granicus.if.org Git - postgresql/blob - src/backend/tcop/utility.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * utility.c
   4  *        Contains functions which control the execution of the POSTGRES utility
   5  *        commands.  At one time acted as an interface between the Lisp and C
   6  *        systems.
   7  *
   8  * Copyright (c) 1994, Regents of the University of California
   9  *
  10  *
  11  * IDENTIFICATION
  12  *        $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.68 1999/09/29 16:06:11 wieck Exp $
  13  *
  14  *-------------------------------------------------------------------------
  15  */
  16 #include "postgres.h"
  17
  18 #include "access/heapam.h"
  19 #include "catalog/catalog.h"
  20 #include "catalog/pg_type.h"
  21 #include "commands/async.h"
  22 #include "commands/cluster.h"
  23 #include "commands/command.h"
  24 #include "commands/copy.h"
  25 #include "commands/creatinh.h"
  26 #include "commands/dbcommands.h"
  27 #include "commands/defrem.h"
  28 #include "commands/explain.h"
  29 #include "commands/proclang.h"
  30 #include "commands/rename.h"
  31 #include "commands/sequence.h"
  32 #include "commands/trigger.h"
  33 #include "commands/vacuum.h"
  34 #include "commands/variable.h"
  35 #include "commands/view.h"
  36 #include "miscadmin.h"
  37 #include "rewrite/rewriteDefine.h"
  38 #include "rewrite/rewriteRemove.h"
  39 #include "tcop/utility.h"
  40 #include "utils/acl.h"
  41 #include "utils/acl.h"
  42 #include "utils/ps_status.h"
  43 #include "utils/syscache.h"
  44
  45 #include "../backend/parser/parse.h"
  46
  47 void            DefineUser(CreateUserStmt *stmt, CommandDest);
  48 void            AlterUser(AlterUserStmt *stmt, CommandDest);
  49 void            RemoveUser(char *username, CommandDest);
  50
  51 /* ----------------
  52  *              CHECK_IF_ABORTED() is used to avoid doing unnecessary
  53  *              processing within an aborted transaction block.
  54  * ----------------
  55  */
  56  /* we have to use IF because of the 'break' */
  57 #define CHECK_IF_ABORTED() \
  58 if (1) \
  59 { \
  60         if (IsAbortedTransactionBlockState()) \
  61         { \
  62                 elog(NOTICE, "(transaction aborted): %s", \
  63                          "all queries ignored until end of transaction block"); \
  64                 commandTag = "*ABORT STATE*"; \
  65                 break; \
  66         } \
  67 } else
  68
  69 /* ----------------
  70  *              general utility function invoker
  71  * ----------------
  72  */
  73 void
  74 ProcessUtility(Node *parsetree,
  75                            CommandDest dest)
  76 {
  77         char       *commandTag = NULL;
  78         char       *relname;
  79         char       *relationName;
  80         char       *userName;
  81
  82         userName = GetPgUserName();
  83
  84         switch (nodeTag(parsetree))
  85         {
  86
  87                         /*
  88                          * ******************************** transactions ********************************
  89                          *
  90                          */
  91                 case T_TransactionStmt:
  92                         {
  93                                 TransactionStmt *stmt = (TransactionStmt *) parsetree;
  94
  95                                 switch (stmt->command)
  96                                 {
  97                                         case BEGIN_TRANS:
  98                                                 PS_SET_STATUS(commandTag = "BEGIN");
  99                                                 CHECK_IF_ABORTED();
 100                                                 BeginTransactionBlock();
 101                                                 break;
 102
 103                                         case END_TRANS:
 104                                                 PS_SET_STATUS(commandTag = "END");
 105                                                 EndTransactionBlock();
 106                                                 break;
 107
 108                                         case ABORT_TRANS:
 109                                                 PS_SET_STATUS(commandTag = "ABORT");
 110                                                 UserAbortTransactionBlock();
 111                                                 break;
 112                                 }
 113                         }
 114                         break;
 115
 116                         /*
 117                          * ******************************** portal manipulation ********************************
 118                          *
 119                          */
 120                 case T_ClosePortalStmt:
 121                         {
 122                                 ClosePortalStmt *stmt = (ClosePortalStmt *) parsetree;
 123
 124                                 PS_SET_STATUS(commandTag = "CLOSE");
 125                                 CHECK_IF_ABORTED();
 126
 127                                 PerformPortalClose(stmt->portalname, dest);
 128                         }
 129                         break;
 130
 131                 case T_FetchStmt:
 132                         {
 133                                 FetchStmt  *stmt = (FetchStmt *) parsetree;
 134                                 char       *portalName = stmt->portalname;
 135                                 bool            forward;
 136                                 int                     count;
 137
 138                                 PS_SET_STATUS(commandTag = (stmt->ismove) ? "MOVE" : "FETCH");
 139                                 CHECK_IF_ABORTED();
 140
 141                                 forward = (bool) (stmt->direction == FORWARD);
 142
 143                                 /*
 144                                  * parser ensures that count is >= 0 and 'fetch ALL' -> 0
 145                                  */
 146
 147                                 count = stmt->howMany;
