granicus.if.org Git - postgresql/blob - src/backend/nodes/outfuncs.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * outfuncs.c
   4  *        Output functions for Postgres tree nodes.
   5  *
   6  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  *
  10  * IDENTIFICATION
  11  *        $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.224 2004/01/04 00:07:32 tgl Exp $
  12  *
  13  * NOTES
  14  *        Every node type that can appear in stored rules' parsetrees *must*
  15  *        have an output function defined here (as well as an input function
  16  *        in readfuncs.c).      For use in debugging, we also provide output
  17  *        functions for nodes that appear in raw parsetrees, path, and plan trees.
  18  *        These nodes however need not have input functions.
  19  *
  20  *-------------------------------------------------------------------------
  21  */
  22 #include "postgres.h"
  23
  24 #include <ctype.h>
  25
  26 #include "lib/stringinfo.h"
  27 #include "nodes/parsenodes.h"
  28 #include "nodes/plannodes.h"
  29 #include "nodes/relation.h"
  30 #include "utils/datum.h"
  31
  32
  33 /*
  34  * Macros to simplify output of different kinds of fields.      Use these
  35  * wherever possible to reduce the chance for silly typos.      Note that these
  36  * hard-wire conventions about the names of the local variables in an Out
  37  * routine.
  38  */
  39
  40 /* Write the label for the node type */
  41 #define WRITE_NODE_TYPE(nodelabel) \
  42         appendStringInfoString(str, nodelabel)
  43
  44 /* Write an integer field (anything written as ":fldname %d") */
  45 #define WRITE_INT_FIELD(fldname) \
  46         appendStringInfo(str, " :" CppAsString(fldname) " %d", node->fldname)
  47
  48 /* Write an unsigned integer field (anything written as ":fldname %u") */
  49 #define WRITE_UINT_FIELD(fldname) \
  50         appendStringInfo(str, " :" CppAsString(fldname) " %u", node->fldname)
  51
  52 /* Write an OID field (don't hard-wire assumption that OID is same as uint) */
  53 #define WRITE_OID_FIELD(fldname) \
  54         appendStringInfo(str, " :" CppAsString(fldname) " %u", node->fldname)
  55
  56 /* Write a long-integer field */
  57 #define WRITE_LONG_FIELD(fldname) \
  58         appendStringInfo(str, " :" CppAsString(fldname) " %ld", node->fldname)
  59
  60 /* Write a char field (ie, one ascii character) */
  61 #define WRITE_CHAR_FIELD(fldname) \
  62         appendStringInfo(str, " :" CppAsString(fldname) " %c", node->fldname)
  63
  64 /* Write an enumerated-type field as an integer code */
  65 #define WRITE_ENUM_FIELD(fldname, enumtype) \
  66         appendStringInfo(str, " :" CppAsString(fldname) " %d", \
  67                                          (int) node->fldname)
  68
  69 /* Write a float field --- caller must give format to define precision */
  70 #define WRITE_FLOAT_FIELD(fldname,format) \
  71         appendStringInfo(str, " :" CppAsString(fldname) " " format, node->fldname)
  72
  73 /* Write a boolean field */
  74 #define WRITE_BOOL_FIELD(fldname) \
  75         appendStringInfo(str, " :" CppAsString(fldname) " %s", \
  76                                          booltostr(node->fldname))
  77
  78 /* Write a character-string (possibly NULL) field */
  79 #define WRITE_STRING_FIELD(fldname) \
  80         (appendStringInfo(str, " :" CppAsString(fldname) " "), \
  81          _outToken(str, node->fldname))
  82
  83 /* Write a Node field */
  84 #define WRITE_NODE_FIELD(fldname) \
  85         (appendStringInfo(str, " :" CppAsString(fldname) " "), \
  86          _outNode(str, node->fldname))
  87
  88 /* Write an integer-list field */
  89 #define WRITE_INTLIST_FIELD(fldname) \
  90         (appendStringInfo(str, " :" CppAsString(fldname) " "), \
  91          _outIntList(str, node->fldname))
  92
  93 /* Write an OID-list field */
  94 #define WRITE_OIDLIST_FIELD(fldname) \
  95         (appendStringInfo(str, " :" CppAsString(fldname) " "), \
  96          _outOidList(str, node->fldname))
  97
  98 /* Write a bitmapset field */
  99 #define WRITE_BITMAPSET_FIELD(fldname) \
 100         (appendStringInfo(str, " :" CppAsString(fldname) " "), \
 101          _outBitmapset(str, node->fldname))
 102
 103
 104 #define booltostr(x)  ((x) ? "true" : "false")
 105
 106 static void _outNode(StringInfo str, void *obj);
 107
 108
 109 /*
 110  * _outToken
 111  *        Convert an ordinary string (eg, an identifier) into a form that
 112  *        will be decoded back to a plain token by read.c's functions.
