename to"), $6); }
2234         | ALTER DATABASE database_name RENAME TO database_name
2235                         { $$ = cat_str(4, make_str("alter database"), $3, make_str("rename to"), $6); }
2236         | ALTER FUNCTION func_name func_args RENAME TO name
2237                         { $$ = cat_str(5, make_str("alter function"), $3, $4, make_str("rename to"), $7); }
2238         | ALTER GROUP_P UserId RENAME TO UserId
2239                         { $$ = cat_str(4, make_str("alter group"), $3, make_str("rename to"), $6); }
2240         | ALTER LANGUAGE name RENAME TO name
2241                         { $$ = cat_str(4, make_str("alter language"), $3, make_str("rename to"), $6); }
2242         | ALTER OPERATOR CLASS any_name USING access_method RENAME TO name
2243                         { $$ = cat_str(6, make_str("alter operator class"), $4, make_str("using"), $6, make_str("rename to"), $9); }
2244         | ALTER SCHEMA name RENAME TO name
2245                         { $$ = cat_str(4, make_str("alter schema"), $3, make_str("rename to"), $6); }
2246         | ALTER TABLE relation_expr RENAME opt_column opt_name TO name
2247                         { $$ = cat_str(7, make_str("alter table"), $3, make_str("rename"), $5, $6, make_str("to"), $8); }
2248         | ALTER TRIGGER name ON relation_expr RENAME TO name
2249                         { $$ = cat_str(6, make_str("alter trigger"), $3, make_str("on"), $5, make_str("rename to"), $8); }
2250         | ALTER USER UserId RENAME TO UserId
2251                         { $$ = cat_str(4, make_str("alter user"), $3, make_str("rename to"), $6); }
2252                 ;
2253
2254 opt_name:  name                         { $$ = $1; }
2255                 | /*EMPTY*/                     { $$ = EMPTY; }
2256                 ;
2257
2258 opt_column:  COLUMN                     { $$ = make_str("column"); }
2259                 | /*EMPTY*/                     { $$ = EMPTY; }
2260                 ;
2261
2262
2263 /*****************************************************************************
2264  *
2265  *              QUERY:  Define Rewrite Rule
2266  *
2267  *****************************************************************************/
2268
2269 RuleStmt:  CREATE opt_or_replace RULE name AS
2270                    { QueryIsRule=1; }
2271                    ON event TO qualified_name where_clause
2272                    DO opt_instead RuleActionList
2273                 {
2274                         QueryIsRule=0;
2275                         $$ = cat_str(12, make_str("create"), $2, make_str("rule"), $4, make_str("as on"), $8, make_str("to"), $10, $11, make_str("do"), $13, $14);
2276                 }
2277                 ;
2278
2279 RuleActionList:  NOTHING                                { $$ = make_str("nothing"); }
2280                 | RuleActionStmt                                { $$ = $1; }
2281                 | '(' RuleActionMulti ')'               { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2282                                 ;
2283
2284 /* the thrashing around here is to discard "empty" statements... */
2285 RuleActionMulti:  RuleActionMulti ';' RuleActionStmtOrEmpty
2286                         {  $$ = cat_str(3, $1, make_str(";"), $3); }
2287                 | RuleActionStmtOrEmpty
2288                         { $$ = cat2_str($1, make_str(";")); }
2289                 ;
2290
2291 RuleActionStmt:   SelectStmt
2292                 | InsertStmt
2293                 | UpdateStmt
2294                 | DeleteStmt
2295                 | NotifyStmt
2296                 ;
2297
2298 RuleActionStmtOrEmpty: RuleActionStmt   { $$ = $1; }
2299            | /*EMPTY*/                                          { $$ = EMPTY; }
2300            ;
2301
2302 /* change me to select, update, etc. some day */
2303 event:  SELECT                          { $$ = make_str("select"); }
2304                 | UPDATE                        { $$ = make_str("update"); }
2305                 | DELETE_P                      { $$ = make_str("delete"); }
2306                 | INSERT                        { $$ = make_str("insert"); }
2307                  ;
2308
2309 opt_instead:  INSTEAD           { $$ = make_str("instead"); }
2310                 | /*EMPTY*/                     { $$ = EMPTY; }
2311                 ;
2312
2313 DropRuleStmt:  DROP RULE name ON qualified_name opt_drop_behavior
2314                 { $$ = cat_str(5, make_str("drop rule"), $3, make_str("on"), $5, $6);}
2315                 ;
2316
2317 /*****************************************************************************
2318  *
2319  *              QUERY:
2320  *                              NOTIFY <qualified_name> can appear both in rule bodies and
2321  *                              as a query-level command
2322  *
2323  *****************************************************************************/
2324
2325 NotifyStmt:  NOTIFY qualified_name
2326                 { $$ = cat2_str(make_str("notify"), $2); }
2327                 ;
2328
2329 ListenStmt:  LISTEN qualified_name
2330                 { $$ = cat2_str(make_str("listen"), $2); }
2331                 ;
2332
2333 UnlistenStmt:  UNLISTEN qualified_name
2334                         { $$ = cat2_str(make_str("unlisten"), $2); }
2335                 | UNLISTEN '*'
2336                         { $$ = make_str("unlisten *"); }
2337                 ;
2338
2339
2340 /*****************************************************************************
2341  *
2342  *                              Transactions:
2343  *
2344  *        BEGIN / COMMIT / ROLLBACK
2345  *              (also older versions END / ABORT)
2346  *
2347  *****************************************************************************/
2348 TransactionStmt:  ABORT_P opt_transaction               { $$ = make_str("rollback"); }
2349                 | BEGIN_P opt_transaction               { $$ = make_str("begin transaction"); }
2350                 | START TRANSACTION transaction_mode_list_or_empty      { $$ = cat2_str(make_str("start transaction"), $3); }
2351                 | COMMIT opt_transaction                { $$ = make_str("commit"); }
2352                 | END_P opt_transaction         { $$ = make_str("commit"); }
2353                 | ROLLBACK opt_transaction              { $$ = make_str("rollback"); }
2354                 ;
2355
2356 opt_transaction: WORK                   { $$ = EMPTY; }
2357                 | TRANSACTION   { $$ = EMPTY; }
2358                 | /*EMPTY*/             { $$ = EMPTY; }
2359                 ;
2360
2361 transaction_mode_list:
2362         ISOLATION LEVEL iso_level
2363         { $$ = cat2_str(make_str("isolation level"), $3); }
2364         | transaction_access_mode
2365         { $$ = $1; }
2366         | ISOLATION LEVEL iso_level transaction_access_mode
2367         { $$ = cat_str(3, make_str("isolation level"), $3, $4); }
2368         | transaction_access_mode ISOLATION LEVEL iso_level
2369         { $$ = cat_str(3, $1, make_str("isolation level"), $4); }
2370         ;
2371
2372 transaction_mode_list_or_empty:
2373         transaction_mode_list   { $$ = $1; }
2374         | /* EMPTY */           { $$ = EMPTY; }
2375         ;
2376
2377 transaction_access_mode:
2378         READ ONLY       { $$ = make_str("read only"); }
2379         | READ WRITE    { $$ = make_str("read write"); }
2380         ;
2381
2382 /*****************************************************************************
2383  *
2384  *              QUERY:
2385  *                              define view <viewname> '('target-list ')' [where <quals> ]
2386  *
2387  *****************************************************************************/
2388
2389 ViewStmt:  CREATE opt_or_replace VIEW qualified_name opt_column_list AS SelectStmt
2390                         { $$ = cat_str(7, make_str("create"), $2, make_str("view"), $4, $5, make_str("as"), $7); }
2391                 ;
2392
2393
2394 /*****************************************************************************
2395  *
2396  *              QUERY:
2397  *                              load make_str("filename")
2398  *
2399  *****************************************************************************/
2400
2401 LoadStmt:  LOAD file_name
2402                         { $$ = cat2_str(make_str("load"), $2); }
2403                 ;
2404
2405
2406 /*****************************************************************************
2407  *
2408  *              CREATE DATABASE
2409  *
2410  *
2411  *****************************************************************************/
2412
2413 CreatedbStmt:  CREATE DATABASE database_name WITH createdb_opt_list
2414                         { $$ = cat_str(4, make_str("create database"), $3, make_str("with"), $5); }
2415                 | CREATE DATABASE database_name
2416                         { $$ = cat2_str(make_str("create database"), $3); }
2417                 ;
2418
2419 createdb_opt_list:      createdb_opt_item
2420                         { $$ = $1; }
2421                 | createdb_opt_list createdb_opt_item
2422                         { $$ = cat2_str($1, $2); }
2423                 ;
2424
2425 createdb_opt_item:      LOCATION opt_equal StringConst
2426                         { $$ = cat_str(3,make_str("location"), $2, $3); }
2427                 | LOCATION opt_equal DEFAULT
2428                         { $$ = cat_str(3, make_str("location"), $2, make_str("default")); }
2429                 | TEMPLATE opt_equal name
2430                         { $$ = cat_str(3, make_str("template"), $2, $3); }
2431                 | TEMPLATE opt_equal DEFAULT
2432                         { $$ = cat_str(3, make_str("template"), $2, make_str("default")); }
2433                 | ENCODING opt_equal PosIntStringConst
2434                         { $$ = cat_str(3, make_str("encoding"), $2, $3); }
2435                 | ENCODING opt_equal DEFAULT
2436                         { $$ = cat_str(3, make_str("encoding"), $2, make_str("default")); }
2437                 | OWNER opt_equal name
2438                         { $$ = cat_str(3, make_str("owner"), $2, $3); }
2439                 | OWNER opt_equal DEFAULT
2440                         { $$ = cat_str(3, make_str("owner"), $2, make_str("default")); }
2441                 ;
2442
2443 opt_equal: '='                                  { $$ = make_str("="); }
2444                 | /* EMPTY */                   { $$ = EMPTY; }
2445                 ;
2446
2447
2448 /*****************************************************************************
2449  *
2450  *                              ALTER DATABASE
2451  *
2452  *
2453  *****************************************************************************/
2454
2455 AlterDatabaseSetStmt: ALTER DATABASE database_name SET set_rest
2456                         { $$ = cat_str(4, make_str("alter database"), $3, make_str("set"), $5); }
2457                 | ALTER DATABASE database_name VariableResetStmt
2458                         { $$ = cat_str(3, make_str("alter database"), $3, $4); }
2459                 ;
2460
2461 /*****************************************************************************
2462  *
2463  *              DROP DATABASE
2464  *
2465  *
2466  *****************************************************************************/
2467
2468 DropdbStmt: DROP DATABASE database_name
2469                         { $$ = cat2_str(make_str("drop database"), $3); }
2470                 ;
2471
2472
2473 /*****************************************************************************
2474  *
2475  * Manipulate a domain
2476  *
2477  *****************************************************************************/
2478
2479 CreateDomainStmt:  CREATE DOMAIN_P any_name opt_as Typename ColQualList opt_collate
2480                         {
2481                                 $$ = cat_str(6, make_str("create domain"), $3, $4, $5, $6, $7);
2482                         }
2483                 ;
2484
2485 AlterDomainStmt:
2486         ALTER DOMAIN_P any_name alter_column_default
2487                 { $$ = cat_str(3, make_str("alter domain"), $3, $4); }
2488         | ALTER DOMAIN_P any_name DROP NOT NULL_P
2489                 { $$ = cat_str(3, make_str("alter domain"), $3, make_str("drop not null")); }
2490         | ALTER DOMAIN_P any_name SET NOT NULL_P
2491                 { $$ = cat_str(3, make_str("alter domain"), $3, make_str("set not null")); }
2492         | ALTER DOMAIN_P any_name ADD TableConstraint
2493                 { $$ = cat_str(4, make_str("alter domain"), $3, make_str("add"), $5); }
2494         | ALTER DOMAIN_P any_name DROP CONSTRAINT name opt_drop_behavior
2495                 { $$ = cat_str(5, make_str("alter domain"), $3, make_str("drop constraint"), $6, $7); }
2496         | ALTER DOMAIN_P any_name OWNER TO UserId
2497                 { $$ = cat_str(4, make_str("alter domain"), $3, make_str("owner to"), $6); }
2498         ;
2499
2500 opt_as: AS      {$$ = make_str("as"); }
2501         | /* EMPTY */   {$$ = EMPTY; }
2502         ;
2503
2504 CreateConversionStmt:
2505                        CREATE opt_default CONVERSION_P any_name FOR StringConst
2506                        TO StringConst FROM any_name
2507                        { $$ = cat_str(10, make_str("create"), $2, make_str("conversion"), $4, make_str("for"), $6, make_str("to"), $8, make_str("from"), $10); }
2508                        ;
2509
2510 /*****************************************************************************
2511  *
2512  *              QUERY:
2513  *                             cluster <index_name> on <qualified_name>
2514  *                             cluster <qualified_name>
2515  *                             cluster
2516  *
2517  *****************************************************************************/
2518
2519 ClusterStmt:  CLUSTER index_name ON qualified_name
2520                         { $$ = cat_str(4, make_str("cluster"), $2, make_str("on"), $4); }
2521         | CLUSTER qualified_name
2522                         { $$ = cat2_str(make_str("cluster"), $2); }
2523         | CLUSTER
2524                         { $$ = make_str("cluster"); }
2525         ;
2526
2527
2528 /*****************************************************************************
2529  *
2530  *              QUERY:
2531  *                              vacuum
2532  *                              analyze
2533  *
2534  *****************************************************************************/
2535
2536 VacuumStmt:  VACUUM opt_full opt_freeze opt_verbose
2537                         { $$ = cat_str(4, make_str("vacuum"), $2, $3, $4); }
2538                 | VACUUM opt_full opt_freeze opt_verbose qualified_name
2539                         { $$ = cat_str(5, make_str("vacuum"), $2, $3, $4, $5); }
2540                 | VACUUM opt_full opt_freeze opt_verbose AnalyzeStmt
2541                         { $$ = cat_str(5, make_str("vacuum"), $2, $3, $4, $5); }
2542                 ;
2543
2544 AnalyzeStmt:  analyze_keyword opt_verbose
2545                         { $$ = cat_str(2, $1, $2); }
2546                 | analyze_keyword opt_verbose qualified_name opt_name_list
2547                         { $$ = cat_str(4, $1, $2, $3, $4); }
2548                 ;
2549
2550 analyze_keyword:  ANALYZE               { $$ = make_str("analyze"); }
2551                 | ANALYSE                               { $$ = make_str("analyse"); }
2552                 ;
2553
2554 opt_verbose:  VERBOSE                   { $$ = make_str("verbose"); }
2555                 | /*EMPTY*/                             { $$ = EMPTY; }
2556                 ;
2557
2558 opt_full:  FULL                                 { $$ = make_str("full"); }
2559                 | /*EMPTY*/                             { $$ = EMPTY; }
2560                 ;
2561
2562 opt_freeze:  FREEZE                             { $$ = make_str("freeze"); }
2563                 | /*EMPTY*/                             { $$ = EMPTY; }
2564                 ;
2565
2566 opt_name_list:  '(' name_list ')'
2567                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2568                 | /*EMPTY*/
2569                         { $$ = EMPTY; }
2570                 ;
2571
2572
2573 /*****************************************************************************
2574  *
2575  *              QUERY:
2576  *                              EXPLAIN query
2577  *
2578  *****************************************************************************/
2579
2580 ExplainStmt:  EXPLAIN opt_analyze opt_verbose ExplainableStmt
2581                         { $$ = cat_str(4, make_str("explain"), $2, $3, $4); }
2582                 ;
2583
2584 ExplainableStmt:
2585                 SelectStmt
2586                 | InsertStmt
2587                 | UpdateStmt
2588                 | DeleteStmt
2589                 | DeclareCursorStmt
2590                 /* | ExecuteStmt */
2591                 ;
2592 opt_analyze:
2593         analyze_keyword                 { $$ = $1; }
2594         | /* EMPTY */                   { $$ = EMPTY; }
2595         ;
2596
2597 /*
2598
2599 conflicts with ecpg
2600
2601 PrepareStmt: PREPARE name prep_type_clause AS PreparableStmt
2602                 { $$ = cat_str(5, make_str("prepare"), $2, $3, make_str("as"), $5); }
2603                 ;
2604
2605 PreparableStmt:
2606                        SelectStmt
2607                        | InsertStmt
2608                        | UpdateStmt
2609                        | DeleteStmt
2610                ;
2611
2612 prep_type_clause: '(' prep_type_list ')'        { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2613                         | /* EMPTY * /          { $$ = EMPTY; }
2614                         ;
2615
2616 prep_type_list: Typename                { $$ = $1; }
2617         | prep_type_list ',' Typename   { $$ = cat_str(3, $1, make_str(","), $3); }
2618         ;
2619
2620 ExecuteStmt: EXECUTE name execute_param_clause
2621                 { $$ = cat_str(3, make_str("execute"), $2, $3); }
2622                 | CREATE OptTemp TABLE qualified_name OptCreateAs AS EXECUTE name execute_param_clause
2623                 { $$ = cat_str(8, make_str("create"), $2, make_str("table"), $4, $5, make_str("as execute"), $8, $9); }
2624
2625                 ;
2626
2627 execute_param_clause: '(' expr_list ')' { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2628                         | /* EMPTY * /          { $$ = EMPTY; }
2629                         ;
2630
2631 DeallocateStmt: DEALLOCATE name         { $$ = cat2_str(make_str("deallocate"), $2); }
2632         | DEALLOCATE PREPARE name       { $$ = cat2_str(make_str("deallocate prepare"), $3); }
2633         ;
2634 */
2635
2636 /*****************************************************************************
2637  *
2638  *              QUERY:
2639  *                              INSERT STATEMENTS
2640  *
2641  *****************************************************************************/
2642
2643 InsertStmt:  INSERT INTO qualified_name insert_rest
2644                         { $$ = cat_str(3, make_str("insert into"), $3, $4); }
2645                 ;
2646
2647 insert_rest:  VALUES '(' insert_target_list ')'
2648                         { $$ = cat_str(3, make_str("values("), $3, make_str(")")); }
2649                 | DEFAULT VALUES
2650                         { $$ = make_str("default values"); }
2651                 | SelectStmt
2652                         { $$ = $1; }
2653                 | '(' insert_column_list ')' VALUES '(' insert_target_list ')'
2654                         { $$ = cat_str(5, make_str("("), $2, make_str(") values ("), $6, make_str(")")); }
2655                 | '(' insert_column_list ')' SelectStmt
2656                         { $$ = cat_str(4, make_str("("), $2, make_str(")"), $4); }
2657                 ;
2658
2659 insert_column_list: insert_column_list ',' insert_column_item
2660                         { $$ = cat_str(3, $1, make_str(","), $3); }
2661                 | insert_column_item
2662                         { $$ = $1; }
2663                 ;
2664
2665 insert_column_item:  ColId opt_indirection
2666                         { $$ = cat2_str($1, $2); }
2667                 ;
2668
2669
2670 /*****************************************************************************
2671  *
2672  *              QUERY:
2673  *                              DELETE STATEMENTS
2674  *
2675  *****************************************************************************/
2676
2677 DeleteStmt:  DELETE_P FROM relation_expr where_clause
2678                         { $$ = cat_str(3, make_str("delete from"), $3, $4); }
2679                 ;
2680
2681 LockStmt:  LOCK_P opt_table qualified_name_list opt_lock
2682                         { $$ = cat_str(4, make_str("lock"), $2, $3, $4); }
2683                 ;
2684
2685 opt_lock:  IN_P lock_type MODE
2686                         { $$ = cat_str(3, make_str("in"), $2, make_str("mode")); }
2687                 | /*EMPTY*/
2688                         { $$ = EMPTY;}
2689                 ;
2690
2691 lock_type:      ACCESS SHARE            { $$ = make_str("access share"); }
2692                 | ROW SHARE                             { $$ = make_str("access share"); }
2693                 | ROW EXCLUSIVE                 { $$ = make_str("row exclusive"); }
2694                 | SHARE UPDATE EXCLUSIVE { $$ = make_str("share update exclusive"); }
2695                 | SHARE                                 { $$ = make_str("share"); }
2696                 | SHARE ROW EXCLUSIVE   { $$ = make_str("share row exclusive"); }
2697                 | EXCLUSIVE                             { $$ = make_str("exclusive"); }
2698                 | ACCESS EXCLUSIVE              { $$ = make_str("access exclusive"); }
2699                 ;
2700
2701 /*****************************************************************************
2702  *
2703  *              QUERY:
2704  *                              UpdateStmt (UPDATE)
2705  *
2706  *****************************************************************************/
2707
2708 UpdateStmt:  UPDATE relation_expr
2709                                 SET update_target_list
2710                                 from_clause
2711                                 where_clause
2712                         {$$ = cat_str(6, make_str("update"), $2, make_str("set"), $4, $5, $6); }
2713                 ;
2714
2715
2716 /*****************************************************************************
2717  *
2718  *              QUERY:
2719  *                              CURSOR STATEMENTS
2720  *
2721  *****************************************************************************/
2722 DeclareCursorStmt:  DECLARE name cursor_options CURSOR opt_hold FOR SelectStmt
2723                 {
2724                         struct cursor *ptr, *this;
2725
2726                         for (ptr = cur; ptr != NULL; ptr = ptr->next)
2727                         {
2728                                 if (strcmp($2, ptr->name) == 0)
2729                                 {
2730                                                 /* re-definition is a bug */
2731                                         snprintf(errortext, sizeof(errortext), "cursor %s already defined", $2);
2732                                         mmerror(PARSE_ERROR, ET_ERROR, errortext);
2733                                 }
2734                         }
2735
2736                         this = (struct cursor *) mm_alloc(sizeof(struct cursor));
2737
2738                         /* initial definition */
2739                         this->next = cur;
2740                         this->name = $2;
2741                         this->connection = connection;
2742                         this->command =  cat_str(7, make_str("declare"), mm_strdup($2), $3, make_str("cursor"), $5, make_str("for"), $7);
2743                         this->argsinsert = argsinsert;
2744                         this->argsresult = argsresult;
2745                         argsinsert = argsresult = NULL;
2746                         cur = this;
2747
2748                         if (INFORMIX_MODE)
2749                                 $$ = cat_str(5, adjust_informix(this->argsinsert), adjust_informix(this->argsresult), make_str("/*"), mm_strdup(this->command), make_str("*/"));
2750                         else
2751                                 $$ = cat_str(3, make_str("/*"), mm_strdup(this->command), make_str("*/"));
2752                 }
2753                 ;
2754
2755 cursor_options:  /* EMPTY */            { $$ = EMPTY; }
2756         | cursor_options BINARY         { $$ = cat2_str($1, make_str("binary")); }
2757         | cursor_options INSENSITIVE    { $$ = cat2_str($1, make_str("insensitive")); }
2758         | cursor_options SCROLL         { $$ = cat2_str($1, make_str("scroll")); }
2759         | cursor_options NO SCROLL      { $$ = cat2_str($1, make_str("no scroll")); }
2760         ;
2761
2762 opt_hold:       /* EMPTY */             { if (compat == ECPG_COMPAT_INFORMIX_SE && autocommit == true)
2763                                                 $$ = make_str("with hold");
2764                                           else
2765                                                  $$ = EMPTY; }
2766         | WITH HOLD                     { $$ = make_str("with hold"); }
2767         | WITHOUT HOLD                  { $$ = make_str("without hold"); }
2768         ;
2769
2770 /*****************************************************************************
2771  *
2772  *              QUERY:
2773  *                              SELECT STATEMENTS
2774  *
2775  *****************************************************************************/
2776
2777 SelectStmt: select_no_parens            %prec UMINUS
2778                         { $$ = $1; }
2779                 |       select_with_parens              %prec UMINUS
2780                         { $$ = $1; }
2781                 ;
2782
2783 select_with_parens: '(' select_no_parens ')'
2784                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2785                 | '(' select_with_parens ')'
2786                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
2787                 ;
2788
2789 select_no_parens:          simple_select
2790                         { $$ = $1; }
2791                 | select_clause sort_clause
2792                         { $$ = cat2_str($1, $2); }
2793                 | select_clause opt_sort_clause for_update_clause opt_select_limit
2794                         { $$ = cat_str(4, $1, $2, $3, $4); }
2795                 | select_clause opt_sort_clause select_limit opt_for_update_clause
2796                         { $$ = cat_str(4, $1, $2, $3, $4); }
2797                 ;
2798
2799 select_clause: simple_select            { $$ = $1; }
2800                 | select_with_parens            { $$ = $1; }
2801                 ;
2802
2803 simple_select:  SELECT opt_distinct target_list
2804                                         into_clause from_clause where_clause
2805                                         group_clause having_clause
2806                         { $$ = cat_str(8, make_str("select"), $2, $3, $4, $5, $6, $7, $8); }
2807                 | select_clause UNION opt_all select_clause
2808                         { $$ = cat_str(4, $1, make_str("union"), $3, $4); }
2809                 | select_clause INTERSECT opt_all select_clause
2810                         { $$ = cat_str(4, $1, make_str("intersect"), $3, $4); }
2811                 | select_clause EXCEPT opt_all select_clause
2812                         { $$ = cat_str(4, $1, make_str("except"), $3, $4); }
2813                 ;
2814
2815 into_clause:  INTO OptTempTableName
2816                 {
2817                         FoundInto = 1;
2818                         $$= cat2_str(make_str("into"), $2);
2819                 }
2820                 | ecpg_into_using               { $$ = EMPTY; }
2821                 | /*EMPTY*/                     { $$ = EMPTY; }
2822                 ;
2823
2824 /*
2825  * Redundancy here is needed to avoid shift/reduce conflicts,
2826  * since TEMP is not a reserved word.  See also OptTemp.