 148                                 PerformPortalFetch(portalName, forward, count, commandTag,
 149                                                                    (stmt->ismove) ? None : dest);               /* /dev/null for MOVE */
 150                         }
 151                         break;
 152
 153                         /*
 154                          * ******************************** relation and attribute
 155                          * manipulation ********************************
 156                          *
 157                          */
 158                 case T_CreateStmt:
 159                         PS_SET_STATUS(commandTag = "CREATE");
 160                         CHECK_IF_ABORTED();
 161
 162                         DefineRelation((CreateStmt *) parsetree, RELKIND_RELATION);
 163                         break;
 164
 165                 case T_DestroyStmt:
 166                         {
 167                                 DestroyStmt *stmt = (DestroyStmt *) parsetree;
 168                                 List       *args = stmt->relNames;
 169                                 List       *arg;
 170
 171                                 PS_SET_STATUS(commandTag = "DROP");
 172                                 CHECK_IF_ABORTED();
 173
 174                                 /* check as much as we can before we start dropping ... */
 175                                 foreach(arg, args)
 176                                 {
 177                                         Relation        rel;
 178
 179                                         relname = strVal(lfirst(arg));
 180                                         if (!allowSystemTableMods && IsSystemRelationName(relname))
 181                                                 elog(ERROR, "class \"%s\" is a system catalog",
 182                                                          relname);
 183                                         rel = heap_openr(relname, AccessExclusiveLock);
 184                                         if (stmt->sequence &&
 185                                                 rel->rd_rel->relkind != RELKIND_SEQUENCE)
 186                                                 elog(ERROR, "Use DROP TABLE to drop table '%s'",
 187                                                          relname);
 188                                         if (!(stmt->sequence) &&
 189                                                 rel->rd_rel->relkind == RELKIND_SEQUENCE)
 190                                                 elog(ERROR, "Use DROP SEQUENCE to drop sequence '%s'",
 191                                                          relname);
 192                                         /* close rel, but keep lock until end of xact */
 193                                         heap_close(rel, NoLock);
 194 #ifndef NO_SECURITY
 195                                         if (!pg_ownercheck(userName, relname, RELNAME))
 196                                                 elog(ERROR, "you do not own class \"%s\"",
 197                                                          relname);
 198 #endif
 199                                 }
 200                                 /* OK, terminate 'em all */
 201                                 foreach(arg, args)
 202                                 {
 203                                         relname = strVal(lfirst(arg));
 204                                         RemoveRelation(relname);
 205                                 }
 206                         }
 207                         break;
 208
 209                 case T_TruncateStmt:
 210                         {
 211
 212                           Relation      rel;
 213
 214                           PS_SET_STATUS(commandTag = "TRUNCATE");
 215                           CHECK_IF_ABORTED();
 216
 217                           relname = ((TruncateStmt *) parsetree)->relName;
 218                           if (!allowSystemTableMods && IsSystemRelationName(relname)) {
 219                             elog(ERROR, "TRUNCATE cannot be used on system tables. '%s' is a system table",
 220                                  relname);
 221                           }
 222
 223                           rel = heap_openr(relname, AccessExclusiveLock);
 224                           if (RelationIsValid(rel)) {
 225                             if (rel->rd_rel->relkind == RELKIND_SEQUENCE) {
 226                               elog(ERROR, "TRUNCATE cannot be used on sequences. '%s' is a sequence",
 227                                    relname);
 228                             }
 229                             heap_close(rel, NoLock);
 230                           }
 231 #ifndef NO_SECURITY
 232                           if (!pg_ownercheck(userName, relname, RELNAME)) {
 233                             elog(ERROR, "you do not own class \"%s\"", relname);
 234                           }
 235 #endif
 236                           TruncateRelation(((TruncateStmt *) parsetree)->relName);
 237
 238                         }
 239                         break;
 240
 241                 case T_CopyStmt:
 242                         {
 243                                 CopyStmt   *stmt = (CopyStmt *) parsetree;
 244
 245                                 PS_SET_STATUS(commandTag = "COPY");
 246                                 CHECK_IF_ABORTED();
 247
 248                                 DoCopy(stmt->relname,
 249                                            stmt->binary,
 250                                            stmt->oids,
 251                                            (bool) (stmt->direction == FROM),
 252                                            (bool) (stmt->filename == NULL),
 253
 254                                 /*
 255                                  * null filename means copy to/from stdout/stdin, rather
 256                                  * than to/from a file.