 113  *
 114  *        If a null or empty string is given, it is encoded as "<>".
 115  */
 116 static void
 117 _outToken(StringInfo str, char *s)
 118 {
 119         if (s == NULL || *s == '\0')
 120         {
 121                 appendStringInfo(str, "<>");
 122                 return;
 123         }
 124
 125         /*
 126          * Look for characters or patterns that are treated specially by
 127          * read.c (either in pg_strtok() or in nodeRead()), and therefore need
 128          * a protective backslash.
 129          */
 130         /* These characters only need to be quoted at the start of the string */
 131         if (*s == '<' ||
 132                 *s == '\"' ||
 133                 *s == '@' ||
 134                 isdigit((unsigned char) *s) ||
 135                 ((*s == '+' || *s == '-') &&
 136                  (isdigit((unsigned char) s[1]) || s[1] == '.')))
 137                 appendStringInfoChar(str, '\\');
 138         while (*s)
 139         {
 140                 /* These chars must be backslashed anywhere in the string */
 141                 if (*s == ' ' || *s == '\n' || *s == '\t' ||
 142                         *s == '(' || *s == ')' || *s == '{' || *s == '}' ||
 143                         *s == '\\')
 144                         appendStringInfoChar(str, '\\');
 145                 appendStringInfoChar(str, *s++);
 146         }
 147 }
 148
 149 /*
 150  * _outIntList -
 151  *         converts a List of integers
 152  */
 153 static void
 154 _outIntList(StringInfo str, List *list)
 155 {
 156         List       *l;
 157
 158         appendStringInfoChar(str, '(');
 159         foreach(l, list)
 160                 appendStringInfo(str, " %d", lfirsti(l));
 161         appendStringInfoChar(str, ')');
 162 }
 163
 164 /*
 165  * _outOidList -
 166  *         converts a List of OIDs
 167  */
 168 static void
 169 _outOidList(StringInfo str, List *list)
 170 {
 171         List       *l;
 172
 173         appendStringInfoChar(str, '(');
 174         foreach(l, list)
 175                 appendStringInfo(str, " %u", lfirsto(l));
 176         appendStringInfoChar(str, ')');
 177 }
 178
 179 /*
 180  * _outBitmapset -
 181  *         converts a bitmap set of integers
 182  *
 183  * Note: for historical reasons, the output is formatted exactly like
 184  * an integer List would be.
 185  */
 186 static void
 187 _outBitmapset(StringInfo str, Bitmapset *bms)
 188 {
 189         Bitmapset  *tmpset;
 190         int                     x;
 191
 192         appendStringInfoChar(str, '(');
 193         tmpset = bms_copy(bms);
 194         while ((x = bms_first_member(tmpset)) >= 0)
 195                 appendStringInfo(str, " %d", x);
 196         bms_free(tmpset);
 197         appendStringInfoChar(str, ')');
 198 }
 199
 200 /*
 201  * Print the value of a Datum given its type.
 202  */
 203 static void
 204 _outDatum(StringInfo str, Datum value, int typlen, bool typbyval)
 205 {
 206         Size            length,
 207                                 i;
 208         char       *s;
 209
 210         length = datumGetSize(value, typbyval, typlen);
 211
 212         if (typbyval)
 213         {
 214                 s = (char *) (&value);
 215                 appendStringInfo(str, "%u [ ", (unsigned int) length);
 216                 for (i = 0; i < (Size) sizeof(Datum); i++)
 217                         appendStringInfo(str, "%d ", (int) (s[i]));
 218                 appendStringInfo(str, "]");
 219         }
 220         else
 221         {
 222                 s = (char *) DatumGetPointer(value);
 223                 if (!PointerIsValid(s))
 224                         appendStringInfo(str, "0 [ ]");
 225                 else
 226                 {
 227                         appendStringInfo(str, "%u [ ", (unsigned int) length);
 228                         for (i = 0; i < length; i++)
 229                                 appendStringInfo(str, "%d ", (int) (s[i]));
 230                         appendStringInfo(str, "]");