2827  *
2828  * The result is a cons cell (not a true list!) containing
2829  * a boolean and a table name.
2830  */
2831 OptTempTableName:  TEMPORARY opt_table qualified_name
2832                         { $$ = cat_str(3, make_str("temporary"), $2, $3); }
2833                 | TEMP opt_table qualified_name
2834                         { $$ = cat_str(3, make_str("temp"), $2, $3); }
2835                 | LOCAL TEMPORARY opt_table qualified_name
2836                         { $$ = cat_str(3, make_str("local temporary"), $3, $4); }
2837                 | LOCAL TEMP opt_table qualified_name
2838                         { $$ = cat_str(3, make_str("local temp"), $3, $4); }
2839                 | GLOBAL TEMPORARY opt_table qualified_name
2840                         { $$ = cat_str(3, make_str("global temporary"), $3, $4); }
2841                 | GLOBAL TEMP opt_table qualified_name
2842                         { $$ = cat_str(3, make_str("global temp"), $3, $4); }
2843                 | TABLE qualified_name
2844                         { $$ = cat2_str(make_str("table"), $2); }
2845                 | qualified_name
2846                         { $$ = $1; }
2847                 ;
2848
2849 opt_table:      TABLE                           { $$ = make_str("table"); }
2850                 | /*EMPTY*/                             { $$ = EMPTY; }
2851                 ;
2852
2853 opt_all:  ALL                                   { $$ = make_str("all"); }
2854                 | /*EMPTY*/                             { $$ = EMPTY; }
2855                 ;
2856
2857 opt_distinct:  DISTINCT
2858                         { $$ = make_str("distinct"); }
2859                 | DISTINCT ON '(' expr_list ')'
2860                         { $$ = cat_str(3, make_str("distinct on ("), $4, make_str(")")); }
2861                 | ALL
2862                         { $$ = make_str("all"); }
2863                 | /*EMPTY*/
2864                         { $$ = EMPTY; }
2865                 ;
2866
2867 opt_sort_clause:        sort_clause     { $$ = $1; }
2868                 | /* EMPTY */           { $$ = EMPTY; }
2869                 ;
2870
2871 sort_clause:  ORDER BY sortby_list
2872                         { $$ = cat2_str(make_str("order by"), $3); }
2873                 ;
2874
2875 sortby_list:  sortby                                    { $$ = $1; }
2876                 | sortby_list ',' sortby                { $$ = cat_str(3, $1, make_str(","), $3); }
2877                 ;
2878
2879 sortby: a_expr OptUseOp
2880                         { $$ = cat2_str($1, $2); }
2881                 ;
2882
2883 OptUseOp:  USING all_Op         { $$ = cat2_str(make_str("using"), $2); }
2884                 | ASC                           { $$ = make_str("asc"); }
2885                 | DESC                          { $$ = make_str("desc"); }
2886                 | /*EMPTY*/                     { $$ = EMPTY; }
2887                 ;
2888
2889 select_limit:   LIMIT select_limit_value OFFSET select_offset_value
2890                    { $$ = cat_str(4, make_str("limit"), $2, make_str("offset"), $4); }
2891                 | OFFSET select_offset_value LIMIT select_limit_value
2892                    { $$ = cat_str(4, make_str("offset"), $2, make_str("limit"), $4); }
2893                 | LIMIT select_limit_value
2894                    { $$ = cat2_str(make_str("limit"), $2); }
2895                 | OFFSET select_offset_value
2896                    { $$ = cat2_str(make_str("offset"), $2); }
2897                 | LIMIT select_limit_value ',' select_offset_value
2898                    { mmerror(PARSE_ERROR, ET_WARNING, "No longer supported LIMIT #,# syntax passed to backend."); }
2899                 ;
2900
2901 opt_select_limit:       select_limit    { $$ = $1; }
2902                 | /*EMPTY*/                                     { $$ = EMPTY; }
2903                 ;
2904
2905 select_limit_value: a_expr      { $$ = $1; }
2906                 | ALL           { $$ = make_str("all"); }
2907                 | PARAM         { $$ = make_name(); }
2908                 ;
2909
2910 select_offset_value: a_expr { $$ = $1; }
2911                 ;
2912
2913 /*
2914  *      jimmy bell-style recursive queries aren't supported in the
2915  *      current system.
2916  *
2917  *      ...however, recursive addattr and rename supported.  make special
2918  *      cases for these.
2919  */
2920 group_clause:  GROUP_P BY expr_list
2921                         { $$ = cat2_str(make_str("group by"), $3); }
2922                 | /*EMPTY*/
2923                         { $$ = EMPTY; }
2924                 ;
2925
2926 having_clause:  HAVING a_expr
2927                         { $$ = cat2_str(make_str("having"), $2); }
2928                 | /*EMPTY*/
2929                         { $$ = EMPTY; }
2930                 ;
2931
2932 for_update_clause:      FOR UPDATE update_list
2933                         { $$ = make_str("for update"); }
2934                 | FOR READ ONLY
2935                         { $$ = make_str("for read only"); }
2936                 ;
2937
2938 opt_for_update_clause: for_update_clause        { $$ = $1; }
2939                 | /* EMPTY */                                           { $$ = EMPTY; }
2940                 ;
2941
2942 update_list:  OF name_list              { $$ = cat2_str(make_str("of"), $2); }
2943                 | /* EMPTY */                   { $$ = EMPTY; }
2944                 ;
2945
2946 /*****************************************************************************
2947  *
2948  *      clauses common to all Optimizable Stmts:
2949  *              from_clause - allow list of both JOIN expressions and table names
2950  *              where_clause    - qualifications for joins or restrictions
2951  *
2952  *****************************************************************************/
2953
2954 from_clause:    FROM from_list          { $$ = cat2_str(make_str("from"), $2); }
2955                 | /* EMPTY */                           { $$ = EMPTY; }
2956                 ;
2957
2958 from_list:      from_list ',' table_ref { $$ = cat_str(3, $1, make_str(","), $3); }
2959                 | table_ref                                     { $$ = $1; }
2960                 ;
2961
2962 /*
2963  * table_ref is where an alias clause can be attached.  Note we cannot make
2964  * alias_clause have an empty production because that causes parse conflicts
2965  * between table_ref := '(' joined_table ')' alias_clause
2966  * and joined_table := '(' joined_table ')'.  So, we must have the
2967  * redundant-looking productions here instead.
2968  */
2969 table_ref:      relation_expr
2970                         { $$ = $1; }
2971                 | relation_expr alias_clause
2972                         { $$= cat2_str($1, $2); }
2973                 | func_table
2974                         { $$ = $1; }
2975                 | func_table alias_clause
2976                         { $$= cat2_str($1, $2); }
2977                 | func_table AS '(' TableFuncElementList ')'
2978                         { $$=cat_str(4, $1, make_str("as ("), $4, make_str(")")); }
2979                 | func_table AS ColId '(' TableFuncElementList ')'
2980                         { $$=cat_str(6, $1, make_str("as"), $3, make_str("("), $5, make_str(")")); }
2981                 | func_table ColId '(' TableFuncElementList ')'
2982                         { $$=cat_str(5, $1, $2, make_str("("), $4, make_str(")")); }
2983                 | select_with_parens
2984                         {mmerror(PARSE_ERROR, ET_ERROR, "sub-SELECT in FROM must have an alias");}
2985                 | select_with_parens alias_clause
2986                         { $$=cat2_str($1, $2); }
2987                 | joined_table
2988                         { $$ = $1; }
2989                 | '(' joined_table ')' alias_clause
2990                         { $$=cat_str(4, make_str("("), $2, make_str(")"), $4); }
2991                 ;
2992
2993 /*
2994  * It may seem silly to separate joined_table from table_ref, but there is
2995  * method in SQL92's madness: if you don't do it this way you get reduce-
2996  * reduce conflicts, because it's not clear to the parser generator whether
2997  * to expect alias_clause after ')' or not.  For the same reason we must
2998  * treat 'JOIN' and 'join_type JOIN' separately, rather than allowing
2999  * join_type to expand to empty; if we try it, the parser generator can't
3000  * figure out when to reduce an empty join_type right after table_ref.
3001  *
3002  * Note that a CROSS JOIN is the same as an unqualified
3003  * INNER JOIN, and an INNER JOIN/ON has the same shape
3004  * but a qualification expression to limit membership.
3005  * A NATURAL JOIN implicitly matches column names between
3006  * tables and the shape is determined by which columns are
3007  * in common. We'll collect columns during the later transformations.
3008  */
3009
3010 joined_table:  '(' joined_table ')'
3011                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3012                 | table_ref CROSS JOIN table_ref
3013                         { $$ = cat_str(3, $1, make_str("cross join"), $4); }
3014                 | table_ref UNIONJOIN table_ref
3015                         { $$ = cat_str(3, $1, make_str("unionjoin"), $3); }
3016                 | table_ref join_type JOIN table_ref join_qual
3017                         { $$ = cat_str(5, $1, $2, make_str("join"), $4, $5); }
3018                 | table_ref JOIN table_ref join_qual
3019                         { $$ = cat_str(4, $1, make_str("join"), $3, $4); }
3020                 | table_ref NATURAL join_type JOIN table_ref
3021                         { $$ = cat_str(5, $1, make_str("natural"), $3, make_str("join"), $5); }
3022                 | table_ref NATURAL JOIN table_ref
3023                         { $$ = cat_str(3, $1, make_str("natural join"), $4); }
3024                 ;
3025
3026 alias_clause:  AS ColId '(' name_list ')'
3027                         { $$ = cat_str(5, make_str("as"), $2, make_str("("), $4, make_str(")")); }
3028                 | AS ColId
3029                         { $$ = cat2_str(make_str("as"), $2); }
3030                 | ColId '(' name_list ')'
3031                         { $$ = cat_str(4, $1, make_str("("), $3, make_str(")")); }
3032                 | ColId
3033                         { $$ = $1; }
3034                 ;
3035
3036 join_type:      FULL join_outer         { $$ = cat2_str(make_str("full"), $2); }
3037                 | LEFT join_outer               { $$ = cat2_str(make_str("left"), $2); }
3038                 | RIGHT join_outer              { $$ = cat2_str(make_str("right"), $2); }
3039                 | INNER_P                               { $$ = make_str("inner"); }
3040                 ;
3041
3042 /* OUTER is just noise... */
3043 join_outer:  OUTER_P                    { $$ = make_str("outer"); }
3044                 | /*EMPTY*/                             { $$ = EMPTY;  /* no qualifiers */ }
3045                 ;
3046
3047 /* JOIN qualification clauses
3048  * Possibilities are:
3049  *      USING ( column list ) allows only unqualified column names,
3050  *                                                which must match between tables.
3051  *      ON expr allows more general qualifications.
3052  */
3053
3054 join_qual:      USING '(' name_list ')'
3055                         { $$ = cat_str(3, make_str("using ("), $3, make_str(")")); }
3056                 | ON a_expr
3057                         { $$ = cat2_str(make_str("on"), $2); }
3058                 ;
3059
3060 relation_expr:  qualified_name
3061                         { /* normal relations */ $$ = $1; }
3062                 | qualified_name '*'
3063                         { /* inheritance query */ $$ = cat2_str($1, make_str("*")); }
3064                 | ONLY qualified_name
3065                         { /* inheritance query */ $$ = cat2_str(make_str("only "), $2); }
3066                 | ONLY '(' qualified_name ')'
3067                         { /* inheritance query */ $$ = cat_str(3, make_str("only ("), $3, make_str(")")); }
3068                 ;
3069
3070 func_table:  func_name '(' ')'
3071                 { $$ = cat2_str($1, make_str("()")); }
3072         | func_name '(' expr_list ')'
3073                 { $$ = cat_str(4, $1, make_str("("), $3, make_str(")")); }
3074         ;
3075
3076 where_clause:  WHERE a_expr             { $$ = cat2_str(make_str("where"), $2); }
3077                 | /*EMPTY*/                             { $$ = EMPTY;  /* no qualifiers */ }
3078                 ;
3079
3080 TableFuncElementList: TableFuncElement
3081                         { $$ = $1; }
3082                 | TableFuncElementList ',' TableFuncElement
3083                         { $$ = cat_str(3, $1, ',', $3); }
3084                 ;
3085
3086 TableFuncElement:       ColId Typename  { $$ = cat2_str($1, $2); }
3087                         ;
3088
3089 /*****************************************************************************
3090  *
3091  *      Type syntax
3092  *              SQL92 introduces a large amount of type-specific syntax.
3093  *              Define individual clauses to handle these cases, and use
3094  *               the generic case to handle regular type-extensible Postgres syntax.
3095  *              - thomas 1997-10-10
3096  *
3097  *****************************************************************************/
3098
3099 Typename:  SimpleTypename opt_array_bounds
3100                         { $$ = cat2_str($1, $2.str); }
3101                 | SETOF SimpleTypename opt_array_bounds
3102                         { $$ = cat_str(3, make_str("setof"), $2, $3); }
3103                 | SimpleTypename ARRAY '[' PosIntConst ']'
3104                         { $$ = cat_str(4, $1, make_str("array ["), $4, make_str("]")); }
3105                 | SETOF SimpleTypename ARRAY '[' PosIntConst ']'
3106                         { $$ = cat_str(5, make_str("setof"), $2, make_str("array ["), $5, make_str("]")); }
3107                 ;
3108
3109
3110 opt_array_bounds:  '[' ']' opt_array_bounds
3111                 {
3112                         $$.index1 = make_str("0");
3113                         $$.index2 = $3.index1;
3114                         $$.str = cat2_str(make_str("[]"), $3.str);
3115                 }
3116                 | '[' Iresult ']' opt_array_bounds
3117                 {
3118                         $$.index1 = strdup($2);
3119                         $$.index2 = $4.index1;
3120                         $$.str = cat_str(4, make_str("["), $2, make_str("]"), $4.str);
3121                 }
3122                 | /* EMPTY */
3123                 {
3124                         $$.index1 = make_str("-1");
3125                         $$.index2 = make_str("-1");
3126                         $$.str= EMPTY;
3127                 }
3128                 ;
3129
3130 Iresult:        PosIntConst             { $$ = $1; }
3131                 | '(' Iresult ')'       { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3132                 | Iresult '+' Iresult   { $$ = cat_str(3, $1, make_str("+"), $3); }
3133                 | Iresult '-' Iresult   { $$ = cat_str(3, $1, make_str("-"), $3); }
3134                 | Iresult '*' Iresult   { $$ = cat_str(3, $1, make_str("*"), $3); }
3135                 | Iresult '/' Iresult   { $$ = cat_str(3, $1, make_str("/"), $3); }
3136                 | Iresult '%' Iresult   { $$ = cat_str(3, $1, make_str("%"), $3); }
3137                 | Sconst                { $$ = $1; }
3138                 | ColId                 { $$ = $1; }
3139                 ;
3140
3141 SimpleTypename:  GenericType            { $$ = $1; }
3142                 | ConstDatetime         { $$ = $1; }
3143                 | Numeric               { $$ = $1; }
3144                 | Bit                   { $$ = $1; }
3145                 | Character             { $$ = $1; }
3146                 | ConstInterval opt_interval
3147                         { $$ = cat2_str($1, $2); }
3148                 | ConstInterval '(' PosIntConst ')' opt_interval
3149                         { $$ = cat_str(5, $1, make_str("("), $3, make_str(")"), $5); }
3150                 | type_name attrs
3151                         { $$ = cat2_str($1, $2);}
3152                 ;
3153
3154 ConstTypename:  GenericType             { $$ = $1; }
3155                 | ConstDatetime         { $$ = $1; }
3156                 | Numeric               { $$ = $1; }
3157                 | ConstBit              { $$ = $1; }
3158                 | ConstCharacter        { $$ = $1; }
3159                 ;
3160
3161 GenericType:  type_name                 { $$ = $1; }
3162                 ;
3163
3164 /* SQL92 numeric data types
3165  * Check FLOAT() precision limits assuming IEEE floating types.
3166  * Provide real DECIMAL() and NUMERIC() implementations now - Jan 1998-12-30
3167  * - thomas 1997-09-18
3168  */
3169 Numeric:  INT_P
3170                         { $$ = make_str("int"); }
3171                 | INTEGER
3172                         { $$ = make_str("integer"); }
3173                 | SMALLINT
3174                         { $$ = make_str("smallint"); }
3175                 | BIGINT
3176                         { $$ = make_str("bigint"); }
3177                 | REAL
3178                         { $$ = make_str("real"); }
3179                 | FLOAT_P opt_float
3180                         { $$ = cat2_str(make_str("float"), $2); }
3181                 | DOUBLE_P PRECISION
3182                         { $$ = make_str("double precision"); }
3183                 | DECIMAL_P opt_decimal
3184                         { $$ = cat2_str(make_str("decimal"), $2); }
3185                 | DEC opt_decimal
3186                         { $$ = cat2_str(make_str("dec"), $2); }
3187                 | NUMERIC opt_numeric
3188                         { $$ = cat2_str(make_str("numeric"), $2); }
3189                 | BOOLEAN_P
3190                         { $$ = make_str("boolean"); }
3191                 ;
3192
3193 opt_float:      '(' PosIntConst ')'
3194                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3195                 | /*EMPTY*/
3196                         { $$ = EMPTY; }
3197                 ;
3198
3199 opt_numeric:  '(' PosIntConst ',' PosIntConst ')'
3200                         { $$ = cat_str(5, make_str("("), $2, make_str(","), $4, make_str(")")); }
3201                 | '(' PosIntConst ')'
3202                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3203                 | /*EMPTY*/
3204                         { $$ = EMPTY; }
3205                 ;
3206
3207 opt_decimal:  '(' PosIntConst ',' PosIntConst ')'
3208                         { $$ = cat_str(5, make_str("("), $2, make_str(","), $4, make_str(")")); }
3209                 | '(' PosIntConst ')'
3210                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3211                 | /*EMPTY*/
3212                         { $$ = EMPTY; }
3213                 ;
3214
3215 /*
3216  * SQL92 bit-field data types
3217  * The following implements BIT() and BIT VARYING().
3218  */
3219
3220 Bit:    BitWithLength           { $$ = $1; }
3221         | BitWithoutLength      { $$ = $1; }
3222         ;
3223
3224 ConstBit:       BitWithLength   { $$ = $1; }
3225                 | BitWithoutLength      { $$ = $1; }
3226                 ;
3227
3228 BitWithLength:  BIT opt_varying '(' PosIntConst ')'
3229                         { $$ = cat_str(5, make_str("bit"), $2, make_str("("), $4, make_str(")")); }
3230                 ;
3231
3232 BitWithoutLength: BIT opt_varying
3233                         { $$ = cat2_str(make_str("bit"), $2); }
3234                 ;
3235
3236 /*
3237  * SQL92 character data types
3238  * The following implements CHAR() and VARCHAR().