 257                                  */
 258                                            stmt->filename,
 259                                            stmt->delimiter);
 260                         }
 261                         break;
 262
 263                 case T_AddAttrStmt:
 264                         {
 265                                 AddAttrStmt *stmt = (AddAttrStmt *) parsetree;
 266
 267                                 PS_SET_STATUS(commandTag = "ADD");
 268                                 CHECK_IF_ABORTED();
 269
 270                                 /*
 271                                  * owner checking done in PerformAddAttribute (now
 272                                  * recursive)
 273                                  */
 274                                 PerformAddAttribute(stmt->relname,
 275                                                                         userName,
 276                                                                         stmt->inh,
 277                                                                         (ColumnDef *) stmt->colDef);
 278                         }
 279                         break;
 280
 281                         /*
 282                          * schema
 283                          */
 284                 case T_RenameStmt:
 285                         {
 286                                 RenameStmt *stmt = (RenameStmt *) parsetree;
 287
 288                                 PS_SET_STATUS(commandTag = "RENAME");
 289                                 CHECK_IF_ABORTED();
 290
 291                                 relname = stmt->relname;
 292                                 if (!allowSystemTableMods && IsSystemRelationName(relname))
 293                                         elog(ERROR, "class \"%s\" is a system catalog",
 294                                                  relname);
 295 #ifndef NO_SECURITY
 296                                 if (!pg_ownercheck(userName, relname, RELNAME))
 297                                         elog(ERROR, "you do not own class \"%s\"",
 298                                                  relname);
 299 #endif
 300
 301                                 /* ----------------
 302                                  *      XXX using len == 3 to tell the difference
 303                                  *              between "rename rel to newrel" and
 304                                  *              "rename att in rel to newatt" will not
 305                                  *              work soon because "rename type/operator/rule"
 306                                  *              stuff is being added. - cim 10/24/90
 307                                  * ----------------
 308                                  * [another piece of amuzing but useless anecdote -- ay]
 309                                  */
 310                                 if (stmt->column == NULL)
 311                                 {
 312                                         /* ----------------
 313                                          *              rename relation
 314                                          *
 315                                          *              Note: we also rename the "type" tuple
 316                                          *              corresponding to the relation.