 231                 }
 232         }
 233 }
 234
 235
 236 /*
 237  *      Stuff from plannodes.h
 238  */
 239
 240 /*
 241  * print the basic stuff of all nodes that inherit from Plan
 242  */
 243 static void
 244 _outPlanInfo(StringInfo str, Plan *node)
 245 {
 246         WRITE_FLOAT_FIELD(startup_cost, "%.2f");
 247         WRITE_FLOAT_FIELD(total_cost, "%.2f");
 248         WRITE_FLOAT_FIELD(plan_rows, "%.0f");
 249         WRITE_INT_FIELD(plan_width);
 250         WRITE_NODE_FIELD(targetlist);
 251         WRITE_NODE_FIELD(qual);
 252         WRITE_NODE_FIELD(lefttree);
 253         WRITE_NODE_FIELD(righttree);
 254         WRITE_NODE_FIELD(initPlan);
 255         WRITE_BITMAPSET_FIELD(extParam);
 256         WRITE_BITMAPSET_FIELD(allParam);
 257         WRITE_INT_FIELD(nParamExec);
 258 }
 259
 260 /*
 261  * print the basic stuff of all nodes that inherit from Scan
 262  */
 263 static void
 264 _outScanInfo(StringInfo str, Scan *node)
 265 {
 266         _outPlanInfo(str, (Plan *) node);
 267
 268         WRITE_UINT_FIELD(scanrelid);
 269 }
 270
 271 /*
 272  * print the basic stuff of all nodes that inherit from Join
 273  */
 274 static void
 275 _outJoinPlanInfo(StringInfo str, Join *node)
 276 {
 277         _outPlanInfo(str, (Plan *) node);
 278
 279         WRITE_ENUM_FIELD(jointype, JoinType);
 280         WRITE_NODE_FIELD(joinqual);
 281 }
 282
 283
 284 static void
 285 _outPlan(StringInfo str, Plan *node)
 286 {
 287         WRITE_NODE_TYPE("PLAN");
 288
 289         _outPlanInfo(str, (Plan *) node);
 290 }
 291
 292 static void
 293 _outResult(StringInfo str, Result *node)
 294 {
 295         WRITE_NODE_TYPE("RESULT");
 296
 297         _outPlanInfo(str, (Plan *) node);
 298
 299         WRITE_NODE_FIELD(resconstantqual);
 300 }
 301
 302 static void
 303 _outAppend(StringInfo str, Append *node)
 304 {
 305         WRITE_NODE_TYPE("APPEND");
 306
 307         _outPlanInfo(str, (Plan *) node);
 308
 309         WRITE_NODE_FIELD(appendplans);
 310         WRITE_BOOL_FIELD(isTarget);
 311 }
 312
 313 static void
 314 _outScan(StringInfo str, Scan *node)
 315 {
 316         WRITE_NODE_TYPE("SCAN");
 317
 318         _outScanInfo(str, (Scan *) node);
 319 }
 320
 321 static void
 322 _outSeqScan(StringInfo str, SeqScan *node)
 323 {
 324         WRITE_NODE_TYPE("SEQSCAN");
 325
 326         _outScanInfo(str, (Scan *) node);
 327 }
 328
 329 static void
 330 _outIndexScan(StringInfo str, IndexScan *node)
 331 {
 332         WRITE_NODE_TYPE("INDEXSCAN");
 333
 334         _outScanInfo(str, (Scan *) node);
 335
 336         WRITE_OIDLIST_FIELD(indxid);
 337         WRITE_NODE_FIELD(indxqual);
 338         WRITE_NODE_FIELD(indxqualorig);
 339         /* this can become WRITE_NODE_FIELD when intlists are normal objects: */
 340         {
 341                 List    *tmp;
 342
 343                 appendStringInfo(str, " :indxstrategy ");
 344                 foreach(tmp, node->indxstrategy)
 345                 {
 346                         _outIntList(str, lfirst(tmp));
 347                 }
 348         }
 349         /* this can become WRITE_NODE_FIELD when OID lists are normal objects: */
 350         {
 351                 List    *tmp;
 352
 353                 appendStringInfo(str, " :indxsubtype ");
 354                 foreach(tmp, node->indxsubtype)
 355                 {
 356                         _outOidList(str, lfirst(tmp));
 357                 }
 358         }
 359         WRITE_ENUM_FIELD(indxorderdir, ScanDirection);
 360 }
 361
 362 static void
 363 _outTidScan(StringInfo str, TidScan *node)
 364 {
 365         WRITE_NODE_TYPE("TIDSCAN");
 366
 367         _outScanInfo(str, (Scan *) node);
 368
 369         WRITE_NODE_FIELD(tideval);
 370 }
 371
 372 static void
 373 _outSubqueryScan(StringInfo str, SubqueryScan *node)
 374 {
 375         WRITE_NODE_TYPE("SUBQUERYSCAN");
 376
 377         _outScanInfo(str, (Scan *) node);
 378
 379         WRITE_NODE_FIELD(subplan);
 380 }
 381
 382 static void
 383 _outFunctionScan(StringInfo str, FunctionScan *node)