3239  *                                                              - ay 6/95
3240  */
3241 Character:      CharacterWithLength             { $$ = $1; }
3242                 | CharacterWithoutLength        { $$ = $1; }
3243                 ;
3244
3245 ConstCharacter: CharacterWithLength     { $$ = $1; }
3246                 | CharacterWithoutLength      { $$ = $1; }
3247                 ;
3248
3249 CharacterWithLength: character '(' PosIntConst ')' opt_charset
3250                         { $$ = cat_str(5, $1, make_str("("), $3, make_str(")"), $5); }
3251                 ;
3252
3253 CharacterWithoutLength: character opt_charset
3254                         { $$ = cat2_str($1, $2); }
3255                 ;
3256
3257 character:      CHARACTER opt_varying
3258                         { $$ = cat2_str(make_str("character"), $2); }
3259                 | CHAR_P opt_varying
3260                         { $$ = cat2_str(make_str("char"), $2); }
3261                 | VARCHAR
3262                         { $$ = make_str("varchar"); }
3263                 | NATIONAL CHARACTER opt_varying
3264                         { $$ = cat2_str(make_str("national character"), $3); }
3265                 | NATIONAL CHAR_P opt_varying
3266                         { $$ = cat2_str(make_str("national char"), $3); }
3267                 | NCHAR opt_varying
3268                         { $$ = cat2_str(make_str("nchar"), $2); }
3269                 ;
3270
3271 opt_varying:  VARYING
3272                         { $$ = make_str("varying"); }
3273                 | /*EMPTY*/
3274                         { $$ = EMPTY; }
3275                 ;
3276
3277 opt_charset:  CHARACTER SET ColId
3278                         { $$ = cat2_str(make_str("character set"), $3); }
3279                 | /*EMPTY*/
3280                         { $$ = EMPTY; }
3281                 ;
3282
3283 opt_collate:  COLLATE ColId
3284                         { $$ = cat2_str(make_str("collate"), $2); }
3285                 | /*EMPTY*/
3286                         { $$ = EMPTY; }
3287                 ;
3288
3289 ConstDatetime:  TIMESTAMP '(' PosIntConst ')' opt_timezone
3290                         { $$ = cat_str(4, make_str("timestamp("), $3, make_str(")"), $5); }
3291                 | TIMESTAMP opt_timezone
3292                         { $$ = cat2_str(make_str("timestamp"), $2); }
3293                 | TIME '(' PosIntConst ')' opt_timezone
3294                         { $$ = cat_str(4, make_str("time("), $3, make_str(")"), $5); }
3295                 | TIME opt_timezone
3296                         { $$ = cat2_str(make_str("time"), $2); }
3297                 ;
3298
3299 ConstInterval:  INTERVAL
3300                         { $$ = make_str("interval"); }
3301                 ;
3302
3303 opt_timezone:  WITH TIME ZONE
3304                         { $$ = make_str("with time zone"); }
3305                 | WITHOUT TIME ZONE
3306                         { $$ = make_str("without time zone"); }
3307                 | /*EMPTY*/
3308                         { $$ = EMPTY; }
3309                 ;
3310
3311 opt_interval:  YEAR_P                   { $$ = make_str("year"); }
3312                 | MONTH_P                               { $$ = make_str("month"); }
3313                 | DAY_P                                 { $$ = make_str("day"); }
3314                 | HOUR_P                                { $$ = make_str("hour"); }
3315                 | MINUTE_P                              { $$ = make_str("minute"); }
3316                 | SECOND_P                              { $$ = make_str("second"); }
3317                 | YEAR_P TO MONTH_P             { $$ = make_str("year to month"); }
3318                 | DAY_P TO HOUR_P               { $$ = make_str("day to hour"); }
3319                 | DAY_P TO MINUTE_P             { $$ = make_str("day to minute"); }
3320                 | DAY_P TO SECOND_P             { $$ = make_str("day to second"); }
3321                 | HOUR_P TO MINUTE_P    { $$ = make_str("hour to minute"); }
3322                 | MINUTE_P TO SECOND_P  { $$ = make_str("minute to second"); }
3323                 | HOUR_P TO SECOND_P    { $$ = make_str("hour to second"); }
3324                 | /*EMPTY*/                             { $$ = EMPTY; }
3325                 ;
3326
3327
3328 /*****************************************************************************
3329  *
3330  *      expression grammar
3331  *
3332  *****************************************************************************/
3333
3334 /* Expressions using row descriptors
3335  * Define row_descriptor to allow yacc to break the reduce/reduce conflict
3336  *      with singleton expressions.
3337  */
3338 r_expr: row IN_P select_with_parens
3339                         { $$ = cat_str(3, $1, make_str("in"), $3); }
3340                 | row NOT IN_P select_with_parens
3341                         { $$ = cat_str(3, $1, make_str("not in"), $4); }
3342                 | row qual_all_Op sub_type select_with_parens %prec Op
3343                         { $$ = cat_str(4, $1, $2, $3, $4); }
3344                 | row qual_all_Op select_with_parens %prec Op
3345                         { $$ = cat_str(3, $1, $2, $3); }
3346                 | row qual_all_Op row %prec Op
3347                         { $$ = cat_str(3, $1, $2, $3); }
3348                 | row IS NULL_P
3349                         { $$ = cat2_str($1, make_str("is null")); }
3350                 | row IS NOT NULL_P
3351                         { $$ = cat2_str($1, make_str("is not null")); }
3352                 | row OVERLAPS row
3353                         { $$ = cat_str(3, $1, make_str("overlaps"), $3); }
3354                 | row IS DISTINCT FROM row %prec IS
3355                         { $$ = cat_str(3, $1, make_str("is distinct from"), $5); }
3356                 ;
3357
3358 row: ROW '(' row_descriptor ')'
3359                 { $$ = cat_str(3, make_str("row ("), $3, make_str(")")); }
3360         | ROW '(' a_expr ')'
3361                 { $$ = cat_str(3, make_str("row ("), $3, make_str(")")); }
3362         | ROW '(' ')'
3363                 { $$ = make_str("row()"); }
3364         | '(' row_descriptor ')'
3365                 { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3366         ;
3367
3368 row_descriptor:  expr_list ',' a_expr
3369                         { $$ = cat_str(3, $1, make_str(","), $3); }
3370                 ;
3371
3372 sub_type:  ANY                                  { $$ = make_str("ANY"); }
3373                 | SOME                                  { $$ = make_str("SOME"); }
3374                 | ALL                                   { $$ = make_str("ALL"); }
3375                           ;
3376
3377 all_Op:  Op                             { $$ = $1; }
3378         | MathOp                        { $$ = $1; }
3379         ;
3380
3381 MathOp: '+'                             { $$ = make_str("+"); }
3382                 | '-'                   { $$ = make_str("-"); }
3383                 | '*'                   { $$ = make_str("*"); }
3384                 | '%'                   { $$ = make_str("%"); }
3385                 | '^'                   { $$ = make_str("^"); }
3386                 | '/'                   { $$ = make_str("/"); }
3387                 | '<'                   { $$ = make_str("<"); }
3388                 | '>'                   { $$ = make_str(">"); }
3389                 | '='                   { $$ = make_str("="); }
3390                 ;
3391
3392 qual_Op:  Op                            { $$ = $1; }
3393                 | OPERATOR '(' any_operator ')' { $$ = cat_str(3, make_str("operator ("), $3, make_str(")")); }
3394                 ;
3395
3396 qual_all_Op:  all_Op                            { $$ = $1; }
3397                 | OPERATOR '(' any_operator ')' { $$ = cat_str(3, make_str("operator ("), $3, make_str(")")); }
3398                 ;
3399
3400 /* General expressions
3401  * This is the heart of the expression syntax.
3402  *
3403  * We have two expression types: a_expr is the unrestricted kind, and
3404  * b_expr is a subset that must be used in some places to avoid shift/reduce
3405  * conflicts.  For example, we can't do BETWEEN as "BETWEEN a_expr AND a_expr"
3406  * because that use of AND conflicts with AND as a boolean operator.  So,
3407  * b_expr is used in BETWEEN and we remove boolean keywords from b_expr.
3408  *
3409  * Note that '(' a_expr ')' is a b_expr, so an unrestricted expression can
3410  * always be used by surrounding it with parens.
3411  *
3412  * c_expr is all the productions that are common to a_expr and b_expr;
3413  * it's factored out just to eliminate redundant coding.
3414  */
3415
3416 a_expr:  c_expr
3417                         { $$ = $1; }
3418                 | a_expr TYPECAST Typename
3419                         { $$ = cat_str(3, $1, make_str("::"), $3); }
3420                 | a_expr AT TIME ZONE c_expr
3421                         { $$ = cat_str(3, $1, make_str("at time zone"), $5); }
3422                 /*
3423                  * These operators must be called out explicitly in order to make use
3424                  * of yacc/bison's automatic operator-precedence handling.  All other
3425                  * operator names are handled by the generic productions using "Op",
3426                  * below; and all those operators will have the same precedence.
3427                  *
3428                  * If you add more explicitly-known operators, be sure to add them
3429                  * also to b_expr and to the MathOp list above.
3430                  */
3431                 | '+' a_expr %prec UMINUS
3432                         { $$ = cat2_str(make_str("+"), $2); }
3433                 | '-' a_expr %prec UMINUS
3434                         { $$ = cat2_str(make_str("-"), $2); }
3435                 | '%' a_expr
3436                         { $$ = cat2_str(make_str("%"), $2); }
3437                 | '^' a_expr
3438                         { $$ = cat2_str(make_str("^"), $2); }
3439                 | a_expr '%'
3440                         { $$ = cat2_str($1, make_str("%")); }
3441                 | a_expr '^'
3442                         { $$ = cat2_str($1, make_str("^")); }
3443                 | a_expr '+' a_expr
3444                         { $$ = cat_str(3, $1, make_str("+"), $3); }
3445                 | a_expr '-' a_expr
3446                         { $$ = cat_str(3, $1, make_str("-"), $3); }
3447                 | a_expr '*' a_expr
3448                         { $$ = cat_str(3, $1, make_str("*"), $3); }
3449                 | a_expr '/' a_expr
3450                         { $$ = cat_str(3, $1, make_str("/"), $3); }
3451                 | a_expr '%' a_expr
3452                         { $$ = cat_str(3, $1, make_str("%"), $3); }
3453                 | a_expr '^' a_expr
3454                         { $$ = cat_str(3, $1, make_str("^"), $3); }
3455                 | a_expr '<' a_expr
3456                         { $$ = cat_str(3, $1, make_str("<"), $3); }
3457                 | a_expr '>' a_expr
3458                         { $$ = cat_str(3, $1, make_str(">"), $3); }
3459                 | a_expr '=' a_expr
3460                         { $$ = cat_str(3, $1, make_str("="), $3); }
3461                 | a_expr qual_Op a_expr         %prec Op
3462                         { $$ = cat_str(3, $1, $2, $3); }
3463                 | qual_Op a_expr                %prec Op
3464                         { $$ = cat2_str($1, $2); }
3465                 | a_expr qual_Op                %prec POSTFIXOP
3466                         { $$ = cat2_str($1, $2); }
3467                 | a_expr AND a_expr
3468                         { $$ = cat_str(3, $1, make_str("and"), $3); }
3469                 | a_expr OR a_expr
3470                         { $$ = cat_str(3, $1, make_str("or"), $3); }
3471                 | NOT a_expr
3472                         { $$ = cat2_str(make_str("not"), $2); }
3473                 | a_expr LIKE a_expr
3474                         { $$ = cat_str(3, $1, make_str("like"), $3); }
3475                 | a_expr LIKE a_expr ESCAPE a_expr
3476                         { $$ = cat_str(5, $1, make_str("like"), $3, make_str("escape"), $5); }
3477                 | a_expr NOT LIKE a_expr
3478                         { $$ = cat_str(3, $1, make_str("not like"), $4); }
3479                 | a_expr NOT LIKE a_expr ESCAPE a_expr
3480                         { $$ = cat_str(5, $1, make_str("not like"), $4, make_str("escape"), $6); }
3481                 | a_expr ILIKE a_expr
3482                         { $$ = cat_str(3, $1, make_str("ilike"), $3); }
3483                 | a_expr ILIKE a_expr ESCAPE a_expr
3484                         { $$ = cat_str(5, $1, make_str("ilike"), $3, make_str("escape"), $5); }
3485                 | a_expr NOT ILIKE a_expr
3486                         { $$ = cat_str(3, $1, make_str("not ilike"), $4); }
3487                 | a_expr NOT ILIKE a_expr ESCAPE a_expr
3488                         { $$ = cat_str(5, $1, make_str("not ilike"), $4, make_str("escape"), $6); }
3489                 | a_expr SIMILAR TO a_expr      %prec SIMILAR
3490                         { $$ = cat_str(3, $1, make_str("similar to"), $4); }
3491                 | a_expr SIMILAR TO a_expr ESCAPE a_expr
3492                         { $$ = cat_str(5, $1, make_str("similar to"), $4, make_str("escape"), $6); }
3493                 | a_expr NOT SIMILAR TO a_expr  %prec SIMILAR
3494                         { $$ = cat_str(3, $1, make_str("not similar to"), $5); }
3495                 | a_expr NOT SIMILAR TO a_expr ESCAPE a_expr
3496                         { $$ = cat_str(5, $1, make_str("not similar to"), $5, make_str("escape"), $7); }
3497                 | a_expr ISNULL
3498                         { $$ = cat2_str($1, make_str("isnull")); }
3499                 | a_expr IS NULL_P
3500                         { $$ = cat2_str($1, make_str("is null")); }
3501                 | a_expr NOTNULL
3502                         { $$ = cat2_str($1, make_str("notnull")); }
3503                 | a_expr IS NOT NULL_P
3504                         { $$ = cat2_str($1, make_str("is not null")); }
3505                 /* IS TRUE, IS FALSE, etc used to be function calls
3506                  *      but let's make them expressions to allow the optimizer
3507                  *      a chance to eliminate them if a_expr is a constant string.
3508                  * - thomas 1997-12-22
3509                  *
3510                  *      Created BooleanTest Node type, and changed handling
3511                  *      for NULL inputs
3512                  * - jec 2001-06-18
3513                  */
3514                 | a_expr IS TRUE_P
3515                         { $$ = cat2_str($1, make_str("is true")); }
3516                 | a_expr IS NOT TRUE_P
3517                         { $$ = cat2_str($1, make_str("is not true")); }
3518                 | a_expr IS FALSE_P
3519                         { $$ = cat2_str($1, make_str("is false")); }
3520                 | a_expr IS NOT FALSE_P
3521                         { $$ = cat2_str($1, make_str("is not false")); }
3522                 | a_expr IS UNKNOWN
3523                         { $$ = cat2_str($1, make_str("is unknown")); }
3524                 | a_expr IS NOT UNKNOWN
3525                         { $$ = cat2_str($1, make_str("is not unknown")); }
3526                 | a_expr IS DISTINCT FROM a_expr %prec IS
3527                         { $$ = cat_str(3, $1, make_str("is distinct from"), $5); }
3528                 | a_expr IS OF '(' type_list ')' %prec IS
3529                         { $$ = cat_str(4, $1, make_str("is of ("), $5, make_str(")")); }
3530                 | a_expr IS NOT OF '(' type_list ')' %prec IS
3531                         { $$ = cat_str(4, $1, make_str("is not of ("), $6, make_str(")")); }
3532                 | a_expr BETWEEN b_expr AND b_expr      %prec BETWEEN
3533                         { $$ = cat_str(5, $1, make_str("between"), $3, make_str("and"), $5); }
3534                 | a_expr NOT BETWEEN b_expr AND b_expr  %prec BETWEEN
3535                         { $$ = cat_str(5, $1, make_str("not between"), $4, make_str("and"), $6); }
3536                 | a_expr IN_P in_expr
3537                         { $$ = cat_str(3, $1, make_str("in"), $3); }
3538                 | a_expr NOT IN_P in_expr
3539                         { $$ = cat_str(3, $1, make_str("not in"), $4); }
3540                 | a_expr qual_all_Op sub_type select_with_parens %prec Op
3541                         { $$ = cat_str(4, $1, $2, $3, $4); }
3542                 | a_expr qual_all_Op sub_type '(' a_expr ')' %prec Op
3543                         { $$ = cat_str(6, $1, $2, $3, make_str("("), $5, make_str(")")); }
3544                 | UNIQUE select_with_parens %prec Op
3545                         { $$ = cat2_str(make_str("unique"), $2); }
3546                 | r_expr
3547                         { $$ = $1; }
3548                 ;
3549
3550 /* Restricted expressions
3551  *
3552  * b_expr is a subset of the complete expression syntax
3553  *
3554  * Presently, AND, NOT, IS and IN are the a_expr keywords that would
3555  * cause trouble in the places where b_expr is used.  For simplicity, we
3556  * just eliminate all the boolean-keyword-operator productions from b_expr.
3557  */
3558 b_expr:  c_expr
3559                         { $$ = $1; }
3560                 | b_expr TYPECAST Typename
3561                         { $$ = cat_str(3, $1, make_str("::"), $3); }
3562                 | '-' b_expr %prec UMINUS
3563                         { $$ = cat2_str(make_str("-"), $2); }
3564                 | '%' b_expr
3565                         { $$ = cat2_str(make_str("%"), $2); }
3566                 | '^' b_expr
3567                         { $$ = cat2_str(make_str("^"), $2); }
3568                 | b_expr '%'
3569                         { $$ = cat2_str($1, make_str("%")); }
3570                 | b_expr '^'
3571                         { $$ = cat2_str($1, make_str("^")); }
3572                 | b_expr '+' b_expr
3573                         { $$ = cat_str(3, $1, make_str("+"), $3); }
3574                 | b_expr '-' b_expr
3575                         { $$ = cat_str(3, $1, make_str("-"), $3); }
3576                 | b_expr '*' b_expr
3577                         { $$ = cat_str(3, $1, make_str("*"), $3); }
3578                 | b_expr '/' b_expr
3579                         { $$ = cat_str(3, $1, make_str("/"), $3); }
3580                 | b_expr '%' b_expr
3581                         { $$ = cat_str(3, $1, make_str("%"), $3); }
3582                 | b_expr '^' b_expr
3583                         { $$ = cat_str(3, $1, make_str("^"), $3); }
3584                 | b_expr '<' b_expr
3585                         { $$ = cat_str(3, $1, make_str("<"), $3); }
3586                 | b_expr '>' b_expr
3587                         { $$ = cat_str(3, $1, make_str(">"), $3); }
3588                 | b_expr '=' b_expr
3589                         { $$ = cat_str(3, $1, make_str("="), $3); }
3590                 | b_expr Op b_expr
3591                         { $$ = cat_str(3, $1, $2, $3); }
3592                 | qual_Op b_expr                %prec Op
3593                         { $$ = cat2_str($1, $2); }
3594                 | b_expr qual_Op                %prec POSTFIXOP
3595                         { $$ = cat2_str($1, $2); }
3596                 | b_expr IS DISTINCT FROM b_expr %prec IS
3597                         { $$ = cat_str(3, $1, make_str("is distinct from"), $5); }
3598                 | b_expr IS OF '(' b_expr ')' %prec IS
3599                         { $$ = cat_str(4, $1, make_str("is of ("), $5, make_str(")")); }
3600                 | b_expr IS NOT OF '(' b_expr ')' %prec IS
3601                         { $$ = cat_str(4, $1, make_str("is not of ("), $6, make_str(")")); }
3602                 ;
3603
3604 /*
3605  * Productions that can be used in both a_expr and b_expr.
3606  *
3607  * Note: productions that refer recursively to a_expr or b_expr mostly
3608  * cannot appear here.  However, it's OK to refer to a_exprs that occur
3609  * inside parentheses, such as function arguments; that cannot introduce
3610  * ambiguity to the b_expr syntax.
3611  */
3612 c_expr: columnref
3613                         { $$ = $1;      }
3614                 | AexprConst
3615                         { $$ = $1;      }
3616                 | PARAM attrs opt_indirection
3617                         { $$ = cat_str(3, make_str("param"), $2, $3); }
3618                 | '(' a_expr ')' attrs opt_indirection
3619                         { $$ = cat_str(5, make_str("("), $2, make_str(")"), $4, $5); }
3620                 | '(' a_expr ')' opt_indirection
3621                         { $$ = cat_str(4, make_str("("), $2, make_str(")"), $4); }
3622                 | case_expr
3623                         { $$ = $1; }
3624                 | func_name '(' ')'
3625                         { $$ = cat2_str($1, make_str("()"));    }
3626                 | func_name '(' expr_list ')'
3627                         { $$ = cat_str(4, $1, make_str("("), $3, make_str(")"));        }
3628                 | func_name '(' ALL expr_list ')'
3629                         { $$ = cat_str(4, $1, make_str("( all"), $4, make_str(")"));    }
3630                 | func_name '(' DISTINCT expr_list ')'
3631                         { $$ = cat_str(4, $1, make_str("( distinct"), $4, make_str(")"));  }
3632                 | func_name '(' '*' ')'
3633                         { $$ = cat2_str($1, make_str("(*)")); }
3634                 | CURRENT_DATE
3635                         { $$ = make_str("current_date"); }
3636                 | CURRENT_TIME opt_empty_parentheses
3637                         { $$ = cat2_str(make_str("current_time"), $2); }
3638                 | CURRENT_TIME '(' PosIntConst ')'
3639                         { $$ = make_str("current_time"); }
3640                 | CURRENT_TIMESTAMP opt_empty_parentheses
3641                         { $$ = cat2_str(make_str("current_timestamp"), $2); }
3642                 | CURRENT_TIMESTAMP '(' PosIntConst ')'
3643                         { $$ = make_str("current_timestamp"); }
3644                 | CURRENT_USER opt_empty_parentheses
3645                         { $$ = cat2_str(make_str("current_user"), $2); }
3646                 | SESSION_USER opt_empty_parentheses
3647                         { $$ = cat2_str(make_str("session_user"), $2); }
3648                 | USER opt_empty_parentheses
3649                         { $$ = cat2_str(make_str("user"), $2); }
3650                 | CAST '(' a_expr AS Typename ')'
3651                         { $$ = cat_str(5, make_str("cast("), $3, make_str("as"), $5, make_str(")")); }
3652                 | EXTRACT '(' extract_list ')'
3653                         { $$ = cat_str(3, make_str("extract("), $3, make_str(")")); }
3654                 | OVERLAY '(' overlay_list ')'
3655                         { $$ = cat_str(3, make_str("overlay("), $3, make_str(")")); }
3656                 | POSITION '(' position_list ')'
3657                         { $$ = cat_str(3, make_str("position("), $3, make_str(")")); }
3658                 | SUBSTRING '(' substr_list ')'
3659                         { $$ = cat_str(3, make_str("substring("), $3, make_str(")")); }
3660                 | TREAT '(' a_expr AS Typename ')'
3661                         { $$ = cat_str(5, make_str("treat("), $3, make_str("as"), $5, make_str(")")); }
3662                 /* various trim expressions are defined in SQL92 - thomas 1997-07-19 */
3663                 | TRIM '(' BOTH trim_list ')'
3664                         { $$ = cat_str(3, make_str("trim(both"), $4, make_str(")")); }
3665                 | TRIM '(' LEADING trim_list ')'
3666                         { $$ = cat_str(3, make_str("trim(leading"), $4, make_str(")")); }
3667                 | TRIM '(' TRAILING trim_list ')'
3668                         { $$ = cat_str(3, make_str("trim(trailing"), $4, make_str(")")); }
3669                 | TRIM '(' trim_list ')'
3670                         { $$ = cat_str(3, make_str("trim("), $3, make_str(")")); }
3671                 | CONVERT '(' a_expr USING any_name ')'
3672                         { $$ = cat_str(5, make_str("convert("), $3, make_str("using"), $5, make_str(")"));}
3673                 | CONVERT '(' expr_list ')'
3674                         { $$ = cat_str(3, make_str("convert("), $3, make_str(")")); }
3675                 | select_with_parens    %prec UMINUS
3676                         { $$ = $1; }
3677                 | EXISTS select_with_parens
3678                         { $$ = cat2_str(make_str("exists"), $2); }
3679                 | ARRAY select_with_parens
3680                         { $$ = cat2_str(make_str("array"), $2); }
3681                 | ARRAY array_expr
3682                         { $$ = cat2_str(make_str("array"), $2); }
3683                 ;
3684 /*
3685  * This used to use ecpg_expr, but since there is no shift/reduce conflict
3686  * anymore, we can remove ecpg_expr. - MM
3687  */
3688 opt_indirection:  '[' a_expr ']' opt_indirection
3689                         { $$ = cat_str(4, make_str("["), $2, make_str("]"), $4); }
3690                 | '[' a_expr ':' a_expr ']' opt_indirection
3691                         { $$ = cat_str(6, make_str("["), $2, make_str(":"), $4, make_str("]"), $6); }
3692                 | /* EMPTY */
3693                         { $$ = EMPTY; }
3694                 ;
3695
3696 expr_list:      a_expr
3697                         { $$ = $1; }
3698                 | expr_list ',' a_expr
3699                         { $$ = cat_str(3, $1, make_str(","), $3); }
3700                 ;
3701
3702 extract_list:  extract_arg FROM a_expr
3703                         { $$ = cat_str(3, $1, make_str("from"), $3); }
3704                 | /* EMPTY */
3705                         { $$ = EMPTY; }
3706                 ;
3707
3708 type_list:      type_list ',' Typename
3709                         { $$ = cat_str(3, $1, ',', $3); }
3710                 | Typename
3711                         { $$ = $1; }
3712                 ;
3713
3714 array_expr_list: array_expr                             { $$ = $1; }
3715                 | array_expr_list ',' array_expr        { $$ = cat_str(3, $1, make_str(","), $3); }
3716                 ;
3717
3718
3719 array_expr: '[' expr_list ']'                   { $$ = cat_str(3, make_str("["), $2, make_str("]")); }
3720                 | '[' array_expr_list ']'       { $$ = cat_str(3, make_str("["), $2, make_str("]")); }
3721                 ;
3722 /* Allow delimited string SCONST in extract_arg as an SQL extension.