 317                                          * ----------------
 318                                          */
 319                                         renamerel(relname,      /* old name */
 320                                                           stmt->newname);       /* new name */
 321                                         TypeRename(relname, /* old name */
 322                                                            stmt->newname);      /* new name */
 323                                 }
 324                                 else
 325                                 {
 326                                         /* ----------------
 327                                          *              rename attribute
 328                                          * ----------------
 329                                          */
 330                                         renameatt(relname,      /* relname */
 331                                                           stmt->column,         /* old att name */
 332                                                           stmt->newname,        /* new att name */
 333                                                           userName,
 334                                                           stmt->inh);           /* recursive? */
 335                                 }
 336                         }
 337                         break;
 338
 339                 case T_ChangeACLStmt:
 340                         {
 341                                 ChangeACLStmt *stmt = (ChangeACLStmt *) parsetree;
 342                                 List       *i;
 343                                 AclItem    *aip;
 344                                 unsigned        modechg;
 345
 346                                 PS_SET_STATUS(commandTag = "CHANGE");
 347                                 CHECK_IF_ABORTED();
 348
 349                                 aip = stmt->aclitem;
 350
 351                                 modechg = stmt->modechg;
 352 #ifndef NO_SECURITY
 353                                 foreach(i, stmt->relNames)
 354                                 {
 355                                         relname = strVal(lfirst(i));
 356                                         if (!pg_ownercheck(userName, relname, RELNAME))
 357                                                 elog(ERROR, "you do not own class \"%s\"",
 358                                                          relname);
 359                                 }
 360 #endif
 361                                 foreach(i, stmt->relNames)
 362                                 {
 363                                         relname = strVal(lfirst(i));
 364                                         ChangeAcl(relname, aip, modechg);
 365                                 }
 366
 367                         }
 368                         break;
 369
 370                         /*
 371                          * ******************************** object creation /
 372                          * destruction ********************************
 373                          *
 374                          */
 375                 case T_DefineStmt:
 376                         {
 377                                 DefineStmt *stmt = (DefineStmt *) parsetree;
 378
 379                                 PS_SET_STATUS(commandTag = "CREATE");
 380                                 CHECK_IF_ABORTED();
 381
 382                                 switch (stmt->defType)
 383                                 {
 384                                         case OPERATOR:
 385                                                 DefineOperator(stmt->defname,   /* operator name */
 386                                                                            stmt->definition);           /* rest */
 387                                                 break;
 388                                         case TYPE_P:
 389                                                 DefineType(stmt->defname, stmt->definition);
 390                                                 break;
 391                                         case AGGREGATE:
 392                                                 DefineAggregate(stmt->defname,  /* aggregate name */
 393                                                                                 stmt->definition);              /* rest */
 394                                                 break;
 395                                 }
 396                         }
 397                         break;
 398
 399                 case T_ViewStmt:                /* CREATE VIEW */
 400                         {
 401                                 ViewStmt   *stmt = (ViewStmt *) parsetree;
 402
 403                                 PS_SET_STATUS(commandTag = "CREATE");
 404                                 CHECK_IF_ABORTED();
 405                                 DefineView(stmt->viewname, stmt->query);                /* retrieve parsetree */
 406                         }
 407                         break;
 408
 409                 case T_ProcedureStmt:   /* CREATE FUNCTION */
 410                         PS_SET_STATUS(commandTag = "CREATE");
 411                         CHECK_IF_ABORTED();
 412                         CreateFunction((ProcedureStmt *) parsetree, dest);      /* everything */
 413                         break;
 414
 415                 case T_IndexStmt:               /* CREATE INDEX */
 416                         {
 417                                 IndexStmt  *stmt = (IndexStmt *) parsetree;
 418
 419                                 PS_SET_STATUS(commandTag = "CREATE");
 420                                 CHECK_IF_ABORTED();
 421                                 DefineIndex(stmt->relname,              /* relation name */
 422                                                         stmt->idxname,          /* index name */
 423                                                         stmt->accessMethod, /* am name */
 424                                                         stmt->indexParams,      /* parameters */