 384 {
 385         WRITE_NODE_TYPE("FUNCTIONSCAN");
 386
 387         _outScanInfo(str, (Scan *) node);
 388 }
 389
 390 static void
 391 _outJoin(StringInfo str, Join *node)
 392 {
 393         WRITE_NODE_TYPE("JOIN");
 394
 395         _outJoinPlanInfo(str, (Join *) node);
 396 }
 397
 398 static void
 399 _outNestLoop(StringInfo str, NestLoop *node)
 400 {
 401         WRITE_NODE_TYPE("NESTLOOP");
 402
 403         _outJoinPlanInfo(str, (Join *) node);
 404 }
 405
 406 static void
 407 _outMergeJoin(StringInfo str, MergeJoin *node)
 408 {
 409         WRITE_NODE_TYPE("MERGEJOIN");
 410
 411         _outJoinPlanInfo(str, (Join *) node);
 412
 413         WRITE_NODE_FIELD(mergeclauses);
 414 }
 415
 416 static void
 417 _outHashJoin(StringInfo str, HashJoin *node)
 418 {
 419         WRITE_NODE_TYPE("HASHJOIN");
 420
 421         _outJoinPlanInfo(str, (Join *) node);
 422
 423         WRITE_NODE_FIELD(hashclauses);
 424 }
 425
 426 static void
 427 _outAgg(StringInfo str, Agg *node)
 428 {
 429         WRITE_NODE_TYPE("AGG");
 430
 431         _outPlanInfo(str, (Plan *) node);
 432
 433         WRITE_ENUM_FIELD(aggstrategy, AggStrategy);
 434         WRITE_INT_FIELD(numCols);
 435         WRITE_LONG_FIELD(numGroups);
 436 }
 437
 438 static void
 439 _outGroup(StringInfo str, Group *node)
 440 {
 441         int                     i;
 442
 443         WRITE_NODE_TYPE("GROUP");
 444
 445         _outPlanInfo(str, (Plan *) node);
 446
 447         WRITE_INT_FIELD(numCols);
 448
 449         appendStringInfo(str, " :grpColIdx");
 450         for (i = 0; i < node->numCols; i++)
 451                 appendStringInfo(str, " %d", node->grpColIdx[i]);
 452 }
 453
 454 static void
 455 _outMaterial(StringInfo str, Material *node)
 456 {
 457         WRITE_NODE_TYPE("MATERIAL");
 458
 459         _outPlanInfo(str, (Plan *) node);
 460 }
 461
 462 static void
 463 _outSort(StringInfo str, Sort *node)
 464 {
 465         int                     i;
 466
 467         WRITE_NODE_TYPE("SORT");
 468
 469         _outPlanInfo(str, (Plan *) node);
 470
 471         WRITE_INT_FIELD(numCols);
 472
 473         appendStringInfo(str, " :sortColIdx");
 474         for (i = 0; i < node->numCols; i++)
 475                 appendStringInfo(str, " %d", node->sortColIdx[i]);
 476
 477         appendStringInfo(str, " :sortOperators");
 478         for (i = 0; i < node->numCols; i++)
 479                 appendStringInfo(str, " %u", node->sortOperators[i]);
 480 }
 481
 482 static void
 483 _outUnique(StringInfo str, Unique *node)
 484 {
 485         int                     i;
 486
 487         WRITE_NODE_TYPE("UNIQUE");
 488
 489         _outPlanInfo(str, (Plan *) node);
 490
 491         WRITE_INT_FIELD(numCols);
 492
 493         appendStringInfo(str, " :uniqColIdx");
 494         for (i = 0; i < node->numCols; i++)
 495                 appendStringInfo(str, " %d", node->uniqColIdx[i]);
 496 }
 497
 498 static void
 499 _outSetOp(StringInfo str, SetOp *node)
 500 {
 501         int                     i;
 502
 503         WRITE_NODE_TYPE("SETOP");
 504
 505         _outPlanInfo(str, (Plan *) node);
 506
 507         WRITE_ENUM_FIELD(cmd, SetOpCmd);
 508         WRITE_INT_FIELD(numCols);
 509
 510         appendStringInfo(str, " :dupColIdx");
 511         for (i = 0; i < node->numCols; i++)
 512                 appendStringInfo(str, " %d", node->dupColIdx[i]);
 513
 514         WRITE_INT_FIELD(flagColIdx);
 515 }
 516
 517 static void
 518 _outLimit(StringInfo str, Limit *node)
 519 {
 520         WRITE_NODE_TYPE("LIMIT");
 521
 522         _outPlanInfo(str, (Plan *) node);
 523
 524         WRITE_NODE_FIELD(limitOffset);
 525         WRITE_NODE_FIELD(limitCount);
 526 }
 527
 528 static void
 529 _outHash(StringInfo str, Hash *node)
 530 {
 531         WRITE_NODE_TYPE("HASH");
 532
 533         _outPlanInfo(str, (Plan *) node);
 534 }
 535
 536 /*****************************************************************************
 537  *
 538  *      Stuff from primnodes.h.