3723  * - thomas 2001-04-12
3724  */
3725
3726 extract_arg:  ident                             { $$ = $1; }
3727                 | YEAR_P                                { $$ = make_str("year"); }
3728                 | MONTH_P                               { $$ = make_str("month"); }
3729                 | DAY_P                                 { $$ = make_str("day"); }
3730                 | HOUR_P                                { $$ = make_str("hour"); }
3731                 | MINUTE_P                              { $$ = make_str("minute"); }
3732                 | SECOND_P                              { $$ = make_str("second"); }
3733                 | StringConst                   { $$ = $1; }
3734                 ;
3735
3736 overlay_list:
3737                 a_expr overlay_placing substr_from substr_for
3738                         { $$ = cat_str(4, $1, 42, $3, $4); }
3739                 | a_expr overlay_placing substr_from
3740                         { $$ = cat_str(3, $1, $2, $3); }
3741                 ;
3742
3743 overlay_placing:
3744                         PLACING a_expr          { $$ = cat2_str(make_str("placing"), $2); }
3745                         ;
3746
3747 /* position_list uses b_expr not a_expr to avoid conflict with general IN */
3748 position_list:  b_expr IN_P b_expr
3749                         { $$ = cat_str(3, $1, make_str("in"), $3); }
3750                 | /* EMPTY */
3751                         { $$ = EMPTY; }
3752                 ;
3753
3754 substr_list:  a_expr substr_from substr_for
3755                         { $$ = cat_str(3, $1, $2, $3); }
3756                 | a_expr substr_for substr_from
3757                         { $$ = cat_str(3, $1, $2, $3); }
3758                 | a_expr substr_from
3759                         { $$ = cat2_str($1, $2); }
3760                 | a_expr substr_for
3761                         { $$ = cat2_str($1, $2); }
3762                 | expr_list
3763                         { $$ = $1; }
3764                 | /* EMPTY */
3765                         { $$ = EMPTY; }
3766                 ;
3767
3768 substr_from:  FROM a_expr
3769                         { $$ = cat2_str(make_str("from"), $2); }
3770                 ;
3771
3772 substr_for:  FOR a_expr
3773                         { $$ = cat2_str(make_str("for"), $2); }
3774                 ;
3775
3776 trim_list:      a_expr FROM expr_list
3777                         { $$ = cat_str(3, $1, make_str("from"), $3); }
3778                 | FROM expr_list
3779                         { $$ = cat2_str(make_str("from"), $2); }
3780                 | expr_list
3781                         { $$ = $1; }
3782                 ;
3783
3784 in_expr:  select_with_parens
3785                         { $$ = $1; }
3786                 | '(' expr_list ')'
3787                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
3788                 ;
3789
3790 /* Case clause
3791  * Define SQL92-style case clause.
3792  * Allow all four forms described in the standard:
3793  * - Full specification
3794  *      CASE WHEN a = b THEN c ... ELSE d END
3795  * - Implicit argument
3796  *      CASE a WHEN b THEN c ... ELSE d END
3797  * - Conditional NULL
3798  *      NULLIF(x,y)
3799  *      same as CASE WHEN x = y THEN NULL ELSE x END
3800  * - Conditional substitution from list, use first non-null argument
3801  *      COALESCE(a,b,...)
3802  * same as CASE WHEN a IS NOT NULL THEN a WHEN b IS NOT NULL THEN b ... END
3803  * - thomas 1998-11-09
3804  */
3805 case_expr:      CASE case_arg when_clause_list case_default END_P
3806                         { $$ = cat_str(5, make_str("case"), $2, $3, $4, make_str("end")); }
3807                 | NULLIF '(' a_expr ',' a_expr ')'
3808                         { $$ = cat_str(5, make_str("nullif("), $3, make_str(","), $5, make_str(")")); }
3809                 | COALESCE '(' expr_list ')'
3810                         { $$ = cat_str(3, make_str("coalesce("), $3, make_str(")")); }
3811                 ;
3812
3813 when_clause_list:  when_clause_list when_clause
3814                         { $$ = cat2_str($1, $2); }
3815                 | when_clause
3816                         { $$ = $1; }
3817                 ;
3818
3819 when_clause:  WHEN a_expr THEN a_expr
3820                         { $$ = cat_str(4, make_str("when"), $2, make_str("then"), $4); }
3821                 ;
3822
3823 case_default:  ELSE a_expr
3824                         { $$ = cat2_str(make_str("else"), $2); }
3825                 | /*EMPTY*/
3826                         { $$ = EMPTY; }
3827                 ;
3828
3829 case_arg:  a_expr                       { $$ = $1; }
3830                 | /*EMPTY*/                     { $$ = EMPTY; }
3831                 ;
3832
3833 columnref: relation_name opt_indirection
3834                 { $$ = cat2_str($1, $2); }
3835         | dotted_name opt_indirection
3836                 { $$ = cat2_str($1, $2); }
3837         ;
3838
3839 dotted_name: relation_name attrs
3840                         { $$ = cat2_str($1, $2); }
3841                 ;
3842
3843 attrs: '.' attr_name
3844                         { $$ = cat2_str(make_str("."), $2); }
3845                 | '.' '*'
3846                         { $$ = make_str(".*"); }
3847                 | '.' attr_name attrs
3848                         { $$ = cat_str(3, make_str("."), $2, $3); }
3849                 ;
3850
3851 opt_empty_parentheses: '(' ')'  { $$ = make_str("()"); }
3852                 | /*EMPTY*/                             { $$ = EMPTY; }
3853                 ;
3854
3855
3856 /*****************************************************************************
3857  *
3858  *      target lists
3859  *
3860  *****************************************************************************/
3861
3862 /* Target lists as found in SELECT ... and INSERT VALUES ( ... ) */
3863 target_list:  target_list ',' target_el
3864                         { $$ = cat_str(3, $1, make_str(","), $3);  }
3865                 | target_el
3866                         { $$ = $1;      }
3867                 ;
3868
3869 /* AS is not optional because shift/red conflict with unary ops */
3870 target_el:      a_expr AS ColLabel
3871                         { $$ = cat_str(3, $1, make_str("as"), $3); }
3872                 | a_expr
3873                         { $$ = $1; }
3874                 | '*'
3875                         { $$ = make_str("*"); }
3876                 ;
3877
3878 /* Target list as found in UPDATE table SET ... */
3879 update_target_list:  update_target_list ',' update_target_el
3880                         { $$ = cat_str(3, $1, make_str(","),$3);        }
3881                 | '(' inf_col_list ')' '=' '(' inf_val_list ')'
3882                         {
3883                                 struct inf_compat_col *ptrc;
3884                                 struct inf_compat_val *ptrv;
3885                                 char *cols = make_str( "(" );
3886                                 char *vals = make_str( "(" );
3887
3888                                 for (ptrc = informix_col, ptrv = informix_val; ptrc != NULL && ptrv != NULL; ptrc = ptrc->next, ptrv = ptrv->next)
3889                                 {
3890                                         if ( ptrc->next != NULL )
3891                                         {
3892                                                 cols = cat_str(4, cols, ptrc->name, ptrc->indirection, make_str(",") );
3893                                         }
3894                                         else
3895                                         {
3896                                                 cols = cat_str(4, cols, ptrc->name, ptrc->indirection, make_str(")") );
3897                                         }
3898                                         if (ptrv->next != NULL )
3899                                                 vals = cat_str(3, vals, ptrv->val, make_str("," ) );
3900                                         else
3901                                                 vals = cat_str( 3, vals, ptrv->val, make_str(")") );
3902                                 }
3903                                 $$ = cat_str( 3, cols, make_str("="), vals );
3904                         }
3905                 | update_target_el
3906                         { $$ = $1;      }
3907                 ;
3908
3909 inf_col_list: ColId opt_indirection
3910                 {
3911                         struct inf_compat_col *ptr = mm_alloc(sizeof(struct inf_compat_col));
3912
3913                         ptr->name = $1;
3914                         ptr->indirection = $2;
3915                         ptr->next = NULL;
3916                         informix_col = ptr;
3917                 }
3918                 | ColId opt_indirection ',' inf_col_list
3919                 {
3920                         struct inf_compat_col *ptr = mm_alloc(sizeof(struct inf_compat_col));
3921
3922                         ptr->name = $1;
3923                         ptr->indirection = $2;
3924                         ptr->next = informix_col;
3925                         informix_col = ptr;
3926                 }
3927                 ;
3928
3929 inf_val_list: a_expr
3930                 {
3931                         struct inf_compat_val *ptr = mm_alloc(sizeof(struct inf_compat_val));
3932
3933                         ptr->val = $1;
3934                         ptr->next = NULL;
3935                         informix_val = ptr;
3936                 }
3937                 | a_expr ',' inf_val_list
3938                 {
3939                         struct inf_compat_val *ptr = mm_alloc(sizeof(struct inf_compat_val));
3940
3941                         ptr->val = $1;
3942                         ptr->next = informix_val;
3943                         informix_val = ptr;
3944                 }
3945                 ;
3946
3947 update_target_el:  ColId opt_indirection '=' a_expr
3948                         { $$ = cat_str(4, $1, $2, make_str("="), $4); }
3949                 | ColId opt_indirection '=' DEFAULT
3950                         { $$ = cat_str(3, $1, $2, make_str("= default")); }
3951                 ;
3952
3953 insert_target_list:  insert_target_list ',' insert_target_el
3954                                 {       $$ = cat_str(3, $1, make_str(","), $3);  }
3955                 | insert_target_el
3956                                 {       $$ = $1;  }
3957                 ;
3958
3959 insert_target_el:  target_el    {       $$ = $1;  }
3960                 | DEFAULT       {       $$ = make_str("default"); }
3961                 ;
3962
3963
3964 /*****************************************************************************
3965  *
3966  *         Names and constants
3967  *
3968  *****************************************************************************/
3969
3970 relation_name:  SpecialRuleRelation     { $$ = $1; }
3971                 | ColId                 { $$ = $1; }
3972                 ;
3973
3974 qualified_name_list:  qualified_name
3975                                 { $$ = $1; }
3976                 | qualified_name_list ',' qualified_name
3977                                 { $$ = cat_str(3, $1, make_str(","), $3); }
3978                 ;
3979
3980 qualified_name: relation_name
3981                 { $$ = $1; }
3982                 | dotted_name
3983                 { $$ = $1; }
3984                 ;
3985
3986 name_list:  name
3987                         { $$ = $1; }
3988                 | name_list ',' name
3989                         { $$ = cat_str(3, $1, make_str(","), $3); }
3990                 ;
3991
3992
3993 name:                           ColId                   { $$ = $1; };
3994 database_name:                  ColId                   { $$ = $1; };
3995 access_method:                  ColId                   { $$ = $1; };
3996 attr_name:                              ColId                   { $$ = $1; };
3997 index_name:                             ColId                   { $$ = $1; };
3998
3999 file_name:                              StringConst             { $$ = $1; };
4000
4001 /* func_name will soon return a List ... but not yet */
4002 /*
4003 func_name: function_name
4004                         { $$ = makeList1(makeString($1)); }
4005                 | dotted_name
4006                         { $$ = $1; }
4007                 ;
4008 */
4009 func_name: function_name
4010                         { $$ = $1; }
4011                 | dotted_name
4012                         { $$ = $1; }
4013                 ;
4014
4015
4016 /* Constants
4017  * Include TRUE/FALSE for SQL3 support. - thomas 1997-10-24
4018  */
4019 AexprConst:  PosAllConst
4020                         { $$ = $1; }
4021                 | ConstTypename StringConst
4022                         { $$ = cat2_str($1, $2); }
4023                 | ConstInterval StringConst opt_interval
4024                         { $$ = cat_str(3, $1, $2, $3); }
4025                 | ConstInterval  '(' PosIntConst ')' StringConst opt_interval
4026                         { $$ = cat_str(6, $1, make_str("("), $3, make_str(")"), $5, $6); }
4027                 | PARAM opt_indirection
4028                         { $$ = cat2_str(make_str("param"), $2); }
4029                 | TRUE_P
4030                         { $$ = make_str("true"); }
4031                 | FALSE_P
4032                         { $$ = make_str("false"); }
4033                 | NULL_P
4034                         { $$ = make_str("null"); }
4035                 | civarind
4036                         { $$ = $1; }
4037                 ;
4038
4039 Iconst:  ICONST                         { $$ = make_name();};
4040 Fconst:  FCONST                         { $$ = make_name();};
4041 Bconst:  BCONST                         { $$ = make_name();};
4042 Xconst:  XCONST                         { $$ = make_name();};
4043 Sconst:  SCONST
4044                 {
4045                         $$ = (char *)mm_alloc(strlen($1) + 3);
4046                         $$[0]='\'';
4047                                         strcpy($$+1, $1);
4048                         $$[strlen($1)+2]='\0';
4049                         $$[strlen($1)+1]='\'';
4050                         free($1);
4051                 }
4052                 ;
4053
4054 PosIntConst:    Iconst          { $$ = $1; }
4055                 | civar         { $$ = $1; }
4056                 ;
4057
4058 IntConst:       PosIntConst             { $$ = $1; }
4059                 | '-' PosIntConst       { $$ = cat2_str(make_str("-"), $2); }
4060                 ;
4061
4062 StringConst:    Sconst          { $$ = $1; }
4063                 | civar         { $$ = $1; }
4064                 ;
4065
4066 PosIntStringConst:      Iconst  { $$ = $1; }
4067                 | Sconst        { $$ = $1; }
4068                 | civar         { $$ = $1; }
4069                 ;
4070
4071 NumConst:       Fconst                  { $$ = $1; }
4072                 | Iconst                { $$ = $1; }
4073                 | '-' Fconst            { $$ = cat2_str(make_str("-"), $2); }
4074                 | '-' Iconst            { $$ = cat2_str(make_str("-"), $2); }
4075                 | civar                 { $$ = $1; }
4076                 ;
4077
4078 AllConst:       Sconst                  { $$ = $1; }
4079                 | NumConst              { $$ = $1; }
4080                 ;
4081
4082 PosAllConst:    Sconst          { $$ = $1; }
4083                 | Fconst        { $$ = $1; }
4084                 | Iconst        { $$ = $1; }
4085                 | Bconst        { $$ = $1; }
4086                 | Xconst        { $$ = $1; }
4087                 | civar         { $$ = $1; }
4088                 ;
4089
4090 UserId:  ColId                          { $$ = $1;};
4091
4092 SpecialRuleRelation:  OLD
4093                 {
4094                         if (!QueryIsRule)
4095                                 mmerror(PARSE_ERROR, ET_ERROR, "OLD used in non-rule query");
4096
4097                         $$ = make_str("old");
4098                 }
4099                 | NEW
4100                 {
4101                         if (!QueryIsRule)
4102                                 mmerror(PARSE_ERROR, ET_ERROR, "NEW used in non-rule query");
4103
4104                         $$ = make_str("new");
4105                 }
4106                 ;
4107
4108 /*
4109  * and now special embedded SQL stuff
4110  */
4111
4112 /*
4113  * the exec sql connect statement: connect to the given database
4114  */
4115 ECPGConnect: SQL_CONNECT TO connection_target opt_connection_name opt_user
4116                         { $$ = cat_str(5, $3, make_str(","), $5, make_str(","), $4); }
4117                 | SQL_CONNECT TO DEFAULT
4118                         { $$ = make_str("NULL,NULL,NULL,\"DEFAULT\""); }
4119                   /* also allow ORACLE syntax */
4120                 | SQL_CONNECT ora_user
4121                         { $$ = cat_str(3, make_str("NULL,"), $2, make_str(",NULL")); }
4122                 | DATABASE connection_target
4123                         { $$ = cat2_str($2, make_str(",NULL,NULL,NULL")); }
4124                 ;
4125
4126 connection_target: database_name opt_server opt_port
4127                 {
4128                         /* old style: dbname[@server][:port] */
4129                         if (strlen($2) > 0 && *($2) != '@')
4130                         {
4131                                 snprintf(errortext, sizeof(errortext),
4132                                                  "Expected '@', found '%s'", $2);
4133                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4134                         }
4135
4136                         $$ = make3_str(make_str("\""), make3_str($1, $2, $3), make_str("\""));
4137                 }
4138                 |  db_prefix ':' server opt_port '/' database_name opt_options
4139                 {
4140                         /* new style: <tcp|unix>:postgresql://server[:port][/dbname] */
4141                         if (strncmp($1, "unix:postgresql", strlen("unix:postgresql")) != 0 && strncmp($1, "tcp:postgresql", strlen("tcp:postgresql")) != 0)
4142                         {
4143                                 snprintf(errortext, sizeof(errortext), "only protocols 'tcp' and 'unix' and database type 'postgresql' are supported");
4144                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4145                         }
4146
4147                         if (strncmp($3, "//", strlen("//")) != 0)
4148                         {
4149                                 snprintf(errortext, sizeof(errortext), "Expected '://', found '%s'", $3);
4150                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4151                         }
4152
4153                         if (strncmp($1, "unix", strlen("unix")) == 0 &&
4154                                 strncmp($3 + strlen("//"), "localhost", strlen("localhost")) != 0 &&
4155                                 strncmp($3 + strlen("//"), "127.0.0.1", strlen("127.0.0.1")) != 0)
4156                         {
4157                                 snprintf(errortext, sizeof(errortext), "unix domain sockets only work on 'localhost' but not on '%9.9s'", $3 + strlen("//"));
4158                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4159                         }
4160
4161                         $$ = make3_str(make3_str(make_str("\""), $1, make_str(":")), $3, make3_str(make3_str($4, make_str("/"), $6),    $7, make_str("\"")));
4162                 }
4163                 | StringConst
4164                 {
4165                         if ($1[0] == '\"')
4166                                 $$ = $1;
4167                         else if (strcmp($1, " ?") == 0) /* variable */
4168                         {
4169                                 enum ECPGttype type = argsinsert->variable->type->type;
4170
4171                                 /* if array see what's inside */
4172                                 if (type == ECPGt_array)
4173                                         type = argsinsert->variable->type->u.element->type;
4174
4175                                 /* handle varchars */
4176                                 if (type == ECPGt_varchar)
4177                                         $$ = make2_str(mm_strdup(argsinsert->variable->name), make_str(".arr"));
4178                                 else
4179                                         $$ = mm_strdup(argsinsert->variable->name);
4180                         }
4181                         else
4182                                 $$ = make3_str(make_str("\""), $1, make_str("\""));
4183                 }
4184                 ;
4185
4186 db_prefix: ident CVARIABLE
4187                 {
4188                         if (strcmp($2, "postgresql") != 0 && strcmp($2, "postgres") != 0)
4189                         {
4190                                 snprintf(errortext, sizeof(errortext), "Expected 'postgresql', found '%s'", $2);
4191                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4192                         }
4193
4194                         if (strcmp($1, "tcp") != 0 && strcmp($1, "unix") != 0)
4195                         {
4196                                 snprintf(errortext, sizeof(errortext), "Illegal connection type %s", $1);
4197                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4198                         }
4199
4200                         $$ = make3_str($1, make_str(":"), $2);
4201                 }
4202                 ;
4203
4204 server: Op server_name
4205                 {
4206                         if (strcmp($1, "@") != 0 && strcmp($1, "//") != 0)
4207                         {
4208                                 snprintf(errortext, sizeof(errortext), "Expected '@' or '://', found '%s'", $1);
4209                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4210                         }
4211
4212                         $$ = make2_str($1, $2);
4213                 }
4214                 ;
4215
4216 opt_server: server                      { $$ = $1; }
4217                 | /*EMPTY*/                     { $$ = EMPTY; }
4218                 ;
4219
4220 server_name: ColId                                      { $$ = $1; }
4221                 | ColId '.' server_name         { $$ = make3_str($1, make_str("."), $3); }
4222                 | IP                                            { $$ = make_name(); }
4223                 ;
4224
4225 opt_port: ':' PosIntConst       { $$ = make2_str(make_str(":"), $2); }
4226                 | /*EMPTY*/                     { $$ = EMPTY; }
4227                 ;
4228
4229 opt_connection_name: AS connection_target { $$ = $2; }
4230                 | /*EMPTY*/                     { $$ = make_str("NULL"); }
4231                 ;
4232
4233 opt_user: USER ora_user         { $$ = $2; }
4234                 | /*EMPTY*/                     { $$ = make_str("NULL,NULL"); }
4235                 ;
4236
4237 ora_user: user_name
4238                         { $$ = cat2_str($1, make_str(", NULL")); }
4239                 | user_name '/' user_name
4240                         { $$ = cat_str(3, $1, make_str(","), $3); }
4241                 | user_name SQL_IDENTIFIED BY user_name
4242                         { $$ = cat_str(3, $1, make_str(","), $4); }
4243                 | user_name USING user_name
4244                         { $$ = cat_str(3, $1, make_str(","), $3); }
4245                 ;
4246
4247 user_name: UserId
4248                 {
4249                         if ($1[0] == '\"')
4250                                 $$ = $1;
4251                         else
4252                                 $$ = make3_str(make_str("\""), $1, make_str("\""));
4253                 }
4254                 | StringConst
4255                 {
4256                         if ($1[0] == '\"')
4257                                 $$ = $1;
4258                         else if (strcmp($1, "?") == 0) /* variable */
4259                         {
4260                                 enum ECPGttype type = argsinsert->variable->type->type;
4261
4262                                 /* if array see what's inside */
4263                                 if (type == ECPGt_array)
4264                                         type = argsinsert->variable->type->u.element->type;
4265
4266                                 /* handle varchars */
4267                                 if (type == ECPGt_varchar)
4268                                         $$ = make2_str(mm_strdup(argsinsert->variable->name), make_str(".arr"));
4269                                 else
4270                                         $$ = mm_strdup(argsinsert->variable->name);
4271                         }
4272                         else
4273                                 $$ = make3_str(make_str("\""), $1, make_str("\""));
4274                 }
4275                 ;
4276
4277 char_variable: CVARIABLE
4278                 {
4279                         /* check if we have a char variable */
4280                         struct variable *p = find_variable($1);
4281                         enum ECPGttype type = p->type->type;
4282
4283                         /* if array see what's inside */
4284                         if (type == ECPGt_array)
4285                                 type = p->type->u.element->type;
4286
4287                         switch (type)
4288                         {
4289                                 case ECPGt_char:
4290                                 case ECPGt_unsigned_char:
4291                                         $$ = $1;
4292                                         break;
4293                                 case ECPGt_varchar:
4294                                         $$ = make2_str($1, make_str(".arr"));
4295                                         break;
4296                                 default:
4297                                         mmerror(PARSE_ERROR, ET_ERROR, "invalid datatype");
4298                                         break;
4299                         }
4300                 }
4301                 ;
4302
4303 opt_options: Op ColId
4304                 {
4305                         if (strlen($1) == 0)
4306                                 mmerror(PARSE_ERROR, ET_ERROR, "incomplete statement");
4307
4308                         if (strcmp($1, "?") != 0)
4309                         {
4310                                 snprintf(errortext, sizeof(errortext), "unrecognised token '%s'", $1);
4311                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
4312                         }
4313
4314                         $$ = make2_str(make_str("?"), $2);
4315                 }
4316                 | /*EMPTY*/     { $$ = EMPTY; }
4317                 ;
4318
4319 /*
4320  * Declare a prepared cursor. The syntax is different from the standard
4321  * declare statement, so we create a new rule.