 425                                                         stmt->withClause,
 426                                                         stmt->unique,
 427                                                         stmt->primary,
 428                                                         (Expr *) stmt->whereClause,
 429                                                         stmt->rangetable);
 430                         }
 431                         break;
 432
 433                 case T_RuleStmt:                /* CREATE RULE */
 434                         {
 435                                 RuleStmt   *stmt = (RuleStmt *) parsetree;
 436                                 int                     aclcheck_result;
 437
 438 #ifndef NO_SECURITY
 439                                 relname = stmt->object->relname;
 440                                 aclcheck_result = pg_aclcheck(relname, userName, ACL_RU);
 441                                 if (aclcheck_result != ACLCHECK_OK)
 442                                         elog(ERROR, "%s: %s", relname, aclcheck_error_strings[aclcheck_result]);
 443 #endif
 444                                 PS_SET_STATUS(commandTag = "CREATE");
 445                                 CHECK_IF_ABORTED();
 446                                 DefineQueryRewrite(stmt);
 447                         }
 448                         break;
 449
 450                 case T_CreateSeqStmt:
 451                         PS_SET_STATUS(commandTag = "CREATE");
 452                         CHECK_IF_ABORTED();
 453
 454                         DefineSequence((CreateSeqStmt *) parsetree);
 455                         break;
 456
 457                 case T_ExtendStmt:
 458                         {
 459                                 ExtendStmt *stmt = (ExtendStmt *) parsetree;
 460
 461                                 PS_SET_STATUS(commandTag = "EXTEND");
 462                                 CHECK_IF_ABORTED();
 463
 464                                 ExtendIndex(stmt->idxname,              /* index name */
 465                                                         (Expr *) stmt->whereClause, /* where */
 466                                                         stmt->rangetable);
 467                         }
 468                         break;
 469
 470                 case T_RemoveStmt:
 471                         {
 472                                 RemoveStmt *stmt = (RemoveStmt *) parsetree;
 473
 474                                 PS_SET_STATUS(commandTag = "DROP");
 475                                 CHECK_IF_ABORTED();
 476
 477                                 switch (stmt->removeType)
 478                                 {
 479                                         case INDEX:
 480                                                 relname = stmt->name;
 481                                                 if (!allowSystemTableMods && IsSystemRelationName(relname))
 482                                                         elog(ERROR, "class \"%s\" is a system catalog index",
 483                                                                  relname);
 484 #ifndef NO_SECURITY
 485                                                 if (!pg_ownercheck(userName, relname, RELNAME))
 486                                                         elog(ERROR, "%s: %s", relname, aclcheck_error_strings[ACLCHECK_NOT_OWNER]);
 487 #endif
 488                                                 RemoveIndex(relname);
 489                                                 break;
 490                                         case RULE:
 491                                                 {
 492                                                         char       *rulename = stmt->name;
 493                                                         int                     aclcheck_result;
 494
 495 #ifndef NO_SECURITY
 496
 497                                                         relationName = RewriteGetRuleEventRel(rulename);
 498                                                         aclcheck_result = pg_aclcheck(relationName, userName, ACL_RU);
 499                                                         if (aclcheck_result != ACLCHECK_OK)
 500                                                                 elog(ERROR, "%s: %s", relationName, aclcheck_error_strings[aclcheck_result]);
 501 #endif
 502                                                         RemoveRewriteRule(rulename);
 503                                                 }
 504                                                 break;
 505                                         case TYPE_P:
 506 #ifndef NO_SECURITY
 507                                                 /* XXX moved to remove.c */
 508 #endif
 509                                                 RemoveType(stmt->name);
 510                                                 break;
 511                                         case VIEW:
 512                                                 {
 513                                                         char       *viewName = stmt->name;
 514                                                         char       *ruleName;
 515
 516 #ifndef NO_SECURITY
 517
 518                                                         ruleName = MakeRetrieveViewRuleName(viewName);
 519                                                         relationName = RewriteGetRuleEventRel(ruleName);
 520                                                         if (!pg_ownercheck(userName, relationName, RELNAME))
 521                                                                 elog(ERROR, "%s: %s", relationName, aclcheck_error_strings[ACLCHECK_NOT_OWNER]);
 522                                                         pfree(ruleName);
 523 #endif
 524                                                         RemoveView(viewName);
 525                                                 }
 526                                                 break;
 527                                 }
 528                                 break;
 529                         }
 530                         break;
 531