 539  *
 540  *****************************************************************************/
 541
 542 static void
 543 _outResdom(StringInfo str, Resdom *node)
 544 {
 545         WRITE_NODE_TYPE("RESDOM");
 546
 547         WRITE_INT_FIELD(resno);
 548         WRITE_OID_FIELD(restype);
 549         WRITE_INT_FIELD(restypmod);
 550         WRITE_STRING_FIELD(resname);
 551         WRITE_UINT_FIELD(ressortgroupref);
 552         WRITE_OID_FIELD(resorigtbl);
 553         WRITE_INT_FIELD(resorigcol);
 554         WRITE_BOOL_FIELD(resjunk);
 555 }
 556
 557 static void
 558 _outAlias(StringInfo str, Alias *node)
 559 {
 560         WRITE_NODE_TYPE("ALIAS");
 561
 562         WRITE_STRING_FIELD(aliasname);
 563         WRITE_NODE_FIELD(colnames);
 564 }
 565
 566 static void
 567 _outRangeVar(StringInfo str, RangeVar *node)
 568 {
 569         WRITE_NODE_TYPE("RANGEVAR");
 570
 571         /*
 572          * we deliberately ignore catalogname here, since it is presently not
 573          * semantically meaningful
 574          */
 575         WRITE_STRING_FIELD(schemaname);
 576         WRITE_STRING_FIELD(relname);
 577         WRITE_ENUM_FIELD(inhOpt, InhOption);
 578         WRITE_BOOL_FIELD(istemp);
 579         WRITE_NODE_FIELD(alias);
 580 }
 581
 582 static void
 583 _outVar(StringInfo str, Var *node)
 584 {
 585         WRITE_NODE_TYPE("VAR");
 586
 587         WRITE_UINT_FIELD(varno);
 588         WRITE_INT_FIELD(varattno);
 589         WRITE_OID_FIELD(vartype);
 590         WRITE_INT_FIELD(vartypmod);
 591         WRITE_UINT_FIELD(varlevelsup);
 592         WRITE_UINT_FIELD(varnoold);
 593         WRITE_INT_FIELD(varoattno);
 594 }
 595
 596 static void
 597 _outConst(StringInfo str, Const *node)
 598 {
 599         WRITE_NODE_TYPE("CONST");
 600
 601         WRITE_OID_FIELD(consttype);
 602         WRITE_INT_FIELD(constlen);
 603         WRITE_BOOL_FIELD(constbyval);
 604         WRITE_BOOL_FIELD(constisnull);
 605
 606         appendStringInfo(str, " :constvalue ");
 607         if (node->constisnull)
 608                 appendStringInfo(str, "<>");
 609         else
 610                 _outDatum(str, node->constvalue, node->constlen, node->constbyval);
 611 }
 612
 613 static void
 614 _outParam(StringInfo str, Param *node)
 615 {
 616         WRITE_NODE_TYPE("PARAM");
 617
 618         WRITE_INT_FIELD(paramkind);
 619         WRITE_INT_FIELD(paramid);
 620         WRITE_STRING_FIELD(paramname);
 621         WRITE_OID_FIELD(paramtype);
 622 }
 623
 624 static void
 625 _outAggref(StringInfo str, Aggref *node)
 626 {
 627         WRITE_NODE_TYPE("AGGREF");
 628
 629         WRITE_OID_FIELD(aggfnoid);
 630         WRITE_OID_FIELD(aggtype);
 631         WRITE_NODE_FIELD(target);
 632         WRITE_UINT_FIELD(agglevelsup);
 633         WRITE_BOOL_FIELD(aggstar);
 634         WRITE_BOOL_FIELD(aggdistinct);
 635 }
 636
 637 static void
 638 _outArrayRef(StringInfo str, ArrayRef *node)
 639 {
 640         WRITE_NODE_TYPE("ARRAYREF");
 641
 642         WRITE_OID_FIELD(refrestype);
 643         WRITE_OID_FIELD(refarraytype);
 644         WRITE_OID_FIELD(refelemtype);
 645         WRITE_NODE_FIELD(refupperindexpr);
 646         WRITE_NODE_FIELD(reflowerindexpr);
 647         WRITE_NODE_FIELD(refexpr);
 648         WRITE_NODE_FIELD(refassgnexpr);
 649 }
 650
 651 static void
 652 _outFuncExpr(StringInfo str, FuncExpr *node)
 653 {
 654         WRITE_NODE_TYPE("FUNCEXPR");
 655
 656         WRITE_OID_FIELD(funcid);
 657         WRITE_OID_FIELD(funcresulttype);
 658         WRITE_BOOL_FIELD(funcretset);
 659         WRITE_ENUM_FIELD(funcformat, CoercionForm);