4322  */
4323 ECPGCursorStmt:  DECLARE name cursor_options CURSOR opt_hold FOR ident
4324                 {
4325                         struct cursor *ptr, *this;
4326                         struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
4327
4328                         for (ptr = cur; ptr != NULL; ptr = ptr->next)
4329                         {
4330                                 if (strcmp($2, ptr->name) == 0)
4331                                 {
4332                                                 /* re-definition is a bug */
4333                                         snprintf(errortext, sizeof(errortext), "cursor %s already defined", $2);
4334                                         mmerror(PARSE_ERROR, ET_ERROR, errortext);
4335                                 }
4336                         }
4337
4338                         this = (struct cursor *) mm_alloc(sizeof(struct cursor));
4339
4340                         /* initial definition */
4341                         this->next = cur;
4342                         this->name = $2;
4343                         this->connection = connection;
4344                         this->command =  cat_str(6, make_str("declare"), mm_strdup($2), $3, make_str("cursor"), $5, make_str("for ?"));
4345                         this->argsresult = NULL;
4346
4347                         thisquery->type = &ecpg_query;
4348                         thisquery->brace_level = 0;
4349                         thisquery->next = NULL;
4350                         thisquery->name = (char *) mm_alloc(sizeof("ECPGprepared_statement(\"\")") + strlen($7));
4351                         sprintf(thisquery->name, "ECPGprepared_statement(\"%s\")", $7);
4352
4353                         this->argsinsert = NULL;
4354                         add_variable(&(this->argsinsert), thisquery, &no_indicator);
4355
4356                         cur = this;
4357
4358                         $$ = cat_str(3, make_str("/*"), mm_strdup(this->command), make_str("*/"));
4359                 }
4360                 ;
4361
4362 /*
4363  * the exec sql deallocate prepare command to deallocate a previously
4364  * prepared statement
4365  */
4366 ECPGDeallocate: DEALLOCATE PREPARE ident
4367                         { $$ = $3; }
4368                 | DEALLOCATE ident
4369                         { $$ = $2; }
4370                 ;
4371
4372 /*
4373  * variable decalartion outside exec sql declare block
4374  */
4375 ECPGVarDeclaration: single_vt_declaration;
4376
4377 single_vt_declaration: type_declaration         { $$ = $1; }
4378                 | single_var_declaration        { $$ = $1; }
4379                 ;
4380
4381 single_var_declaration: storage_declaration
4382                 single_vt_type
4383                 {
4384                         actual_type[struct_level].type_enum = $2.type_enum;
4385                         actual_type[struct_level].type_dimension = $2.type_dimension;
4386                         actual_type[struct_level].type_index = $2.type_index;
4387                         actual_type[struct_level].type_sizeof = $2.type_sizeof;
4388                 }
4389                 variable_list ';'
4390                 {
4391                         $$ = cat_str(5, actual_startline[struct_level], $1, $2.type_str, $4, make_str(";\n"));
4392                 }
4393                 | single_vt_type
4394                 {
4395                         actual_type[struct_level].type_enum = $1.type_enum;
4396                         actual_type[struct_level].type_dimension = $1.type_dimension;
4397                         actual_type[struct_level].type_index = $1.type_index;
4398                         actual_type[struct_level].type_sizeof = $1.type_sizeof;
4399                         actual_storage[struct_level] = EMPTY;
4400
4401                         actual_startline[struct_level] = hashline_number();
4402                 }
4403                 variable_list ';'
4404                 {
4405                         $$ = cat_str(4, actual_startline[struct_level], $1.type_str, $3, make_str(";\n"));
4406                 }
4407                 | struct_union_type_with_symbol ';'
4408                 {
4409                         /* this is essantially a typedef but needs the keyword struct/union as well */
4410                         struct typedefs *ptr, *this;
4411
4412                         for (ptr = types; ptr != NULL; ptr = ptr->next)
4413                         {
4414                                 if (strcmp($1.type_str, ptr->name) == 0)
4415                                 {
4416                                         /* re-definition is a bug */
4417                                         snprintf(errortext, sizeof(errortext), "Type %s already defined", $1.type_str);
4418                                         mmerror(PARSE_ERROR, ET_ERROR, errortext);
4419                                 }
4420                         }
4421
4422                         this = (struct typedefs *) mm_alloc(sizeof(struct typedefs));
4423
4424                         /* initial definition */
4425                         this->next = types;
4426                         this->name = $1.type_str;
4427                         this->type = (struct this_type *) mm_alloc(sizeof(struct this_type));
4428                         this->type->type_enum = $1.type_enum;
4429                         this->type->type_str = mm_strdup($1.type_str);
4430                         this->type->type_dimension = make_str("-1"); /* dimension of array */
4431                         this->type->type_index = make_str("-1");    /* length of string */
4432                         this->type->type_sizeof = ECPGstruct_sizeof;
4433                         this->struct_member_list = struct_member_list[struct_level];
4434
4435                         types = this;
4436                         $$ = cat2_str($1.type_sizeof, make_str(";"));
4437                 }
4438                 ;
4439
4440 precision:      NumConst        { $$ = $1; };
4441
4442 opt_scale:      ',' NumConst    { $$ = $2; }
4443                 | /* EMPTY */   { $$ = EMPTY; }
4444                 ;
4445
4446 ecpg_interval:  opt_interval    { $$ = $1; }
4447                 | YEAR_P TO MINUTE_P    { $$ = make_str("year to minute"); }
4448                 | YEAR_P TO SECOND_P    { $$ = make_str("year to second"); }
4449                 | DAY_P TO DAY_P        { $$ = make_str("day to day"); }
4450                 | MONTH_P TO MONTH_P    { $$ = make_str("month to month"); }
4451                 ;
4452
4453 single_vt_type: common_type
4454                 | DOUBLE_P
4455                 {
4456                         $$.type_enum = ECPGt_double;
4457                         $$.type_str = make_str("double");
4458                         $$.type_dimension = make_str("-1");
4459                         $$.type_index = make_str("-1");
4460                         $$.type_sizeof = NULL;
4461                 }
4462                 | ECPGColLabelCommon ecpg_interval
4463                 {
4464                         if (strlen($2) != 0 && strcmp ($1, "datetime") != 0 && strcmp ($1, "interval") != 0)
4465                                 mmerror (PARSE_ERROR, ET_ERROR, "Interval specification not allowed here ");
4466
4467                         /*
4468                          * Check for type names that the SQL grammar treats as
4469                          * unreserved keywords
4470                          */
4471                         if (strcmp($1, "varchar") == 0)
4472                         {
4473                                 $$.type_enum = ECPGt_varchar;
4474                                 $$.type_str = EMPTY;
4475                                 $$.type_dimension = make_str("-1");
4476                                 $$.type_index = make_str("-1");
4477                                 $$.type_sizeof = NULL;
4478                         }
4479                         else if (strcmp($1, "float") == 0)
4480                         {
4481                                 $$.type_enum = ECPGt_float;
4482                                 $$.type_str = make_str("float");
4483                                 $$.type_dimension = make_str("-1");
4484                                 $$.type_index = make_str("-1");
4485                                 $$.type_sizeof = NULL;
4486                         }
4487                         else if (strcmp($1, "numeric") == 0)
4488                         {
4489                                 $$.type_enum = ECPGt_numeric;
4490                                 $$.type_str = make_str("Numeric");
4491                                 $$.type_dimension = make_str("-1");
4492                                 $$.type_index = make_str("-1");
4493                                 $$.type_sizeof = NULL;
4494                         }
4495                         else if (strcmp($1, "decimal") == 0)
4496                         {
4497                                 $$.type_enum = ECPGt_decimal;
4498                                 $$.type_str = make_str("Decimal");
4499                                 $$.type_dimension = make_str("-1");
4500                                 $$.type_index = make_str("-1");
4501                                 $$.type_sizeof = NULL;
4502                         }
4503                         else if (strcmp($1, "date") == 0)
4504                         {
4505                                 $$.type_enum = ECPGt_date;
4506                                 $$.type_str = make_str("Date");
4507                                 $$.type_dimension = make_str("-1");
4508                                 $$.type_index = make_str("-1");
4509                                 $$.type_sizeof = NULL;
4510                         }
4511                         else if (strcmp($1, "timestamp") == 0)
4512                         {
4513                                 $$.type_enum = ECPGt_timestamp;
4514                                 $$.type_str = make_str("Timestamp");
4515                                 $$.type_dimension = make_str("-1");
4516                                 $$.type_index = make_str("-1");
4517                                 $$.type_sizeof = NULL;
4518                         }
4519                         else if (strcmp($1, "datetime") == 0)
4520                         {
4521                                 $$.type_enum = ECPGt_timestamp;
4522                                 $$.type_str = make_str("Timestamp");
4523                                 $$.type_dimension = make_str("-1");
4524                                 $$.type_index = make_str("-1");
4525                                 $$.type_sizeof = NULL;
4526                         }
4527                         else if (strcmp($1, "interval") == 0)
4528                         {
4529                                 $$.type_enum = ECPGt_interval;
4530                                 $$.type_str = make_str("Interval");
4531                                 $$.type_dimension = make_str("-1");
4532                                 $$.type_index = make_str("-1");
4533                                 $$.type_sizeof = NULL;
4534                         }
4535                         else
4536                         {
4537                                 /* this is for typedef'ed types */
4538                                 struct typedefs *this = get_typedef($1);
4539
4540                                 $$.type_str = (this->type->type_enum == ECPGt_varchar) ? EMPTY : mm_strdup(this->name);
4541                                 $$.type_enum = this->type->type_enum;
4542                                 $$.type_dimension = this->type->type_dimension;
4543                                 $$.type_index = this->type->type_index;
4544                                 $$.type_sizeof = this->type->type_sizeof;
4545                                 struct_member_list[struct_level] = ECPGstruct_member_dup(this->struct_member_list);
4546                         }
4547                 }
4548                 | s_struct_union_symbol
4549                 {
4550                         /* this is for named structs/unions */
4551                         char *name;
4552                         struct typedefs *this;
4553                         bool forward = (forward_name != NULL && strcmp($1.symbol, forward_name) == 0 && strcmp($1.su, "struct") == 0);
4554
4555                         name = cat2_str($1.su, $1.symbol);
4556                         /* Do we have a forward definition? */
4557                         if (!forward)
4558                         {
4559                                 /* No */
4560
4561                                 this = get_typedef(name);
4562                                 $$.type_str = mm_strdup(this->name);
4563                                 $$.type_enum = this->type->type_enum;
4564                                 $$.type_dimension = this->type->type_dimension;
4565                                 $$.type_index = this->type->type_index;
4566                                 $$.type_sizeof = this->type->type_sizeof;
4567                                 struct_member_list[struct_level] = ECPGstruct_member_dup(this->struct_member_list);
4568                                 free(name);
4569                         }
4570                         else
4571                         {
4572                                 $$.type_str = name;
4573                                 $$.type_enum = ECPGt_long;
4574                                 $$.type_dimension = make_str("-1");
4575                                 $$.type_index = make_str("-1");
4576                                 $$.type_sizeof = make_str("");
4577                                 struct_member_list[struct_level] = NULL;
4578                         }
4579                 }
4580                 ;
4581
4582 /*
4583  * variable declaration inside exec sql declare block
4584  */
4585 ECPGDeclaration: sql_startdeclare
4586                 { fputs("/* exec sql begin declare section */", yyout); }
4587                 var_type_declarations sql_enddeclare
4588                 {
4589                         fprintf(yyout, "%s/* exec sql end declare section */", $3);
4590                         free($3);
4591                         output_line_number();
4592                 }
4593                 ;
4594
4595 sql_startdeclare: ecpgstart BEGIN_P DECLARE SQL_SECTION ';' {};
4596
4597 sql_enddeclare: ecpgstart END_P DECLARE SQL_SECTION ';' {};
4598
4599 var_type_declarations:  /*EMPTY*/                       { $$ = EMPTY; }
4600                 | vt_declarations                       { $$ = $1; }
4601                 ;
4602
4603 vt_declarations:  var_declaration                       { $$ = $1; }
4604                 | type_declaration                      { $$ = $1; }
4605                 | vt_declarations var_declaration       { $$ = cat2_str($1, $2); }
4606                 | vt_declarations type_declaration      { $$ = cat2_str($1, $2); }
4607                 ;
4608
4609 variable_declarations:  var_declaration                         { $$ = $1; }
4610                 | variable_declarations var_declaration         { $$ = cat2_str($1, $2); }
4611                 ;
4612
4613 type_declaration: S_TYPEDEF
4614         {
4615                 /* reset this variable so we see if there was */
4616                 /* an initializer specified */
4617                 initializer = 0;
4618         }
4619         var_type opt_pointer ECPGColLabelCommon opt_array_bounds ';'
4620         {
4621                 /* add entry to list */
4622                 struct typedefs *ptr, *this;
4623                 char * dimension = $6.index1;
4624                 char * length = $6.index2;
4625
4626                 if (($3.type_enum == ECPGt_struct ||
4627                      $3.type_enum == ECPGt_union) &&
4628                     initializer == 1)
4629                 {
4630                         mmerror(PARSE_ERROR, ET_ERROR, "Initializer not allowed in typedef command");
4631
4632                 }
4633                 else
4634                 {
4635                         for (ptr = types; ptr != NULL; ptr = ptr->next)
4636                         {
4637                                 if (strcmp($5, ptr->name) == 0)
4638                                 {
4639                                         /* re-definition is a bug */
4640                                         snprintf(errortext, sizeof(errortext), "Type %s already defined", $5);
4641                                         mmerror(PARSE_ERROR, ET_ERROR, errortext);
4642                                 }
4643                         }
4644
4645                         adjust_array($3.type_enum, &dimension, &length, $3.type_dimension, $3.type_index, *$4?1:0);
4646
4647                         this = (struct typedefs *) mm_alloc(sizeof(struct typedefs));
4648
4649                         /* initial definition */
4650                         this->next = types;
4651                         this->name = $5;
4652                         this->type = (struct this_type *) mm_alloc(sizeof(struct this_type));
4653                         this->type->type_enum = $3.type_enum;
4654                         this->type->type_str = mm_strdup($5);
4655                         this->type->type_dimension = dimension; /* dimension of array */
4656                         this->type->type_index = length;    /* length of string */
4657                         this->type->type_sizeof = ECPGstruct_sizeof;
4658                         this->struct_member_list = ($3.type_enum == ECPGt_struct || $3.type_enum == ECPGt_union) ?
4659                                 struct_member_list[struct_level] : NULL;
4660
4661                         if ($3.type_enum != ECPGt_varchar &&
4662                             $3.type_enum != ECPGt_char &&
4663                             $3.type_enum != ECPGt_unsigned_char &&
4664                             atoi(this->type->type_index) >= 0)
4665                                 mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
4666
4667                         types = this;
4668                 }
4669
4670                 fprintf(yyout, "typedef %s %s %s %s;\n", $3.type_str, *$4?"*":"", $5, $6.str);
4671                 output_line_number();
4672                 $$ = make_str("");
4673         };
4674
4675 var_declaration: storage_declaration
4676                 var_type
4677                 {
4678                         actual_type[struct_level].type_enum = $2.type_enum;
4679                         actual_type[struct_level].type_dimension = $2.type_dimension;
4680                         actual_type[struct_level].type_index = $2.type_index;
4681                         actual_type[struct_level].type_sizeof = $2.type_sizeof;
4682                 }
4683                 variable_list ';'
4684                 {
4685                         $$ = cat_str(5, actual_startline[struct_level], $1, $2.type_str, $4, make_str(";\n"));
4686                 }
4687                 | var_type
4688                 {
4689                         actual_type[struct_level].type_enum = $1.type_enum;
4690                         actual_type[struct_level].type_dimension = $1.type_dimension;
4691                         actual_type[struct_level].type_index = $1.type_index;
4692                         actual_type[struct_level].type_sizeof = $1.type_sizeof;
4693                         actual_storage[struct_level] = EMPTY;
4694
4695                         actual_startline[struct_level] = hashline_number();
4696                 }
4697                 variable_list ';'
4698                 {
4699                         $$ = cat_str(4, actual_startline[struct_level], $1.type_str, $3, make_str(";\n"));
4700                 }
4701                 | struct_union_type_with_symbol ';'
4702                 {
4703                         /* this is essantially a typedef but needs the keyword struct/union as well */
4704                         struct typedefs *ptr, *this;
4705
4706                         for (ptr = types; ptr != NULL; ptr = ptr->next)
4707                         {
4708                                 if (strcmp($1.type_str, ptr->name) == 0)
4709                                 {
4710                                         /* re-definition is a bug */
4711                                         snprintf(errortext, sizeof(errortext), "Type %s already defined", $1.type_str);
4712                                         mmerror(PARSE_ERROR, ET_ERROR, errortext);
4713                                 }
4714                         }
4715
4716                         this = (struct typedefs *) mm_alloc(sizeof(struct typedefs));
4717
4718                         /* initial definition */
4719                         this->next = types;
4720                         this->name = $1.type_str;
4721                         this->type = (struct this_type *) mm_alloc(sizeof(struct this_type));
4722                         this->type->type_enum = $1.type_enum;
4723                         this->type->type_str = mm_strdup($1.type_str);
4724                         this->type->type_dimension = make_str("-1"); /* dimension of array */
4725                         this->type->type_index = make_str("-1");    /* length of string */
4726                         this->type->type_sizeof = ECPGstruct_sizeof;
4727                         this->struct_member_list = struct_member_list[struct_level];
4728
4729                         types = this;
4730                         $$ = cat2_str($1.type_sizeof, make_str(";"));
4731                 }
4732                 ;
4733
4734 storage_declaration: storage_clause storage_modifier
4735                 {
4736                         actual_storage[struct_level] = cat2_str(mm_strdup($1), mm_strdup($2));
4737                         actual_startline[struct_level] = hashline_number();
4738                 }
4739                 | storage_clause
4740                 {
4741                         actual_storage[struct_level] = mm_strdup($1);
4742                         actual_startline[struct_level] = hashline_number();
4743                 }
4744                 | storage_modifier
4745                 {
4746                         actual_storage[struct_level] = mm_strdup($1);
4747                         actual_startline[struct_level] = hashline_number();
4748                 }
4749                 ;
4750
4751 storage_clause : S_EXTERN               { $$ = make_str("extern"); }
4752                 | S_STATIC              { $$ = make_str("static"); }
4753                 | S_REGISTER            { $$ = make_str("register"); }
4754                 | S_AUTO                { $$ = make_str("auto"); }
4755                 ;
4756
4757 storage_modifier : S_CONST              { $$ = make_str("const"); }
4758                 | S_VOLATILE            { $$ = make_str("volatile"); }
4759                 ;
4760
4761 common_type: simple_type
4762                 {
4763                         $$.type_enum = $1;
4764                         $$.type_str = mm_strdup(ECPGtype_name($1));
4765                         $$.type_dimension = make_str("-1");
4766                         $$.type_index = make_str("-1");
4767                         $$.type_sizeof = NULL;
4768                 }
4769                 | struct_union_type
4770                 {
4771                         $$.type_str = $1;
4772                         $$.type_dimension = make_str("-1");
4773                         $$.type_index = make_str("-1");
4774
4775                         if (strncmp($1, "struct", sizeof("struct")-1) == 0)
4776                         {
4777                                 $$.type_enum = ECPGt_struct;
4778                                 $$.type_sizeof = ECPGstruct_sizeof;
4779                         }
4780                         else
4781                         {
4782                                 $$.type_enum = ECPGt_union;
4783                                 $$.type_sizeof = NULL;
4784                         }
4785                 }
4786                 | enum_type
4787                 {
4788                         $$.type_str = $1;
4789                         $$.type_enum = ECPGt_int;
4790                         $$.type_dimension = make_str("-1");
4791                         $$.type_index = make_str("-1");
4792                         $$.type_sizeof = NULL;
4793                 }
4794                 | ECPGColLabelCommon '(' precision opt_scale ')'
4795                 {
4796                         if (strcmp($1, "numeric") == 0)
4797                         {
4798                                 $$.type_enum = ECPGt_numeric;
4799                                 $$.type_str = make_str("Numeric");
4800                         }
4801                         else if (strcmp($1, "decimal") == 0)
4802                         {
4803                                 $$.type_enum = ECPGt_decimal;
4804                                 $$.type_str = make_str("Decimal");
4805                         }
4806                         else
4807                                 mmerror(PARSE_ERROR, ET_ERROR, "Only numeric/decimal have precision/scale argument");
4808
4809                         $$.type_dimension = make_str("-1");
4810                         $$.type_index = make_str("-1");
4811                         $$.type_sizeof = NULL;
4812                 }
4813                 ;
4814
4815 var_type:       common_type
4816                 | ECPGColLabel ecpg_interval
4817                 {
4818                         if (strlen($2) != 0 && strcmp ($1, "datetime") != 0 && strcmp ($1, "interval") != 0)
4819                                 mmerror (PARSE_ERROR, ET_ERROR, "Interval specification not allowed here ");
4820
4821                         /*
4822                          * Check for type names that the SQL grammar treats as
4823                          * unreserved keywords
4824                          */
4825                         if (strcmp($1, "varchar") == 0)
4826                         {
4827                                 $$.type_enum = ECPGt_varchar;
4828                                 $$.type_str = EMPTY; /*make_str("varchar");*/
4829                                 $$.type_dimension = make_str("-1");
4830                                 $$.type_index = make_str("-1");
4831                                 $$.type_sizeof = NULL;
4832                         }
4833                         else if (strcmp($1, "float") == 0)
4834                         {
4835                                 $$.type_enum = ECPGt_float;
4836                                 $$.type_str = make_str("float");
4837                                 $$.type_dimension = make_str("-1");
4838                                 $$.type_index = make_str("-1");
4839                                 $$.type_sizeof = NULL;
4840                         }
4841                         else if (strcmp($1, "double") == 0)
4842                         {
4843                                 $$.type_enum = ECPGt_double;
4844                                 $$.type_str = make_str("double");
4845                                 $$.type_dimension = make_str("-1");
4846                                 $$.type_index = make_str("-1");
4847                                 $$.type_sizeof = NULL;
4848                         }
4849                         else if (strcmp($1, "numeric") == 0)
4850                         {