 532                 case T_RemoveAggrStmt:
 533                         {
 534                                 RemoveAggrStmt *stmt = (RemoveAggrStmt *) parsetree;
 535
 536                                 PS_SET_STATUS(commandTag = "DROP");
 537                                 CHECK_IF_ABORTED();
 538                                 RemoveAggregate(stmt->aggname, stmt->aggtype);
 539                         }
 540                         break;
 541
 542                 case T_RemoveFuncStmt:
 543                         {
 544                                 RemoveFuncStmt *stmt = (RemoveFuncStmt *) parsetree;
 545
 546                                 PS_SET_STATUS(commandTag = "DROP");
 547                                 CHECK_IF_ABORTED();
 548                                 RemoveFunction(stmt->funcname,
 549                                                            length(stmt->args),
 550                                                            stmt->args);
 551                         }
 552                         break;
 553
 554                 case T_RemoveOperStmt:
 555                         {
 556                                 RemoveOperStmt *stmt = (RemoveOperStmt *) parsetree;
 557                                 char       *type1 = (char *) NULL;
 558                                 char       *type2 = (char *) NULL;
 559
 560                                 PS_SET_STATUS(commandTag = "DROP");
 561                                 CHECK_IF_ABORTED();
 562
 563                                 if (lfirst(stmt->args) != NULL)
 564                                         type1 = strVal(lfirst(stmt->args));
 565                                 if (lsecond(stmt->args) != NULL)
 566                                         type2 = strVal(lsecond(stmt->args));
 567                                 RemoveOperator(stmt->opname, type1, type2);
 568                         }
 569                         break;
 570
 571                 case T_VersionStmt:
 572                         elog(ERROR, "CREATE VERSION is not currently implemented");
 573                         break;
 574
 575                 case T_CreatedbStmt:
 576                         {
 577                                 CreatedbStmt *stmt = (CreatedbStmt *) parsetree;
 578
 579                                 PS_SET_STATUS(commandTag = "CREATEDB");
 580                                 CHECK_IF_ABORTED();
 581                                 createdb(stmt->dbname, stmt->dbpath, stmt->encoding, dest);
 582                         }
 583                         break;
 584
 585                 case T_DestroydbStmt:
 586                         {
 587                                 DestroydbStmt *stmt = (DestroydbStmt *) parsetree;
 588
 589                                 PS_SET_STATUS(commandTag = "DESTROYDB");
 590                                 CHECK_IF_ABORTED();
 591                                 destroydb(stmt->dbname, dest);
 592                         }
 593                         break;
 594
 595                         /* Query-level asynchronous notification */
 596                 case T_NotifyStmt:
 597                         {
 598                                 NotifyStmt *stmt = (NotifyStmt *) parsetree;
 599
 600                                 PS_SET_STATUS(commandTag = "NOTIFY");
 601                                 CHECK_IF_ABORTED();
 602
 603                                 Async_Notify(stmt->relname);
 604                         }
 605                         break;
 606
 607                 case T_ListenStmt:
 608                         {
 609                                 ListenStmt *stmt = (ListenStmt *) parsetree;
 610
 611                                 PS_SET_STATUS(commandTag = "LISTEN");
 612                                 CHECK_IF_ABORTED();
 613
 614                                 Async_Listen(stmt->relname, MyProcPid);
 615                         }
 616                         break;
 617
 618                 case T_UnlistenStmt:
 619                         {
 620                                 UnlistenStmt *stmt = (UnlistenStmt *) parsetree;
 621
 622                                 PS_SET_STATUS(commandTag = "UNLISTEN");
 623                                 CHECK_IF_ABORTED();
 624
 625                                 Async_Unlisten(stmt->relname, MyProcPid);
 626                         }
 627                         break;
 628
 629                         /*
 630                          * ******************************** dynamic loader ********************************
 631                          *
 632                          */
 633                 case T_LoadStmt:
 634                         {
 635                                 LoadStmt   *stmt = (LoadStmt *) parsetree;
 636
 637                                 PS_SET_STATUS(commandTag = "LOAD");
 638                                 CHECK_IF_ABORTED();
 639
 640                                 closeAllVfds(); /* probably not necessary... */
 641                                 load_file(stmt->filename);
 642                         }
 643                         break;
 644
 645                 case T_ClusterStmt:
 646                         {
 647                                 ClusterStmt *stmt = (ClusterStmt *) parsetree;
 648
 649                                 PS_SET_STATUS(commandTag = "CLUSTER");
 650                                 CHECK_IF_ABORTED();
 651
 652                                 cluster(stmt->relname, stmt->indexname);
 653                         }
 654                         break;
 655
 656                 case T_VacuumStmt:
 657                         PS_SET_STATUS(commandTag = "VACUUM");
 658                         CHECK_IF_ABORTED();
 659                         vacuum(((VacuumStmt *) parsetree)->vacrel,
 660                                    ((VacuumStmt *) parsetree)->verbose,
 661                                    ((VacuumStmt *) parsetree)->analyze,
 662                                    ((VacuumStmt *) parsetree)->va_spec);
 663                         break;
 664
 665                 case T_ExplainStmt:
 666                         {
 667                                 ExplainStmt *stmt = (ExplainStmt *) parsetree;
 668
 669                                 PS_SET_STATUS(commandTag = "EXPLAIN");
 670                                 CHECK_IF_ABORTED();
 671
 672                                 ExplainQuery(stmt->query, stmt->verbose, dest);
 673                         }
 674                         break;
 675
 676 #ifdef NOT_USED
 677
 678                         /*
 679                          * ******************************** Tioga-related statements *******************************
 680                          */
 681                 case T_RecipeStmt:
 682                         {
 683                                 RecipeStmt *stmt = (RecipeStmt *) parsetree;
 684
 685                                 PS_SET_STATUS(commandTag = "EXECUTE RECIPE");
 686                                 CHECK_IF_ABORTED();
 687                                 beginRecipe(stmt);
 688                         }
 689                         break;
 690 #endif
 691
 692                         /*
 693                          * ******************************** set variable statements *******************************
 694                          */
 695                 case T_VariableSetStmt:
 696                         {
 697                                 VariableSetStmt *n = (VariableSetStmt *) parsetree;
 698
 699                                 SetPGVariable(n->name, n->value);
 700                                 PS_SET_STATUS(commandTag = "SET VARIABLE");
 701                         }
 702                         break;
 703
 704                 case T_VariableShowStmt:
 705                         {
 706                                 VariableShowStmt *n = (VariableShowStmt *) parsetree;
 707
 708                                 GetPGVariable(n->name);
 709                                 PS_SET_STATUS(commandTag = "SHOW VARIABLE");
 710                         }
 711                         break;
 712
 713                 case T_VariableResetStmt:
 714                         {
 715                                 VariableResetStmt *n = (VariableResetStmt *) parsetree;
 716
 717                                 ResetPGVariable(n->name);
 718                                 PS_SET_STATUS(commandTag = "RESET VARIABLE");
 719                         }
 720                         break;
 721
 722                         /*
 723                          * ******************************** TRIGGER statements *******************************
 724                          */
 725                 case T_CreateTrigStmt:
 726                         PS_SET_STATUS(commandTag = "CREATE");
 727                         CHECK_IF_ABORTED();
 728
 729                         CreateTrigger((CreateTrigStmt *) parsetree);
 730                         break;
 731
 732                 case T_DropTrigStmt:
 733                         PS_SET_STATUS(commandTag = "DROP");
 734                         CHECK_IF_ABORTED();
 735
 736                         DropTrigger((DropTrigStmt *) parsetree);
 737                         break;
 738
 739                         /*
 740                          * ************* PROCEDURAL LANGUAGE statements *****************
 741                          */
 742                 case T_CreatePLangStmt:
 743                         PS_SET_STATUS(commandTag = "CREATE");
 744                         CHECK_IF_ABORTED();
 745
 746                         CreateProceduralLanguage((CreatePLangStmt *) parsetree);
 747                         break;
 748
 749                 case T_DropPLangStmt:
 750                         PS_SET_STATUS(commandTag = "DROP");
 751                         CHECK_IF_ABORTED();
 752
 753                         DropProceduralLanguage((DropPLangStmt *) parsetree);
 754                         break;
 755
 756                         /*
 757                          * ******************************** USER statements ****
 758                          *
 759                          */
 760                 case T_CreateUserStmt:
 761                         PS_SET_STATUS(commandTag = "CREATE USER");
 762                         CHECK_IF_ABORTED();
 763
 764                         DefineUser((CreateUserStmt *) parsetree, dest);
 765                         break;
 766
 767                 case T_AlterUserStmt:
 768                         PS_SET_STATUS(commandTag = "ALTER USER");
 769                         CHECK_IF_ABORTED();
 770
 771                         AlterUser((AlterUserStmt *) parsetree, dest);
 772                         break;
 773
 774                 case T_DropUserStmt:
 775                         PS_SET_STATUS(commandTag = "DROP USER");
 776                         CHECK_IF_ABORTED();
 777
 778                         RemoveUser(((DropUserStmt *) parsetree)->user, dest);
 779                         break;
 780
 781                 case T_LockStmt:
 782                         PS_SET_STATUS(commandTag = "LOCK TABLE");
 783                         CHECK_IF_ABORTED();
 784
 785                         LockTableCommand((LockStmt *) parsetree);
 786                         break;
 787
 788                 case T_ConstraintsSetStmt:
 789                         PS_SET_STATUS(commandTag = "SET CONSTRAINTS");
 790                         CHECK_IF_ABORTED();
 791
 792                         DeferredTriggerSetState((ConstraintsSetStmt *) parsetree);
 793                         break;
 794
 795
 796                         /*
 797                          * ******************************** default ********************************
 798                          *
 799                          */
 800                 default:
 801                         elog(ERROR, "ProcessUtility: command #%d unsupported",
 802                                  nodeTag(parsetree));
 803                         break;
 804         }
 805
 806         /* ----------------
 807          *      tell fe/be or whatever that we're done.
 808          * ----------------
 809          */
 810         EndCommand(commandTag, dest);
 811 }