 660         WRITE_NODE_FIELD(args);
 661 }
 662
 663 static void
 664 _outOpExpr(StringInfo str, OpExpr *node)
 665 {
 666         WRITE_NODE_TYPE("OPEXPR");
 667
 668         WRITE_OID_FIELD(opno);
 669         WRITE_OID_FIELD(opfuncid);
 670         WRITE_OID_FIELD(opresulttype);
 671         WRITE_BOOL_FIELD(opretset);
 672         WRITE_NODE_FIELD(args);
 673 }
 674
 675 static void
 676 _outDistinctExpr(StringInfo str, DistinctExpr *node)
 677 {
 678         WRITE_NODE_TYPE("DISTINCTEXPR");
 679
 680         WRITE_OID_FIELD(opno);
 681         WRITE_OID_FIELD(opfuncid);
 682         WRITE_OID_FIELD(opresulttype);
 683         WRITE_BOOL_FIELD(opretset);
 684         WRITE_NODE_FIELD(args);
 685 }
 686
 687 static void
 688 _outScalarArrayOpExpr(StringInfo str, ScalarArrayOpExpr *node)
 689 {
 690         WRITE_NODE_TYPE("SCALARARRAYOPEXPR");
 691
 692         WRITE_OID_FIELD(opno);
 693         WRITE_OID_FIELD(opfuncid);
 694         WRITE_BOOL_FIELD(useOr);
 695         WRITE_NODE_FIELD(args);
 696 }
 697
 698 static void
 699 _outBoolExpr(StringInfo str, BoolExpr *node)
 700 {
 701         char       *opstr = NULL;
 702
 703         WRITE_NODE_TYPE("BOOLEXPR");
 704
 705         /* do-it-yourself enum representation */
 706         switch (node->boolop)
 707         {
 708                 case AND_EXPR:
 709                         opstr = "and";
 710                         break;
 711                 case OR_EXPR:
 712                         opstr = "or";
 713                         break;
 714                 case NOT_EXPR:
 715                         opstr = "not";
 716                         break;
 717         }
 718         appendStringInfo(str, " :boolop ");
 719         _outToken(str, opstr);
 720
 721         WRITE_NODE_FIELD(args);
 722 }
 723
 724 static void
 725 _outSubLink(StringInfo str, SubLink *node)
 726 {
 727         WRITE_NODE_TYPE("SUBLINK");
 728
 729         WRITE_ENUM_FIELD(subLinkType, SubLinkType);
 730         WRITE_BOOL_FIELD(useOr);
 731         WRITE_NODE_FIELD(lefthand);
 732         WRITE_NODE_FIELD(operName);
 733         WRITE_OIDLIST_FIELD(operOids);
 734         WRITE_NODE_FIELD(subselect);
 735 }
 736
 737 static void
 738 _outSubPlan(StringInfo str, SubPlan *node)
 739 {
 740         WRITE_NODE_TYPE("SUBPLAN");
 741
 742         WRITE_ENUM_FIELD(subLinkType, SubLinkType);
 743         WRITE_BOOL_FIELD(useOr);
 744         WRITE_NODE_FIELD(exprs);
 745         WRITE_INTLIST_FIELD(paramIds);
 746         WRITE_NODE_FIELD(plan);
 747         WRITE_INT_FIELD(plan_id);
 748         WRITE_NODE_FIELD(rtable);
 749         WRITE_BOOL_FIELD(useHashTable);
 750         WRITE_BOOL_FIELD(unknownEqFalse);
 751         WRITE_INTLIST_FIELD(setParam);
 752         WRITE_INTLIST_FIELD(parParam);
 753         WRITE_NODE_FIELD(args);
 754 }
 755
 756 static void
 757 _outFieldSelect(StringInfo str, FieldSelect *node)
 758 {
 759         WRITE_NODE_TYPE("FIELDSELECT");
 760
 761         WRITE_NODE_FIELD(arg);
 762         WRITE_INT_FIELD(fieldnum);
 763         WRITE_OID_FIELD(resulttype);
 764         WRITE_INT_FIELD(resulttypmod);
 765 }
 766
 767 static void
 768 _outRelabelType(StringInfo str, RelabelType *node)
 769 {
 770         WRITE_NODE_TYPE("RELABELTYPE");
 771
 772         WRITE_NODE_FIELD(arg);
 773         WRITE_OID_FIELD(resulttype);
 774         WRITE_INT_FIELD(resulttypmod);
 775         WRITE_ENUM_FIELD(relabelformat, CoercionForm);
 776 }
 777
 778 static void
 779 _outCaseExpr(StringInfo str, CaseExpr *node)
 780 {
 781         WRITE_NODE_TYPE("CASE");
 782
 783         WRITE_OID_FIELD(casetype);
 784         WRITE_NODE_FIELD(arg);