4851                                 $$.type_enum = ECPGt_numeric;
4852                                 $$.type_str = make_str("Numeric");
4853                                 $$.type_dimension = make_str("-1");
4854                                 $$.type_index = make_str("-1");
4855                                 $$.type_sizeof = NULL;
4856                         }
4857                         else if (strcmp($1, "decimal") == 0)
4858                         {
4859                                 $$.type_enum = ECPGt_decimal;
4860                                 $$.type_str = make_str("Deciaml");
4861                                 $$.type_dimension = make_str("-1");
4862                                 $$.type_index = make_str("-1");
4863                                 $$.type_sizeof = NULL;
4864                         }
4865                         else if (strcmp($1, "date") == 0)
4866                         {
4867                                 $$.type_enum = ECPGt_date;
4868                                 $$.type_str = make_str("Date");
4869                                 $$.type_dimension = make_str("-1");
4870                                 $$.type_index = make_str("-1");
4871                                 $$.type_sizeof = NULL;
4872                         }
4873                         else if (strcmp($1, "timestamp") == 0)
4874                         {
4875                                 $$.type_enum = ECPGt_timestamp;
4876                                 $$.type_str = make_str("Timestamp");
4877                                 $$.type_dimension = make_str("-1");
4878                                 $$.type_index = make_str("-1");
4879                                 $$.type_sizeof = NULL;
4880                         }
4881                         else if (strcmp($1, "interval") == 0)
4882                         {
4883                                 $$.type_enum = ECPGt_interval;
4884                                 $$.type_str = make_str("Interval");
4885                                 $$.type_dimension = make_str("-1");
4886                                 $$.type_index = make_str("-1");
4887                                 $$.type_sizeof = NULL;
4888                         }
4889                         else if (strcmp($1, "datetime") == 0)
4890                         {
4891                                 $$.type_enum = ECPGt_timestamp;
4892                                 $$.type_str = make_str("Timestamp");
4893                                 $$.type_dimension = make_str("-1");
4894                                 $$.type_index = make_str("-1");
4895                                 $$.type_sizeof = NULL;
4896                         }
4897                         else
4898                         {
4899                                 /* this is for typedef'ed types */
4900                                 struct typedefs *this = get_typedef($1);
4901
4902                                 $$.type_str = (this->type->type_enum == ECPGt_varchar) ? EMPTY : mm_strdup(this->name);
4903                                 $$.type_enum = this->type->type_enum;
4904                                 $$.type_dimension = this->type->type_dimension;
4905                                 $$.type_index = this->type->type_index;
4906                                 $$.type_sizeof = this->type->type_sizeof;
4907                                 struct_member_list[struct_level] = ECPGstruct_member_dup(this->struct_member_list);
4908                         }
4909                 }
4910                 | s_struct_union_symbol
4911                 {
4912                         /* this is for named structs/unions */
4913                         char *name;
4914                         struct typedefs *this;
4915                         bool forward = (forward_name != NULL && strcmp($1.symbol, forward_name) == 0 && strcmp($1.su, "struct") == 0);
4916
4917                         name = cat2_str($1.su, $1.symbol);
4918                         /* Do we have a forward definition? */
4919                         if (!forward)
4920                         {
4921                                 /* No */
4922
4923                                 this = get_typedef(name);
4924                                 $$.type_str = mm_strdup(this->name);
4925                                 $$.type_enum = this->type->type_enum;
4926                                 $$.type_dimension = this->type->type_dimension;
4927                                 $$.type_index = this->type->type_index;
4928                                 $$.type_sizeof = this->type->type_sizeof;
4929                                 struct_member_list[struct_level] = ECPGstruct_member_dup(this->struct_member_list);
4930                                 free(name);
4931                         }
4932                         else
4933                         {
4934                                 $$.type_str = name;
4935                                 $$.type_enum = ECPGt_long;
4936                                 $$.type_dimension = make_str("-1");
4937                                 $$.type_index = make_str("-1");
4938                                 $$.type_sizeof = make_str("");
4939                                 struct_member_list[struct_level] = NULL;
4940                         }
4941                 }
4942                 ;
4943
4944 enum_type: SQL_ENUM symbol enum_definition
4945                         { $$ = cat_str(3, make_str("enum"), $2, $3); }
4946                 | SQL_ENUM enum_definition
4947                         { $$ = cat2_str(make_str("enum"), $2); }
4948                 | SQL_ENUM symbol
4949                         { $$ = cat2_str(make_str("enum"), $2); }
4950                 ;
4951
4952 enum_definition: '{' c_list '}'
4953                         { $$ = cat_str(3, make_str("{"), $2, make_str("}")); };
4954
4955 struct_union_type_with_symbol: s_struct_union_symbol
4956                 {
4957                         struct_member_list[struct_level++] = NULL;
4958                         if (struct_level >= STRUCT_DEPTH)
4959                                  mmerror(PARSE_ERROR, ET_ERROR, "Too many levels in nested structure/union definition");
4960                         forward_name = mm_strdup($1.symbol);
4961                 }
4962                 '{' variable_declarations '}'
4963                 {
4964                         ECPGfree_struct_member(struct_member_list[struct_level]);
4965                         struct_member_list[struct_level] = NULL;
4966                         free(actual_storage[struct_level--]);
4967                         if (strncmp($1.su, "struct", sizeof("struct")-1) == 0)
4968                                 $$.type_enum = ECPGt_struct;
4969                         else
4970                                 $$.type_enum = ECPGt_union;
4971                         $$.type_str = cat2_str($1.su, $1.symbol);
4972                         $$.type_sizeof = cat_str(4, mm_strdup($$.type_str), make_str("{"), $4, make_str("}"));
4973                         free(forward_name);
4974                         forward_name = NULL;
4975                 }
4976                 ;
4977
4978 struct_union_type: struct_union_type_with_symbol        { $$ = $1.type_sizeof; }
4979                 | s_struct_union
4980                 {
4981                         struct_member_list[struct_level++] = NULL;
4982                         if (struct_level >= STRUCT_DEPTH)
4983                                  mmerror(PARSE_ERROR, ET_ERROR, "Too many levels in nested structure/union definition");
4984                 }
4985                 '{' variable_declarations '}'
4986                 {
4987                         ECPGfree_struct_member(struct_member_list[struct_level]);
4988                         struct_member_list[struct_level] = NULL;
4989                         free(actual_storage[struct_level--]);
4990                         $$ = cat_str(4, $1, make_str("{"), $4, make_str("}"));
4991                 }
4992                 ;
4993
4994 s_struct_union_symbol: SQL_STRUCT symbol
4995                 {
4996                         $$.su = make_str("struct");
4997                         $$.symbol = $2;
4998                         ECPGstruct_sizeof = cat_str(3, make_str("sizeof("), cat2_str(mm_strdup($$.su), mm_strdup($$.symbol)), make_str(")"));
4999                 }
5000                 | UNION symbol
5001                 {
5002                         $$.su = make_str("union");
5003                         $$.symbol = $2;
5004                 }
5005                 ;
5006
5007 s_struct_union: SQL_STRUCT
5008                 {
5009                         ECPGstruct_sizeof = make_str(""); /* This must not be NULL to distinguish from simple types. */
5010                         $$ = make_str("struct");
5011                 }
5012                 | UNION         { $$ = make_str("union"); }
5013                 ;
5014
5015 simple_type: unsigned_type                                      { $$=$1; }
5016                 |       opt_signed signed_type                  { $$=$2; }
5017                 ;
5018
5019 unsigned_type: SQL_UNSIGNED SQL_SHORT           { $$ = ECPGt_unsigned_short; }
5020                 | SQL_UNSIGNED SQL_SHORT INT_P  { $$ = ECPGt_unsigned_short; }
5021                 | SQL_UNSIGNED                                          { $$ = ECPGt_unsigned_int; }
5022                 | SQL_UNSIGNED INT_P                            { $$ = ECPGt_unsigned_int; }
5023                 | SQL_UNSIGNED SQL_LONG                         { $$ = ECPGt_unsigned_long; }
5024                 | SQL_UNSIGNED SQL_LONG INT_P           { $$ = ECPGt_unsigned_long; }
5025                 | SQL_UNSIGNED SQL_LONG SQL_LONG
5026                 {
5027 #ifdef HAVE_LONG_LONG_INT_64
5028                         $$ = ECPGt_unsigned_long_long;
5029 #else
5030                         $$ = ECPGt_unsigned_long;
5031 #endif
5032                 }
5033                 | SQL_UNSIGNED SQL_LONG SQL_LONG INT_P
5034                 {
5035 #ifdef HAVE_LONG_LONG_INT_64
5036                         $$ = ECPGt_unsigned_long_long;
5037 #else
5038                         $$ = ECPGt_unsigned_long;
5039 #endif
5040                 }
5041                 | SQL_UNSIGNED CHAR_P                   { $$ = ECPGt_unsigned_char; }
5042                 ;
5043
5044 signed_type: SQL_SHORT                          { $$ = ECPGt_short; }
5045                 | SQL_SHORT INT_P                       { $$ = ECPGt_short; }
5046                 | INT_P                                 { $$ = ECPGt_int; }
5047                 | SQL_LONG                                      { $$ = ECPGt_long; }
5048                 | SQL_LONG INT_P                        { $$ = ECPGt_long; }
5049                 | SQL_LONG SQL_LONG
5050                 {
5051 #ifdef HAVE_LONG_LONG_INT_64
5052                         $$ = ECPGt_long_long;
5053 #else
5054                         $$ = ECPGt_long;
5055 #endif
5056                 }
5057                 | SQL_LONG SQL_LONG INT_P
5058                 {
5059 #ifdef HAVE_LONG_LONG_INT_64
5060                         $$ = ECPGt_long_long;
5061 #else
5062                         $$ = ECPGt_long;
5063 #endif
5064                 }
5065                 | SQL_BOOL                                      { $$ = ECPGt_bool; }
5066                 | CHAR_P                                        { $$ = ECPGt_char; }
5067                 ;
5068
5069 opt_signed: SQL_SIGNED
5070                 |       /* EMPTY */
5071                 ;
5072
5073 variable_list: variable
5074                         { $$ = $1; }
5075                 | variable_list ',' variable
5076                         { $$ = cat_str(3, $1, make_str(","), $3); }
5077                 ;
5078
5079 variable: opt_pointer ECPGColLabelCommon opt_array_bounds opt_initializer
5080                 {
5081                         struct ECPGtype * type;
5082                         char *dimension = $3.index1; /* dimension of array */
5083                         char *length = $3.index2;    /* length of string */
5084                         char dim[14L];
5085
5086                         adjust_array(actual_type[struct_level].type_enum, &dimension, &length, actual_type[struct_level].type_dimension, actual_type[struct_level].type_index, strlen($1));
5087
5088                         switch (actual_type[struct_level].type_enum)
5089                         {
5090                                 case ECPGt_struct:
5091                                 case ECPGt_union:
5092                                         if (atoi(dimension) < 0)
5093                                                 type = ECPGmake_struct_type(struct_member_list[struct_level], actual_type[struct_level].type_enum, actual_type[struct_level].type_sizeof);
5094                                         else
5095                                                 type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level], actual_type[struct_level].type_enum, actual_type[struct_level].type_sizeof), dimension);
5096
5097                                         $$ = cat_str(4, $1, mm_strdup($2), $3.str, $4);
5098                                         break;
5099
5100                                 case ECPGt_varchar:
5101                                         if (atoi(dimension) < 0)
5102                                                 type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
5103                                         else
5104                                                 type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
5105
5106                                         if (strcmp(dimension, "0") == 0 || abs(atoi(dimension)) == 1)
5107                                                         *dim = '\0';
5108                                         else
5109                                                         sprintf(dim, "[%s]", dimension);
5110                                         if (strcmp(length, "0") == 0)
5111                                                 mmerror(PARSE_ERROR, ET_ERROR, "pointer to varchar are not implemented");
5112
5113                                         if (strcmp(dimension, "0") == 0)
5114                                                 $$ = cat_str(7, mm_strdup(actual_storage[struct_level]), make2_str(make_str(" struct varchar_"), mm_strdup($2)), make_str(" { int len; char arr["), mm_strdup(length), make_str("]; } *"), mm_strdup($2), $4);
5115                                         else
5116                                            $$ = cat_str(8, mm_strdup(actual_storage[struct_level]), make2_str(make_str(" struct varchar_"), mm_strdup($2)), make_str(" { int len; char arr["), mm_strdup(length), make_str("]; } "), mm_strdup($2), mm_strdup(dim), $4);
5117                                         break;
5118
5119                                 case ECPGt_char:
5120                                 case ECPGt_unsigned_char:
5121                                         if (atoi(dimension) == -1)
5122                                                 type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
5123                                         else
5124                                                 type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
5125
5126                                         $$ = cat_str(4, $1, mm_strdup($2), $3.str, $4);
5127                                         break;
5128
5129                                 default:
5130                                         if (atoi(dimension) < 0)
5131                                                 type = ECPGmake_simple_type(actual_type[struct_level].type_enum, make_str("1"));
5132                                         else
5133                                                 type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, make_str("1")), dimension);
5134
5135                                         $$ = cat_str(4, $1, mm_strdup($2), $3.str, $4);
5136                                         break;
5137                         }
5138
5139                         if (struct_level == 0)
5140                                 new_variable($2, type, braces_open);
5141                         else
5142                                 ECPGmake_struct_member($2, type, &(struct_member_list[struct_level - 1]));
5143
5144                         free($2);
5145                 }
5146                 ;
5147
5148 opt_initializer: /*EMPTY*/
5149                         { $$ = EMPTY; }
5150                 | '=' c_term
5151                 {
5152                         initializer = 1;
5153                         $$ = cat2_str(make_str("="), $2);
5154                 }
5155                 ;
5156
5157 opt_pointer: /*EMPTY*/                          { $$ = EMPTY; }
5158                 | '*'                                           { $$ = make_str("*"); }
5159                 | '*' '*'                                       { $$ = make_str("**"); }
5160                 ;
5161
5162 /*
5163  * As long as the prepare statement is not supported by the backend, we will
5164  * try to simulate it here so we get dynamic SQL
5165  */
5166 ECPGDeclare: DECLARE STATEMENT ident
5167                 {
5168                         /* this is only supported for compatibility */
5169                         $$ = cat_str(3, make_str("/* declare statement"), $3, make_str("*/"));
5170                 }
5171                 ;
5172 /*
5173  * the exec sql disconnect statement: disconnect from the given database
5174  */
5175 ECPGDisconnect: SQL_DISCONNECT dis_name { $$ = $2; }
5176                 ;
5177
5178 dis_name: connection_object                             { $$ = $1; }
5179                 | SQL_CURRENT                                           { $$ = make_str("\"CURRENT\""); }
5180                 | ALL                                                   { $$ = make_str("\"ALL\""); }
5181                 | /*EMPTY*/                                             { $$ = make_str("\"CURRENT\""); }
5182                 ;
5183
5184 connection_object: connection_target    { $$ = $1; }
5185                 | DEFAULT                                               { $$ = make_str("\"DEFAULT\""); }
5186                 ;
5187
5188 /*
5189  * execute a given string as sql command
5190  */
5191 ECPGExecute : EXECUTE IMMEDIATE execstring
5192                 {
5193                         struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
5194
5195                         thisquery->type = &ecpg_query;
5196                         thisquery->brace_level = 0;
5197                         thisquery->next = NULL;
5198                         thisquery->name = $3;
5199
5200                         add_variable(&argsinsert, thisquery, &no_indicator);
5201
5202                         $$ = make_str("?");
5203                 }
5204                 | EXECUTE name
5205                 {
5206                         struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
5207
5208                         thisquery->type = &ecpg_query;
5209                         thisquery->brace_level = 0;
5210                         thisquery->next = NULL;
5211                         thisquery->name = (char *) mm_alloc(sizeof("ECPGprepared_statement(\"\")") + strlen($2));
5212                         sprintf(thisquery->name, "ECPGprepared_statement(\"%s\")", $2);
5213
5214                         add_variable(&argsinsert, thisquery, &no_indicator);
5215                 }
5216                 execute_rest
5217                 {
5218                         $$ = make_str("?");
5219                 }
5220                 ;
5221
5222 execute_rest:   ecpg_using ecpg_into    { $$ = EMPTY; }
5223                 | ecpg_into ecpg_using  { $$ = EMPTY; }
5224                 | ecpg_using            { $$ = EMPTY; }
5225                 | ecpg_into             { $$ = EMPTY; }
5226                 | /* EMPTY */           { $$ = EMPTY; }
5227                 ;
5228
5229 execstring: char_variable
5230                         { $$ = $1; }
5231                 |       CSTRING
5232                         { $$ = make3_str(make_str("\""), $1, make_str("\"")); }
5233                 ;
5234
5235 /*
5236  * the exec sql free command to deallocate a previously
5237  * prepared statement
5238  */
5239 ECPGFree:       SQL_FREE name   { $$ = $2; };
5240
5241 /*
5242  * open is an open cursor, at the moment this has to be removed
5243  */
5244 ECPGOpen: SQL_OPEN name opt_ecpg_using { $$ = $2; };
5245
5246 opt_ecpg_using: /*EMPTY*/               { $$ = EMPTY; }
5247                 | ecpg_using            { $$ = $1; }
5248                 ;
5249
5250 ecpg_using:     USING using_list        { $$ = EMPTY; }
5251                 ;
5252
5253 using_descriptor: USING opt_sql SQL_DESCRIPTOR quoted_ident_stringvar
5254                 {
5255                         add_variable(&argsresult, descriptor_variable($4,0), &no_indicator);
5256                         $$ = EMPTY;
5257                 }
5258                 ;
5259
5260 into_descriptor: INTO opt_sql SQL_DESCRIPTOR quoted_ident_stringvar
5261                 {
5262                         add_variable(&argsresult, descriptor_variable($4,0), &no_indicator);
5263                         $$ = EMPTY;
5264                 }
5265                 ;
5266
5267 opt_sql: /*EMPTY*/ | SQL_SQL;
5268
5269 ecpg_into_using: ecpg_into              { $$ = EMPTY; }
5270                 | using_descriptor      { $$ = $1; }
5271                 ;
5272
5273 ecpg_into: INTO into_list               { $$ = EMPTY; }
5274                 | into_descriptor       { $$ = $1; }
5275                 ;
5276
5277 using_list: UsingConst | UsingConst ',' using_list;
5278
5279 UsingConst: AllConst
5280                 {
5281                         if ($1[1] != '?') /* found a constant */
5282                         {
5283                                 char *length = mm_alloc(sizeof("INT_MAX")+1);
5284
5285                                 sprintf(length, "%d", strlen($1));
5286                                 add_variable(&argsinsert, new_variable($1, ECPGmake_simple_type(ECPGt_const, length), 0), &no_indicator);
5287                         }
5288                 }
5289                 ;
5290
5291 /*
5292  * As long as the prepare statement is not supported by the backend, we will
5293  * try to simulate it here so we get dynamic SQL
5294  *
5295  * It is supported now but not usable yet by ecpg.
5296  */
5297 ECPGPrepare: PREPARE name FROM execstring
5298                         { $$ = cat2_str(make3_str(make_str("\""), $2, make_str("\",")), $4); }
5299                 ;
5300 /*
5301  * We accept descibe but do nothing with it so far.
5302  */
5303 ECPGDescribe: SQL_DESCRIBE INPUT_P name using_descriptor
5304         {
5305                 mmerror(PARSE_ERROR, ET_WARNING, "using unsupported describe statement.\n");
5306                 $$ = (char *) mm_alloc(sizeof("1, ECPGprepared_statement(\"\")") + strlen($3));
5307                 sprintf($$, "1, ECPGprepared_statement(\"%s\")", $3);
5308         }
5309         | SQL_DESCRIBE opt_output name using_descriptor
5310         {
5311                 mmerror(PARSE_ERROR, ET_WARNING, "using unsupported describe statement.\n");
5312                 $$ = (char *) mm_alloc(sizeof("0, ECPGprepared_statement(\"\")") + strlen($3));
5313                 sprintf($$, "0, ECPGprepared_statement(\"%s\")", $3);
5314         }
5315         | SQL_DESCRIBE opt_output name into_descriptor
5316         {
5317                 mmerror(PARSE_ERROR, ET_WARNING, "using unsupported describe statement.\n");
5318                 $$ = (char *) mm_alloc(sizeof("0, ECPGprepared_statement(\"\")") + strlen($3));
5319                 sprintf($$, "0, ECPGprepared_statement(\"%s\")", $3);
5320         }
5321         ;
5322
5323 opt_output:     SQL_OUTPUT      { $$ = make_str("output"); }
5324         |       /* EMPTY */     { $$ = EMPTY; }
5325         ;
5326
5327 /*
5328  * dynamic SQL: descriptor based access
5329  *      written by Christof Petig <christof.petig@wtal.de>
5330  */
5331
5332 /*
5333  * deallocate a descriptor
5334  */
5335 ECPGDeallocateDescr:    DEALLOCATE SQL_DESCRIPTOR quoted_ident_stringvar
5336                 {
5337                         drop_descriptor($3,connection);
5338                         $$ = $3;
5339                 }
5340                 ;
5341
5342 /*
5343  * allocate a descriptor
5344  */
5345 ECPGAllocateDescr:      SQL_ALLOCATE SQL_DESCRIPTOR quoted_ident_stringvar
5346                 {
5347                         add_descriptor($3,connection);
5348                         $$ = $3;
5349                 };
5350
5351 /*
5352  * read from descriptor
5353  */
5354
5355 ECPGGetDescHeaderItem: CVARIABLE '=' desc_header_item
5356                         { push_assignment($1, $3); }
5357                 ;
5358
5359 desc_header_item:       SQL_COUNT                       { $$ = ECPGd_count; }
5360                 ;
5361
5362 ECPGGetDescItem: CVARIABLE '=' descriptor_item  { push_assignment($1, $3); };
5363
5364 descriptor_item:        SQL_CARDINALITY         { $$ = ECPGd_cardinality; }
5365                 | SQL_DATA                                              { $$ = ECPGd_data; }
5366                 | SQL_DATETIME_INTERVAL_CODE    { $$ = ECPGd_di_code; }
5367                 | SQL_DATETIME_INTERVAL_PRECISION { $$ = ECPGd_di_precision; }
5368                 | SQL_INDICATOR                                 { $$ = ECPGd_indicator; }
5369                 | SQL_KEY_MEMBER                                { $$ = ECPGd_key_member; }
5370                 | SQL_LENGTH                                    { $$ = ECPGd_length; }
5371                 | SQL_NAME                                              { $$ = ECPGd_name; }
5372                 | SQL_NULLABLE                                  { $$ = ECPGd_nullable; }
5373                 | SQL_OCTET_LENGTH                              { $$ = ECPGd_octet; }
5374                 | PRECISION                                             { $$ = ECPGd_precision; }
5375                 | SQL_RETURNED_LENGTH                   { $$ = ECPGd_length; }
5376                 | SQL_RETURNED_OCTET_LENGTH             { $$ = ECPGd_ret_octet; }
5377                 | SQL_SCALE                                             { $$ = ECPGd_scale; }
5378                 | TYPE_P                                                { $$ = ECPGd_type; }
5379                 ;
5380
5381 ECPGGetDescHeaderItems: ECPGGetDescHeaderItem
5382                 | ECPGGetDescHeaderItems ',' ECPGGetDescHeaderItem
5383                 ;
5384
5385 ECPGGetDescItems: ECPGGetDescItem
5386                 | ECPGGetDescItems ',' ECPGGetDescItem
5387                 ;
5388
5389 ECPGGetDescriptorHeader:        GET SQL_DESCRIPTOR quoted_ident_stringvar
5390                                                                 ECPGGetDescHeaderItems
5391                         {  $$ = $3; }
5392                 ;
5393
5394 ECPGGetDescriptor:      GET SQL_DESCRIPTOR quoted_ident_stringvar SQL_VALUE CVARIABLE ECPGGetDescItems
5395                         {  $$.str = $5; $$.name = $3; }
5396                 |       GET SQL_DESCRIPTOR quoted_ident_stringvar SQL_VALUE Iconst ECPGGetDescItems
5397                         {  $$.str = $5; $$.name = $3; }
5398                 ;
5399
5400 /*
5401  * for compatibility with ORACLE we will also allow the keyword RELEASE
5402  * after a transaction statement to disconnect from the database.