 785         WRITE_NODE_FIELD(args);
 786         WRITE_NODE_FIELD(defresult);
 787 }
 788
 789 static void
 790 _outCaseWhen(StringInfo str, CaseWhen *node)
 791 {
 792         WRITE_NODE_TYPE("WHEN");
 793
 794         WRITE_NODE_FIELD(expr);
 795         WRITE_NODE_FIELD(result);
 796 }
 797
 798 static void
 799 _outArrayExpr(StringInfo str, ArrayExpr *node)
 800 {
 801         WRITE_NODE_TYPE("ARRAY");
 802
 803         WRITE_OID_FIELD(array_typeid);
 804         WRITE_OID_FIELD(element_typeid);
 805         WRITE_NODE_FIELD(elements);
 806         WRITE_BOOL_FIELD(multidims);
 807 }
 808
 809 static void
 810 _outCoalesceExpr(StringInfo str, CoalesceExpr *node)
 811 {
 812         WRITE_NODE_TYPE("COALESCE");
 813
 814         WRITE_OID_FIELD(coalescetype);
 815         WRITE_NODE_FIELD(args);
 816 }
 817
 818 static void
 819 _outNullIfExpr(StringInfo str, NullIfExpr *node)
 820 {
 821         WRITE_NODE_TYPE("NULLIFEXPR");
 822
 823         WRITE_OID_FIELD(opno);
 824         WRITE_OID_FIELD(opfuncid);
 825         WRITE_OID_FIELD(opresulttype);
 826         WRITE_BOOL_FIELD(opretset);
 827         WRITE_NODE_FIELD(args);
 828 }
 829
 830 static void
 831 _outNullTest(StringInfo str, NullTest *node)
 832 {
 833         WRITE_NODE_TYPE("NULLTEST");
 834
 835         WRITE_NODE_FIELD(arg);
 836         WRITE_ENUM_FIELD(nulltesttype, NullTestType);
 837 }
 838
 839 static void
 840 _outBooleanTest(StringInfo str, BooleanTest *node)
 841 {
 842         WRITE_NODE_TYPE("BOOLEANTEST");
 843
 844         WRITE_NODE_FIELD(arg);
 845         WRITE_ENUM_FIELD(booltesttype, BoolTestType);
 846 }
 847
 848 static void
 849 _outCoerceToDomain(StringInfo str, CoerceToDomain *node)
 850 {
 851         WRITE_NODE_TYPE("COERCETODOMAIN");
 852
 853         WRITE_NODE_FIELD(arg);
 854         WRITE_OID_FIELD(resulttype);
 855         WRITE_INT_FIELD(resulttypmod);
 856         WRITE_ENUM_FIELD(coercionformat, CoercionForm);
 857 }
 858
 859 static void
 860 _outCoerceToDomainValue(StringInfo str, CoerceToDomainValue *node)
 861 {
 862         WRITE_NODE_TYPE("COERCETODOMAINVALUE");
 863
 864         WRITE_OID_FIELD(typeId);
 865         WRITE_INT_FIELD(typeMod);
 866 }
 867
 868 static void
 869 _outSetToDefault(StringInfo str, SetToDefault *node)
 870 {
 871         WRITE_NODE_TYPE("SETTODEFAULT");
 872
 873         WRITE_OID_FIELD(typeId);
 874         WRITE_INT_FIELD(typeMod);
 875 }
 876
 877 static void
 878 _outTargetEntry(StringInfo str, TargetEntry *node)
 879 {
 880         WRITE_NODE_TYPE("TARGETENTRY");
 881
 882         WRITE_NODE_FIELD(resdom);
 883         WRITE_NODE_FIELD(expr);
 884 }
 885
 886 static void
 887 _outRangeTblRef(StringInfo str, RangeTblRef *node)
 888 {
 889         WRITE_NODE_TYPE("RANGETBLREF");
 890
 891         WRITE_INT_FIELD(rtindex);
 892 }
 893
 894 static void
 895 _outJoinExpr(StringInfo str, JoinExpr *node)
 896 {
 897         WRITE_NODE_TYPE("JOINEXPR");
 898
 899         WRITE_ENUM_FIELD(jointype, JoinType);
 900         WRITE_BOOL_FIELD(isNatural);
 901         WRITE_NODE_FIELD(larg);
 902         WRITE_NODE_FIELD(rarg);
 903         WRITE_NODE_FIELD(using);
 904         WRITE_NODE_FIELD(quals);
 905         WRITE_NODE_FIELD(alias);
 906         WRITE_INT_FIELD(rtindex);
 907 }
 908
 909 static void
 910 _outFromExpr(StringInfo str, FromExpr *node)
 911 {
 912         WRITE_NODE_TYPE("FROMEXPR");
 913
 914         WRITE_NODE_FIELD(fromlist);
 915         WRITE_NODE_FIELD(quals);
 916 }
 917
 918 /*****************************************************************************
 919  *
 920  *      Stuff from relation.h.