5403  */
5404
5405 ECPGRelease: TransactionStmt SQL_RELEASE
5406                 {
5407                         if (strcmp($1, "begin") == 0)
5408                                                         mmerror(PARSE_ERROR, ET_ERROR, "RELEASE does not make sense when beginning a transaction");
5409
5410                         fprintf(yyout, "ECPGtrans(__LINE__, %s, \"%s\");",
5411                                         connection ? connection : "NULL", $1);
5412                         whenever_action(0);
5413                         fprintf(yyout, "ECPGdisconnect(__LINE__, %s);",
5414                                         connection ? connection : "\"CURRENT\"");
5415                         whenever_action(0);
5416                         free($1);
5417                 }
5418                 ;
5419
5420 /*
5421  * set/reset the automatic transaction mode, this needs a differnet handling
5422  * as the other set commands
5423  */
5424 ECPGSetAutocommit:      SET SQL_AUTOCOMMIT '=' on_off   { $$ = $4; }
5425                 |  SET SQL_AUTOCOMMIT TO on_off   { $$ = $4; }
5426                 ;
5427
5428 on_off: ON                              { $$ = make_str("on"); }
5429                 | OFF                   { $$ = make_str("off"); }
5430                 ;
5431
5432 /*
5433  * set the actual connection, this needs a differnet handling as the other
5434  * set commands
5435  */
5436 ECPGSetConnection:      SET SQL_CONNECTION TO connection_object { $$ = $4; }
5437                 | SET SQL_CONNECTION '=' connection_object { $$ = $4; }
5438                 | SET SQL_CONNECTION  connection_object { $$ = $3; }
5439                 ;
5440
5441 /*
5442  * define a new type for embedded SQL
5443  */
5444 ECPGTypedef: TYPE_P
5445                 {
5446                         /* reset this variable so we see if there was */
5447                         /* an initializer specified */
5448                         initializer = 0;
5449                 }
5450                 ColLabel IS var_type opt_array_bounds opt_reference
5451                 {
5452                         /* add entry to list */
5453                         struct typedefs *ptr, *this;
5454                         char *dimension = $6.index1;
5455                         char *length = $6.index2;
5456
5457                         if (($5.type_enum == ECPGt_struct ||
5458                                  $5.type_enum == ECPGt_union) &&
5459                                 initializer == 1)
5460                                 mmerror(PARSE_ERROR, ET_ERROR, "Initializer not allowed in EXEC SQL TYPE command");
5461                         else
5462                         {
5463                                 for (ptr = types; ptr != NULL; ptr = ptr->next)
5464                                 {
5465                                         if (strcmp($3, ptr->name) == 0)
5466                                         {
5467                                                 /* re-definition is a bug */
5468                                                 snprintf(errortext, sizeof(errortext), "Type %s already defined", $3);
5469                                                 mmerror(PARSE_ERROR, ET_ERROR, errortext);
5470                                         }
5471                                 }
5472
5473                                 adjust_array($5.type_enum, &dimension, &length, $5.type_dimension, $5.type_index, *$7?1:0);
5474
5475                                 this = (struct typedefs *) mm_alloc(sizeof(struct typedefs));
5476
5477                                 /* initial definition */
5478                                 this->next = types;
5479                                 this->name = $3;
5480                                 this->type = (struct this_type *) mm_alloc(sizeof(struct this_type));
5481                                 this->type->type_enum = $5.type_enum;
5482                                 this->type->type_str = mm_strdup($3);
5483                                 this->type->type_dimension = dimension; /* dimension of array */
5484                                 this->type->type_index = length;        /* length of string */
5485                                 this->type->type_sizeof = ECPGstruct_sizeof;
5486                                 this->struct_member_list = ($5.type_enum == ECPGt_struct || $5.type_enum == ECPGt_union) ?
5487                                         struct_member_list[struct_level] : NULL;
5488
5489                                 if ($5.type_enum != ECPGt_varchar &&
5490                                         $5.type_enum != ECPGt_char &&
5491                                         $5.type_enum != ECPGt_unsigned_char &&
5492                                         atoi(this->type->type_index) >= 0)
5493                                         mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
5494
5495                                 types = this;
5496                         }
5497
5498                         if (auto_create_c == false)
5499                                 $$ = cat_str(7, make_str("/* exec sql type"), mm_strdup($3), make_str("is"), mm_strdup($5.type_str), mm_strdup($6.str), $7, make_str("*/"));
5500                         else
5501                                 $$ = cat_str(6, make_str("typedef "), mm_strdup($5.type_str), *$7?make_str("*"):make_str(""), mm_strdup($6.str), mm_strdup($3), make_str(";"));
5502                 }
5503                 ;
5504
5505 opt_reference: SQL_REFERENCE            { $$ = make_str("reference"); }
5506                 | /*EMPTY*/                                     { $$ = EMPTY; }
5507                 ;
5508
5509 /*
5510  * define the type of one variable for embedded SQL
5511  */
5512 ECPGVar: SQL_VAR
5513                 {
5514                         /* reset this variable so we see if there was */
5515                         /* an initializer specified */
5516                         initializer = 0;
5517                 }
5518                 ColLabel IS var_type opt_array_bounds opt_reference
5519                 {
5520                         struct variable *p = find_variable($3);
5521                         char *dimension = $6.index1;
5522                         char *length = $6.index2;
5523                         struct ECPGtype * type;
5524
5525                         if (($5.type_enum == ECPGt_struct ||
5526                                  $5.type_enum == ECPGt_union) &&
5527                                 initializer == 1)
5528                                 mmerror(PARSE_ERROR, ET_ERROR, "Initializer not allowed in EXEC SQL VAR command");
5529                         else
5530                         {
5531                                 adjust_array($5.type_enum, &dimension, &length, $5.type_dimension, $5.type_index, *$7?1:0);
5532
5533                                 switch ($5.type_enum)
5534                                 {
5535                                         case ECPGt_struct:
5536                                         case ECPGt_union:
5537                                                 if (atoi(dimension) < 0)
5538                                                         type = ECPGmake_struct_type(struct_member_list[struct_level], $5.type_enum, $5.type_sizeof);
5539                                                 else
5540                                                         type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level], $5.type_enum,$5.type_sizeof), dimension);
5541                                                 break;
5542
5543                                         case ECPGt_varchar:
5544                                                 if (atoi(dimension) == -1)
5545                                                         type = ECPGmake_simple_type($5.type_enum, length);
5546                                                 else
5547                                                         type = ECPGmake_array_type(ECPGmake_simple_type($5.type_enum, length), dimension);
5548                                                 break;
5549
5550                                         case ECPGt_char:
5551                                         case ECPGt_unsigned_char:
5552                                                 if (atoi(dimension) == -1)
5553                                                         type = ECPGmake_simple_type($5.type_enum, length);
5554                                                 else
5555                                                         type = ECPGmake_array_type(ECPGmake_simple_type($5.type_enum, length), dimension);
5556                                                 break;
5557
5558                                         default:
5559                                                 if (atoi(length) >= 0)
5560                                                         mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
5561
5562                                                 if (atoi(dimension) < 0)
5563                                                         type = ECPGmake_simple_type($5.type_enum, make_str("1"));
5564                                                 else
5565                                                         type = ECPGmake_array_type(ECPGmake_simple_type($5.type_enum, make_str("1")), dimension);
5566                                                 break;
5567                                 }
5568
5569                                 ECPGfree_type(p->type);
5570                                 p->type = type;
5571                         }
5572
5573                         $$ = cat_str(7, make_str("/* exec sql var"), mm_strdup($3), make_str("is"), mm_strdup($5.type_str), mm_strdup($6.str), $7, make_str("*/"));
5574                 }
5575                 ;
5576
5577 /*
5578  * whenever statement: decide what to do in case of error/no data found
5579  * according to SQL standards we lack: SQLSTATE, CONSTRAINT and SQLEXCEPTION
5580  */
5581 ECPGWhenever: SQL_WHENEVER SQL_SQLERROR action
5582                 {
5583                         when_error.code = $<action>3.code;
5584                         when_error.command = $<action>3.command;
5585                         $$ = cat_str(3, make_str("/* exec sql whenever sqlerror "), $3.str, make_str("; */\n"));
5586                 }
5587                 | SQL_WHENEVER NOT SQL_FOUND action
5588                 {
5589                         when_nf.code = $<action>4.code;
5590                         when_nf.command = $<action>4.command;
5591                         $$ = cat_str(3, make_str("/* exec sql whenever not found "), $4.str, make_str("; */\n"));
5592                 }
5593                 | SQL_WHENEVER SQL_SQLWARNING action
5594                 {
5595                         when_warn.code = $<action>3.code;
5596                         when_warn.command = $<action>3.command;
5597                         $$ = cat_str(3, make_str("/* exec sql whenever sql_warning "), $3.str, make_str("; */\n"));
5598                 }
5599                 ;
5600
5601 action : SQL_CONTINUE
5602                 {
5603                         $<action>$.code = W_NOTHING;
5604                         $<action>$.command = NULL;
5605                         $<action>$.str = make_str("continue");
5606                 }
5607                 | SQL_SQLPRINT
5608                 {
5609                         $<action>$.code = W_SQLPRINT;
5610                         $<action>$.command = NULL;
5611                         $<action>$.str = make_str("sqlprint");
5612                 }
5613                 | SQL_STOP
5614                 {
5615                         $<action>$.code = W_STOP;
5616                         $<action>$.command = NULL;
5617                         $<action>$.str = make_str("stop");
5618                 }
5619                 | SQL_GOTO name
5620                 {
5621                         $<action>$.code = W_GOTO;
5622                         $<action>$.command = strdup($2);
5623                         $<action>$.str = cat2_str(make_str("goto "), $2);
5624                 }
5625                 | SQL_GO TO name
5626                 {
5627                         $<action>$.code = W_GOTO;
5628                         $<action>$.command = strdup($3);
5629                         $<action>$.str = cat2_str(make_str("goto "), $3);
5630                 }
5631                 | DO name '(' c_args ')'
5632                 {
5633                         $<action>$.code = W_DO;
5634                         $<action>$.command = cat_str(4, $2, make_str("("), $4, make_str(")"));
5635                         $<action>$.str = cat2_str(make_str("do"), mm_strdup($<action>$.command));
5636                 }
5637                 | DO SQL_BREAK
5638                 {
5639                         $<action>$.code = W_BREAK;
5640                         $<action>$.command = NULL;
5641                         $<action>$.str = make_str("break");
5642                 }
5643                 | SQL_CALL name '(' c_args ')'
5644                 {
5645                         $<action>$.code = W_DO;
5646                         $<action>$.command = cat_str(4, $2, make_str("("), $4, make_str(")"));
5647                         $<action>$.str = cat2_str(make_str("call"), mm_strdup($<action>$.command));
5648                 }
5649                 | SQL_CALL name
5650                 {
5651                         $<action>$.code = W_DO;
5652                         $<action>$.command = cat_str(3, $2, make_str("("), make_str(")"));
5653                         $<action>$.str = cat2_str(make_str("call"), mm_strdup($<action>$.command));
5654                 }
5655                 ;
5656
5657 /* some other stuff for ecpg */
5658
5659 /* additional unreserved keywords */
5660 ECPGKeywords: ECPGKeywords_vanames      { $$ = $1; }
5661                 | ECPGKeywords_rest     { $$ = $1; }
5662                 ;
5663
5664 ECPGKeywords_vanames:  SQL_BREAK                { $$ = make_str("break"); }
5665                 | SQL_CALL                      { $$ = make_str("call"); }
5666                 | SQL_CARDINALITY               { $$ = make_str("cardinality"); }
5667                 | SQL_CONTINUE                  { $$ = make_str("continue"); }
5668                 | SQL_COUNT                     { $$ = make_str("count"); }
5669                 | SQL_DATA                      { $$ = make_str("data"); }
5670                 | SQL_DATETIME_INTERVAL_CODE    { $$ = make_str("datetime_interval_code"); }
5671                 | SQL_DATETIME_INTERVAL_PRECISION       { $$ = make_str("datetime_interval_precision"); }
5672                 | SQL_FOUND                     { $$ = make_str("found"); }
5673                 | SQL_GO                        { $$ = make_str("go"); }
5674                 | SQL_GOTO                      { $$ = make_str("goto"); }
5675                 | SQL_IDENTIFIED                { $$ = make_str("identified"); }
5676                 | SQL_INDICATOR                 { $$ = make_str("indicator"); }
5677                 | SQL_KEY_MEMBER                { $$ = make_str("key_member"); }
5678                 | SQL_LENGTH                    { $$ = make_str("length"); }
5679                 | SQL_NAME                      { $$ = make_str("name"); }
5680                 | SQL_NULLABLE                  { $$ = make_str("nullable"); }
5681                 | SQL_OCTET_LENGTH              { $$ = make_str("octet_length"); }
5682                 | SQL_RELEASE                   { $$ = make_str("release"); }
5683                 | SQL_RETURNED_LENGTH           { $$ = make_str("returned_length"); }
5684                 | SQL_RETURNED_OCTET_LENGTH     { $$ = make_str("returned_octet_length"); }
5685                 | SQL_SCALE                     { $$ = make_str("scale"); }
5686                 | SQL_SECTION                   { $$ = make_str("section"); }
5687                 | SQL_SQLERROR                  { $$ = make_str("sqlerror"); }
5688                 | SQL_SQLPRINT                  { $$ = make_str("sqlprint"); }
5689                 | SQL_SQLWARNING                { $$ = make_str("sqlwarning"); }
5690                 | SQL_STOP                      { $$ = make_str("stop"); }
5691                 ;
5692
5693 ECPGKeywords_rest:  SQL_CONNECT                 { $$ = make_str("connect"); }
5694                 | SQL_DESCRIBE                  { $$ = make_str("describe"); }
5695                 | SQL_DISCONNECT                { $$ = make_str("disconnect"); }
5696                 | SQL_OPEN                      { $$ = make_str("open"); }
5697                 | SQL_VAR                       { $$ = make_str("var"); }
5698                 | SQL_WHENEVER                  { $$ = make_str("whenever"); }
5699                 ;
5700
5701 /* additional keywords that can be SQL type names (but not ECPGColLabels) */
5702 ECPGTypeName:  SQL_BOOL                         { $$ = make_str("bool"); }
5703                 | SQL_LONG                      { $$ = make_str("long"); }
5704                 | SQL_OUTPUT                    { $$ = make_str("output"); }
5705                 | SQL_SHORT                     { $$ = make_str("short"); }
5706                 | SQL_STRUCT                    { $$ = make_str("struct"); }
5707                 | SQL_SIGNED                    { $$ = make_str("signed"); }
5708                 | SQL_UNSIGNED                  { $$ = make_str("unsigned"); }
5709                 ;
5710
5711 symbol: ColLabel                                { $$ = $1; }
5712                 ;
5713
5714 /*
5715  * Name classification hierarchy.
5716  *
5717  * IDENT is the lexeme returned by the lexer for identifiers that match
5718  * no known keyword.  In most cases, we can accept certain keywords as
5719  * names, not only IDENTs.      We prefer to accept as many such keywords
5720  * as possible to minimize the impact of "reserved words" on programmers.
5721  * So, we divide names into several possible classes.  The classification
5722  * is chosen in part to make keywords acceptable as names wherever possible.
5723  */
5724
5725 /* Column identifier --- names that can be column, table, etc names.
5726  */
5727 ColId:  ident                                           { $$ = $1; }
5728                 | unreserved_keyword                    { $$ = $1; }
5729                 | col_name_keyword                      { $$ = $1; }
5730                 | ECPGKeywords                          { $$ = $1; }
5731                 | CHAR_P                                { $$ = make_str("char"); }
5732                 ;
5733
5734 /* Type identifier --- names that can be type names.
5735  */
5736 type_name:      ident                                   { $$ = $1; }
5737                 | unreserved_keyword                    { $$ = $1; }
5738                 | ECPGKeywords                          { $$ = $1; }
5739                 | ECPGTypeName                          { $$ = $1; }
5740                 ;
5741
5742 /* Function identifier --- names that can be function names.
5743  */
5744 function_name:  ident                                   { $$ = $1; }
5745                 | unreserved_keyword                    { $$ = $1; }
5746                 | func_name_keyword                     { $$ = $1; }
5747                 | ECPGKeywords                          { $$ = $1; }
5748                 ;
5749
5750 /* Column label --- allowed labels in "AS" clauses.
5751  * This presently includes *all* Postgres keywords.
5752  */
5753 ColLabel:  ECPGColLabel                         { $$ = $1; }
5754                 | ECPGTypeName                  { $$ = $1; }
5755                 | CHAR_P                        { $$ = make_str("char"); }
5756                 | INPUT_P                       { $$ = make_str("input"); }
5757                 | INT_P                         { $$ = make_str("int"); }
5758                 | UNION                         { $$ = make_str("union"); }
5759                 ;
5760
5761 ECPGColLabelCommon:  ident                              { $$ = $1; }
5762                 | col_name_keyword                      { $$ = $1; }
5763                 | func_name_keyword                     { $$ = $1; }
5764                 | ECPGKeywords_vanames                  { $$ = $1; }
5765                 ;
5766
5767 ECPGColLabel:  ECPGColLabelCommon                       { $$ = $1; }
5768                 | unreserved_keyword                    { $$ = $1; }
5769                 | reserved_keyword                      { $$ = $1; }
5770                 | ECPGKeywords_rest                     { $$ = $1; }
5771                 ;
5772
5773 /*
5774  * Keyword classification lists.  Generally, every keyword present in
5775  * the Postgres grammar should appear in exactly one of these lists.
5776  *
5777  * Put a new keyword into the first list that it can go into without causing
5778  * shift or reduce conflicts.  The earlier lists define "less reserved"
5779  * categories of keywords.
5780  */
5781
5782 /* "Unreserved" keywords --- available for use as any kind of name.
5783  */
5784 unreserved_keyword:
5785                   ABORT_P                       { $$ = make_str("abort"); }
5786                 | ABSOLUTE_P                    { $$ = make_str("absolute"); }
5787                 | ACCESS                        { $$ = make_str("access"); }
5788                 | ACTION                        { $$ = make_str("action"); }
5789                 | ADD                           { $$ = make_str("add"); }
5790                 | AFTER                         { $$ = make_str("after"); }
5791                 | AGGREGATE                     { $$ = make_str("aggregate"); }
5792                 | ALTER                         { $$ = make_str("alter"); }
5793                 | ASSERTION                     { $$ = make_str("assertion"); }
5794                 | ASSIGNMENT                    { $$ = make_str("assignment"); }
5795                 | AT                            { $$ = make_str("at"); }
5796                 | BACKWARD                      { $$ = make_str("backward"); }
5797                 | BEFORE                        { $$ = make_str("before"); }
5798                 | BEGIN_P                       { $$ = make_str("begin"); }
5799                 | BY                            { $$ = make_str("by"); }
5800                 | CACHE                         { $$ = make_str("cache"); }
5801                 | CASCADE                       { $$ = make_str("cascade"); }
5802                 | CHAIN                         { $$ = make_str("chain"); }
5803                 | CHARACTERISTICS               { $$ = make_str("characteristics"); }
5804                 | CHECKPOINT                    { $$ = make_str("checkpoint"); }
5805                 | CLASS                         { $$ = make_str("class"); }
5806                 | CLOSE                         { $$ = make_str("close"); }
5807                 | CLUSTER                       { $$ = make_str("cluster"); }
5808                 | COMMENT                       { $$ = make_str("comment"); }
5809                 | COMMIT                        { $$ = make_str("commit"); }
5810                 | COMMITTED                     { $$ = make_str("committed"); }
5811                 | CONSTRAINTS                   { $$ = make_str("constraints"); }
5812                 | CONVERSION_P                  { $$ = make_str("conversion"); }
5813                 | COPY                          { $$ = make_str("copy"); }
5814                 | CREATEDB                      { $$ = make_str("createdb"); }
5815                 | CREATEUSER                    { $$ = make_str("createuser"); }
5816                 | CURSOR                        { $$ = make_str("cursor"); }
5817                 | CYCLE                         { $$ = make_str("cycle"); }
5818                 | DATABASE                      { $$ = make_str("database"); }
5819                 | DAY_P                         { $$ = make_str("day"); }
5820                 | DEALLOCATE                    { $$ = make_str("deallocate"); }
5821                 | DECLARE                       { $$ = make_str("declare"); }
5822                 | DEFAULTS                      { $$ = make_str("defaults"); }
5823                 | DEFERRED                      { $$ = make_str("deferred"); }
5824                 | DELETE_P                      { $$ = make_str("delete"); }
5825                 | DELIMITER                     { $$ = make_str("delimiter"); }
5826                 | DELIMITERS                    { $$ = make_str("delimiters"); }
5827                 | DOMAIN_P                      { $$ = make_str("domain"); }
5828                 | DOUBLE_P                      { $$ = make_str("double"); }
5829                 | DROP                          { $$ = make_str("drop"); }
5830                 | EACH                          { $$ = make_str("each"); }
5831                 | ENCODING                      { $$ = make_str("encoding"); }
5832                 | ENCRYPTED                     { $$ = make_str("encrypted"); }
5833                 | ESCAPE                        { $$ = make_str("escape"); }
5834                 | EXCLUDING                     { $$ = make_str("excluding"); }
5835                 | EXCLUSIVE                     { $$ = make_str("exclusive"); }
5836                 | EXECUTE                       { $$ = make_str("execute"); }
5837                 | EXPLAIN                       { $$ = make_str("explain"); }
5838                 | FETCH                         { $$ = make_str("fetch"); }
5839                 | FIRST_P                       { $$ = make_str("first"); }
5840                 | FORCE                         { $$ = make_str("force"); }
5841                 | FORWARD                       { $$ = make_str("forward"); }
5842                 | FUNCTION                      { $$ = make_str("function"); }
5843                 | GLOBAL                        { $$ = make_str("global"); }
5844                 | HANDLER                       { $$ = make_str("handler"); }
5845                 | HOLD                          { $$ = make_str("hold"); }
5846                 | HOUR_P                        { $$ = make_str("hour"); }
5847                 | IMMEDIATE                     { $$ = make_str("immediate"); }
5848                 | IMMUTABLE                     { $$ = make_str("immutable"); }
5849                 | IMPLICIT_P                    { $$ = make_str("implicit"); }
5850                 | INCLUDING                     { $$ = make_str("including"); }
5851                 | INCREMENT                     { $$ = make_str("increment"); }
5852                 | INDEX                         { $$ = make_str("index"); }
5853                 | INHERITS                      { $$ = make_str("inherits"); }
5854                 | INOUT                         { $$ = make_str("inout"); }
5855                 | INSENSITIVE                   { $$ = make_str("insensitive"); }
5856                 | INSERT                        { $$ = make_str("insert"); }
5857                 | INSTEAD                       { $$ = make_str("instead"); }
5858                 | ISOLATION                     { $$ = make_str("isolation"); }
5859                 | KEY                           { $$ = make_str("key"); }
5860                 | LANCOMPILER                   { $$ = make_str("lancompiler"); }
5861                 | LANGUAGE                      { $$ = make_str("language"); }
5862                 | LAST_P                        { $$ = make_str("last"); }
5863                 | LEVEL                         { $$ = make_str("level"); }
5864                 | LISTEN                        { $$ = make_str("listen"); }
5865                 | LOAD                          { $$ = make_str("load"); }
5866                 | LOCAL                         { $$ = make_str("local"); }
5867                 | LOCATION                      { $$ = make_str("location"); }
5868                 | LOCK_P                        { $$ = make_str("lock"); }
5869                 | MATCH                         { $$ = make_str("match"); }
5870                 | MAXVALUE                      { $$ = make_str("maxvalue"); }
5871                 | MINUTE_P                      { $$ = make_str("minute"); }
5872                 | MINVALUE                      { $$ = make_str("minvalue"); }
5873                 | MODE                          { $$ = make_str("mode"); }
5874                 | MONTH_P                       { $$ = make_str("month"); }
5875                 | MOVE                          { $$ = make_str("move"); }
5876                 | NAMES                         { $$ = make_str("names"); }
5877                 | NATIONAL                      { $$ = make_str("national"); }
5878                 | NEXT                          { $$ = make_str("next"); }
5879                 | NO                            { $$ = make_str("no"); }
5880                 | NOCREATEDB                    { $$ = make_str("nocreatedb"); }
5881                 | NOCREATEUSER                  { $$ = make_str("nocreateuser"); }
5882                 | NOTHING                       { $$ = make_str("nothing"); }
5883                 | NOTIFY                        { $$ = make_str("notify"); }
5884                 | OF                            { $$ = make_str("of"); }
5885                 | OIDS                          { $$ = make_str("oids"); }
5886                 | OPERATOR                      { $$ = make_str("operator"); }
5887                 | OPTION                        { $$ = make_str("option"); }
5888                 | OUT_P                         { $$ = make_str("out"); }
5889                 | OWNER                         { $$ = make_str("owner"); }
5890                 | PARTIAL                       { $$ = make_str("partial"); }
5891                 | PASSWORD                      { $$ = make_str("password"); }
5892                 | PATH_P                        { $$ = make_str("path"); }
5893                 | PENDANT                       { $$ = make_str("pendant"); }
5894                 | PRECISION                     { $$ = make_str("precision"); }
5895                 | PREPARE                       { $$ = make_str("prepare"); }
5896                 | PRESERVE                      { $$ = make_str("preserver"); }
5897                 | PRIOR                         { $$ = make_str("prior"); }
5898                 | PRIVILEGES                    { $$ = make_str("privileges"); }
5899                 | PROCEDURAL                    { $$ = make_str("procedural"); }
5900                 | PROCEDURE                     { $$ = make_str("procedure"); }
5901                 | READ                          { $$ = make_str("read"); }
5902                 | RECHECK                       { $$ = make_str("recheck"); }
5903                 | REINDEX                       { $$ = make_str("reindex"); }
5904                 | RELATIVE_P                    { $$ = make_str("relative"); }
5905                 | RENAME                        { $$ = make_str("rename"); }
5906                 | REPLACE                       { $$ = make_str("replace"); }
5907                 | RESET                         { $$ = make_str("reset"); }
5908                 | RESTART                       { $$ = make_str("restart"); }
5909                 | RESTRICT                      { $$ = make_str("restrict"); }
5910                 | RETURNS                       { $$ = make_str("returns"); }
5911                 | REVOKE                        { $$ = make_str("revoke"); }
5912                 | ROLLBACK                      { $$ = make_str("rollback"); }
5913                 | ROWS                          { $$ = make_str("rows"); }
5914                 | RULE                          { $$ = make_str("rule"); }
5915                 | SCHEMA                        { $$ = make_str("schema"); }
5916                 | SCROLL                        { $$ = make_str("scroll"); }
5917                 | SECOND_P                      { $$ = make_str("second"); }
5918                 | SEQUENCE                      { $$ = make_str("sequence"); }
5919                 | SERIALIZABLE                  { $$ = make_str("serializable"); }
5920                 | SESSION                       { $$ = make_str("session"); }
5921                 | SET                           { $$ = make_str("set"); }
5922                 | SHARE                         { $$ = make_str("share"); }
5923                 | SHOW                          { $$ = make_str("show"); }
5924                 | SIMPLE                        { $$ = make_str("simple"); }
5925                 | STABLE                        { $$ = make_str("stable"); }
5926                 | START                         { $$ = make_str("start"); }
5927                 | STATEMENT                     { $$ = make_str("statement"); }
5928                 | STATISTICS                    { $$ = make_str("statistics"); }
5929                 | STDIN                         { $$ = make_str("stdin"); }
5930                 | STDOUT                        { $$ = make_str("stdout"); }
5931                 | STORAGE                       { $$ = make_str("storage"); }
5932                 | STRICT_P                      { $$ = make_str("strict"); }
5933                 | SYSID                         { $$ = make_str("sysid"); }
5934                 | TEMP                          { $$ = make_str("temp"); }
5935                 | TEMPLATE                      { $$ = make_str("template"); }
5936                 | TEMPORARY                     { $$ = make_str("temporary"); }
5937                 | TOAST                         { $$ = make_str("toast"); }
5938                 | TRANSACTION                   { $$ = make_str("transaction"); }
5939                 | TRIGGER                       { $$ = make_str("trigger"); }
5940                 | TRUNCATE                      { $$ = make_str("truncate"); }
5941                 | TRUSTED                       { $$ = make_str("trusted"); }
5942                 | TYPE_P                        { $$ = make_str("type"); }
5943                 | UNENCRYPTED                   { $$ = make_str("unencrypted"); }
5944                 | UNKNOWN                       { $$ = make_str("unknown"); }
5945                 | UNLISTEN                      { $$ = make_str("unlisten"); }
5946                 | UNTIL                         { $$ = make_str("until"); }
5947                 | UPDATE                        { $$ = make_str("update"); }
5948                 | USAGE                         { $$ = make_str("usage"); }
5949                 | VACUUM                        { $$ = make_str("vacuum"); }
5950                 | VALID                         { $$ = make_str("valid"); }
5951                 | VALUES                        { $$ = make_str("values"); }
5952                 | VARYING                       { $$ = make_str("varying"); }
5953                 | VERSION                       { $$ = make_str("version"); }
5954                 | VIEW                          { $$ = make_str("view"); }
5955                 | WITH                          { $$ = make_str("with"); }
5956                 | WITHOUT                       { $$ = make_str("without"); }
5957                 | WORK                          { $$ = make_str("work"); }
5958                 | WRITE                         { $$ = make_str("write"); }
5959                 | YEAR_P                        { $$ = make_str("year"); }
5960                 | ZONE                          { $$ = make_str("zone"); }
5961                 ;
5962
5963 /* Column identifier --- keywords that can be column, table, etc names.
5964  *
5965  * Many of these keywords will in fact be recognized as type or function
5966  * names too; but they have special productions for the purpose, and so
5967  * can't be treated as "generic" type or function names.
5968  *
5969  * The type names appearing here are not usable as function names
5970  * because they can be followed by '(' in typename productions, which
5971  * looks too much like a function call for an LR(1) parser.
5972  */
5973 col_name_keyword:
5974                 BIGINT                  { $$ = make_str("bigint");}
5975                 | BIT                   { $$ = make_str("bit"); }
5976 /* CHAR must be excluded from ECPGColLabel because of conflict with UNSIGNED
5977                 | CHAR_P                { $$ = make_str("char"); }
5978  */
5979                 | CHARACTER             { $$ = make_str("character"); }
5980                 | COALESCE              { $$ = make_str("coalesce"); }
5981                 | CONVERT               { $$ = make_str("convert"); }
5982                 | DEC                   { $$ = make_str("dec"); }
5983                 | DECIMAL_P             { $$ = make_str("decimal"); }
5984                 | EXISTS                { $$ = make_str("exists"); }
5985                 | EXTRACT               { $$ = make_str("extract"); }
5986                 | FLOAT_P               { $$ = make_str("float"); }
5987 /* INT must be excluded from ECPGColLabel because of conflict
5988                 | INT_P                 { $$ = make_str("int"); }
5989  */
5990                 | INTEGER               { $$ = make_str("integer"); }
5991                 | INTERVAL              { $$ = make_str("interval"); }
5992                 | NCHAR                 { $$ = make_str("nchar"); }
5993                 | NONE                  { $$ = make_str("none"); }
5994                 | NULLIF                { $$ = make_str("nullif"); }
5995                 | NUMERIC               { $$ = make_str("numeric"); }
5996                 | POSITION              { $$ = make_str("position"); }
5997                 | REAL                  { $$ = make_str("real"); }
5998                 | ROW                   { $$ = make_str("row"); }
5999                 | SETOF                 { $$ = make_str("setof"); }
6000                 | SMALLINT              { $$ = make_str("smallint"); }
6001                 | SUBSTRING             { $$ = make_str("substring"); }
6002                 | TIME                  { $$ = make_str("time"); }
6003                 | TIMESTAMP             { $$ = make_str("timestamp"); }
6004                 | TREAT                 { $$ = make_str("treat"); }
6005                 | TRIM                  { $$ = make_str("trim"); }
6006                 | VARCHAR               { $$ = make_str("varchar"); }
6007                 ;
6008
6009 /* Function identifier --- keywords that can be function names.
6010  *
6011  * Most of these are keywords that are used as operators in expressions;
6012  * in general such keywords can't be column names because they would be
6013  * ambiguous with variables, but they are unambiguous as function identifiers.
6014  *
6015  * Do not include POSITION, SUBSTRING, etc here since they have explicit
6016  * productions in a_expr to support the goofy SQL9x argument syntax.
6017  *      - thomas 2000-11-28
6018  */
6019 func_name_keyword:
6020                   AUTHORIZATION         { $$ = make_str("authorization"); }
6021                 | BETWEEN               { $$ = make_str("between"); }
6022                 | BINARY                { $$ = make_str("binary"); }
6023                 | CROSS                 { $$ = make_str("cross"); }
6024                 | FREEZE                { $$ = make_str("freeze"); }
6025                 | FULL                  { $$ = make_str("full"); }
6026                 | ILIKE                 { $$ = make_str("ilike"); }
6027                 | IN_P                  { $$ = make_str("in"); }
6028                 | INNER_P               { $$ = make_str("inner"); }
6029                 | IS                    { $$ = make_str("is"); }
6030                 | ISNULL                { $$ = make_str("isnull"); }
6031                 | JOIN                  { $$ = make_str("join"); }
6032                 | LEFT                  { $$ = make_str("left"); }
6033                 | LIKE                  { $$ = make_str("like"); }
6034                 | NATURAL               { $$ = make_str("natural"); }
6035                 | NOTNULL               { $$ = make_str("notnull"); }
6036                 | OUTER_P               { $$ = make_str("outer"); }
6037                 | OVERLAPS              { $$ = make_str("overlaps"); }
6038                 | RIGHT                 { $$ = make_str("right"); }
6039                 | SIMILAR               { $$ = make_str("similar"); }
6040                 | VERBOSE               { $$ = make_str("verbose"); }
6041                 ;
6042
6043 /* Reserved keyword --- these keywords are usable only as a ColLabel.
6044  *
6045  * Keywords appear here if they could not be distinguished from variable,
6046  * type, or function names in some contexts.  Don't put things here unless
6047  * forced to.
6048  */
6049 reserved_keyword:
6050                   ALL                           { $$ = make_str("all"); }
6051                 | ANALYSE                       { $$ = make_str("analyse"); } /* British */
6052                 | ANALYZE                       { $$ = make_str("analyze"); }
6053                 | AND                           { $$ = make_str("and"); }
6054                 | ANY                           { $$ = make_str("any"); }
6055                 | ARRAY                         { $$ = make_str("array"); }
6056                 | AS                            { $$ = make_str("as"); }
6057                 | ASC                           { $$ = make_str("asc"); }
6058                 | BOTH                          { $$ = make_str("both"); }
6059                 | CASE                          { $$ = make_str("case"); }
6060                 | CAST                          { $$ = make_str("cast"); }
6061                 | CHECK                         { $$ = make_str("check"); }
6062                 | COLLATE                       { $$ = make_str("collate"); }
6063                 | COLUMN                        { $$ = make_str("column"); }
6064                 | CONSTRAINT                    { $$ = make_str("constraint"); }
6065                 | CREATE                        { $$ = make_str("create"); }
6066                 | CURRENT_DATE                  { $$ = make_str("current_date"); }
6067                 | CURRENT_TIME                  { $$ = make_str("current_time"); }
6068                 | CURRENT_TIMESTAMP             { $$ = make_str("current_timestamp"); }
6069                 | CURRENT_USER                  { $$ = make_str("current_user"); }
6070                 | DEFAULT                       { $$ = make_str("default"); }
6071                 | DEFERRABLE                    { $$ = make_str("deferrable"); }
6072                 | DESC                          { $$ = make_str("desc"); }
6073                 | DISTINCT                      { $$ = make_str("distinct"); }
6074                 | DO                            { $$ = make_str("do"); }
6075                 | ELSE                          { $$ = make_str("else"); }
6076                 | END_P                         { $$ = make_str("end"); }
6077                 | EXCEPT                        { $$ = make_str("except"); }
6078                 | FALSE_P                       { $$ = make_str("false"); }
6079                 | FOR                           { $$ = make_str("for"); }
6080                 | FOREIGN                       { $$ = make_str("foreign"); }
6081                 | FROM                          { $$ = make_str("from"); }
6082                 | GRANT                         { $$ = make_str("grant"); }
6083                 | GROUP_P                       { $$ = make_str("group"); }
6084                 | HAVING                        { $$ = make_str("having"); }
6085                 | INITIALLY                     { $$ = make_str("initially"); }
6086                 | INTERSECT                     { $$ = make_str("intersect"); }
6087                 | INTO                          { $$ = make_str("into"); }
6088                 | LEADING                       { $$ = make_str("leading"); }
6089                 | LIMIT                         { $$ = make_str("limit"); }
6090                 | NEW                           { $$ = make_str("new"); }
6091                 | NOT                           { $$ = make_str("not"); }
6092                 | NULL_P                        { $$ = make_str("null"); }
6093                 | OFF                           { $$ = make_str("off"); }
6094                 | OFFSET                        { $$ = make_str("offset"); }
6095                 | OLD                           { $$ = make_str("old"); }
6096                 | ON                            { $$ = make_str("on"); }
6097                 | ONLY                          { $$ = make_str("only"); }
6098                 | OR                            { $$ = make_str("or"); }
6099                 | ORDER                         { $$ = make_str("order"); }
6100                 | PRIMARY                       { $$ = make_str("primary"); }
6101                 | REFERENCES                    { $$ = make_str("references"); }
6102                 | SELECT                        { $$ = make_str("select"); }
6103                 | SESSION_USER                  { $$ = make_str("session_user"); }
6104                 | SOME                          { $$ = make_str("some"); }
6105                 | TABLE                         { $$ = make_str("table"); }
6106                 | THEN                          { $$ = make_str("then"); }
6107                 | TO                            { $$ = make_str("to"); }
6108                 | TRAILING                      { $$ = make_str("trailing"); }
6109                 | TRUE_P                        { $$ = make_str("true"); }
6110 /* UNION must be excluded from ECPGColLabel because of conflict with s_union
6111                 | UNION                         { $$ = make_str("union"); }
6112  */
6113                 | UNIQUE                        { $$ = make_str("unique"); }
6114                 | USER                          { $$ = make_str("user"); }
6115                 | USING                         { $$ = make_str("using"); }
6116                 | WHEN                          { $$ = make_str("when"); }
6117                 | WHERE                         { $$ = make_str("where"); }
6118                 ;
6119
6120
6121 into_list : coutputvariable | into_list ',' coutputvariable
6122                 ;
6123
6124 ecpgstart: SQL_START    { reset_variables(); }
6125                 ;
6126
6127 c_args: /*EMPTY*/               { $$ = EMPTY; }
6128                 | c_list                { $$ = $1; }
6129                 ;
6130
6131 coutputvariable: CVARIABLE indicator
6132                         { add_variable(&argsresult, find_variable($1), find_variable($2)); }
6133                 | CVARIABLE
6134                         { add_variable(&argsresult, find_variable($1), &no_indicator); }
6135                 ;
6136
6137
6138 civarind: CVARIABLE indicator
6139                 {
6140                         if (find_variable($2)->type->type == ECPGt_array)
6141                                 mmerror(PARSE_ERROR, ET_ERROR, "arrays of indicators are not allowed on input");
6142
6143                         add_variable(&argsinsert, find_variable($1), find_variable($2));
6144                         $$ = create_questionmarks($1, false);
6145                 }
6146                 ;
6147
6148 civar: CVARIABLE
6149                         {
6150                                 add_variable(&argsinsert, find_variable($1), &no_indicator);
6151                                 $$ = create_questionmarks($1, false);
6152                         }
6153                 ;
6154
6155 indicator: CVARIABLE                            { check_indicator((find_variable($1))->type); $$ = $1; }
6156                 | SQL_INDICATOR CVARIABLE       { check_indicator((find_variable($2))->type); $$ = $2; }
6157                 | SQL_INDICATOR name            { check_indicator((find_variable($2))->type); $$ = $2; }
6158                 ;
6159
6160 ident: IDENT                                            { $$ = $1; }
6161                 | CSTRING                                       { $$ = make3_str(make_str("\""), $1, make_str("\"")); }
6162                 ;
6163
6164 quoted_ident_stringvar: name
6165                         { $$ = make3_str(make_str("\""), $1, make_str("\"")); }
6166                 | char_variable
6167                         { $$ = make3_str(make_str("("), $1, make_str(")")); }
6168                 ;
6169
6170 /*
6171  * C stuff
6172  */
6173
6174 c_stuff_item: c_anything                        { $$ = $1; }
6175                 | '(' ')'                       { $$ = make_str("()"); }
6176                 | '(' c_stuff ')'
6177                         { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
6178                 ;
6179
6180 c_stuff: c_stuff_item   { $$ = $1; }
6181                 | c_stuff c_stuff_item
6182                         { $$ = cat2_str($1, $2); }
6183                 ;
6184
6185 c_list: c_term                          { $$ = $1; }
6186                 | c_list ',' c_term     { $$ = cat_str(3, $1, make_str(","), $3); }
6187                 ;
6188
6189 c_term:  c_stuff                        { $$ = $1; }
6190                 | '{' c_list '}'        { $$ = cat_str(3, make_str("{"), $2, make_str("}")); }
6191                 ;
6192
6193 c_thing:        c_anything      { $$ = $1; }
6194                 |       '('     { $$ = make_str("("); }
6195                 |       ')'     { $$ = make_str(")"); }
6196                 |       ','     { $$ = make_str(","); }
6197                 |       ';'     { $$ = make_str(";"); }
6198                 ;
6199
6200 c_anything:  IDENT                              { $$ = $1; }
6201                 | CSTRING                       { $$ = make3_str(make_str("\""), $1, make_str("\"")); }
6202                 | Iconst                        { $$ = $1; }
6203                 | Fconst                        { $$ = $1; }
6204                 | Sconst                        { $$ = $1; }
6205                 | '*'                           { $$ = make_str("*"); }
6206                 | '+'                           { $$ = make_str("+"); }
6207                 | '-'                           { $$ = make_str("-"); }
6208                 | '/'                           { $$ = make_str("/"); }
6209                 | '%'                           { $$ = make_str("%"); }
6210                 | NULL_P                        { $$ = make_str("NULL"); }
6211                 | S_ADD                         { $$ = make_str("+="); }
6212                 | S_AND                         { $$ = make_str("&&"); }
6213                 | S_ANYTHING                    { $$ = make_name(); }
6214                 | S_AUTO                        { $$ = make_str("auto"); }
6215                 | S_CONST                       { $$ = make_str("const"); }
6216                 | S_DEC                         { $$ = make_str("--"); }
6217                 | S_DIV                         { $$ = make_str("/="); }
6218                 | S_DOTPOINT                    { $$ = make_str(".*"); }
6219                 | S_EQUAL                       { $$ = make_str("=="); }
6220                 | S_EXTERN                      { $$ = make_str("extern"); }
6221                 | S_INC                         { $$ = make_str("++"); }
6222                 | S_LSHIFT                      { $$ = make_str("<<"); }
6223                 | S_MEMBER                      { $$ = make_str("->"); }
6224                 | S_MEMPOINT                    { $$ = make_str("->*"); }
6225                 | S_MOD                         { $$ = make_str("%="); }
6226                 | S_MUL                         { $$ = make_str("*="); }
6227                 | S_NEQUAL                      { $$ = make_str("!="); }
6228                 | S_OR                          { $$ = make_str("||"); }
6229                 | S_REGISTER                    { $$ = make_str("register"); }
6230                 | S_RSHIFT                      { $$ = make_str(">>"); }
6231                 | S_STATIC                      { $$ = make_str("static"); }
6232                 | S_SUB                         { $$ = make_str("-="); }
6233                 | S_TYPEDEF                     { $$ = make_str("typedef"); }
6234                 | SQL_BOOL                      { $$ = make_str("bool"); }
6235                 | SQL_ENUM                      { $$ = make_str("enum"); }
6236                 | HOUR_P                        { $$ = make_str("hour"); }
6237                 | INT_P                         { $$ = make_str("int"); }
6238                 | SQL_LONG                      { $$ = make_str("long"); }
6239                 | MINUTE_P                      { $$ = make_str("minute"); }
6240                 | MONTH_P                       { $$ = make_str("month"); }
6241                 | SECOND_P                      { $$ = make_str("second"); }
6242                 | SQL_SHORT                     { $$ = make_str("short"); }
6243                 | SQL_SIGNED                    { $$ = make_str("signed"); }
6244                 | SQL_STRUCT                    { $$ = make_str("struct"); }
6245                 | SQL_UNSIGNED                  { $$ = make_str("unsigned"); }
6246                 | YEAR_P                        { $$ = make_str("year"); }
6247                 | CHAR_P                        { $$ = make_str("char"); }
6248                 | FLOAT_P                       { $$ = make_str("float"); }
6249                 | UNION                         { $$ = make_str("union"); }
6250                 | VARCHAR                       { $$ = make_str("varchar"); }
6251                 | '['                           { $$ = make_str("["); }
6252                 | ']'                           { $$ = make_str("]"); }
6253                 | '='                           { $$ = make_str("="); }
6254                 ;
6255
6256 %%
6257
6258 void yyerror( char * error)
6259 {
6260         char buf[1024];
6261
6262         snprintf(buf,sizeof buf,"%s at or near \"%s\"", error, token_start ? token_start : yytext);
6263         buf[sizeof(buf)-1]=0;
6264         mmerror(PARSE_ERROR, ET_ERROR, buf);
6265 }
6266
6267 #include "pgc.c"