 921  *
 922  *****************************************************************************/
 923
 924 /*
 925  * print the basic stuff of all nodes that inherit from Path
 926  *
 927  * Note we do NOT print the parent, else we'd be in infinite recursion
 928  */
 929 static void
 930 _outPathInfo(StringInfo str, Path *node)
 931 {
 932         WRITE_ENUM_FIELD(pathtype, NodeTag);
 933         WRITE_FLOAT_FIELD(startup_cost, "%.2f");
 934         WRITE_FLOAT_FIELD(total_cost, "%.2f");
 935         WRITE_NODE_FIELD(pathkeys);
 936 }
 937
 938 /*
 939  * print the basic stuff of all nodes that inherit from JoinPath
 940  */
 941 static void
 942 _outJoinPathInfo(StringInfo str, JoinPath *node)
 943 {
 944         _outPathInfo(str, (Path *) node);
 945
 946         WRITE_ENUM_FIELD(jointype, JoinType);
 947         WRITE_NODE_FIELD(outerjoinpath);
 948         WRITE_NODE_FIELD(innerjoinpath);
 949         WRITE_NODE_FIELD(joinrestrictinfo);
 950 }
 951
 952 static void
 953 _outPath(StringInfo str, Path *node)
 954 {
 955         WRITE_NODE_TYPE("PATH");
 956
 957         _outPathInfo(str, (Path *) node);
 958 }
 959
 960 /*
 961  *      IndexPath is a subclass of Path.
 962  */
 963 static void
 964 _outIndexPath(StringInfo str, IndexPath *node)
 965 {
 966         WRITE_NODE_TYPE("INDEXPATH");
 967
 968         _outPathInfo(str, (Path *) node);
 969
 970         WRITE_NODE_FIELD(indexinfo);
 971         WRITE_NODE_FIELD(indexqual);
 972         WRITE_NODE_FIELD(indexjoinclauses);
 973         WRITE_ENUM_FIELD(indexscandir, ScanDirection);
 974         WRITE_FLOAT_FIELD(rows, "%.2f");
 975 }
 976
 977 static void
 978 _outTidPath(StringInfo str, TidPath *node)
 979 {
 980         WRITE_NODE_TYPE("TIDPATH");
 981
 982         _outPathInfo(str, (Path *) node);
 983
 984         WRITE_NODE_FIELD(tideval);
 985 }
 986
 987 static void
 988 _outAppendPath(StringInfo str, AppendPath *node)
 989 {
 990         WRITE_NODE_TYPE("APPENDPATH");
 991
 992         _outPathInfo(str, (Path *) node);
 993
 994         WRITE_NODE_FIELD(subpaths);
 995 }
 996
 997 static void
 998 _outResultPath(StringInfo str, ResultPath *node)
 999 {
1000         WRITE_NODE_TYPE("RESULTPATH");
1001
1002         _outPathInfo(str, (Path *) node);
1003
1004         WRITE_NODE_FIELD(subpath);
1005         WRITE_NODE_FIELD(constantqual);
1006 }
1007
1008 static void
1009 _outMaterialPath(StringInfo str, MaterialPath *node)
1010 {
1011         WRITE_NODE_TYPE("MATERIALPATH");
1012
1013         _outPathInfo(str, (Path *) node);
1014
1015         WRITE_NODE_FIELD(subpath);
1016 }
1017
1018 static void
1019 _outUniquePath(StringInfo str, UniquePath *node)
1020 {
1021         WRITE_NODE_TYPE("UNIQUEPATH");
1022
1023         _outPathInfo(str, (Path *) node);
1024
1025         WRITE_NODE_FIELD(subpath);
1026         WRITE_BOOL_FIELD(use_hash);
1027         WRITE_FLOAT_FIELD(rows, "%.0f");
1028 }
1029
1030 static void
1031 _outNestPath(StringInfo str, NestPath *node)
1032 {
1033         WRITE_NODE_TYPE("NESTPATH");
1034
1035         _outJoinPathInfo(str, (JoinPath *) node);
1036 }
1037
1038 static void
1039 _outMergePath(StringInfo str, MergePath *node)
1040 {
1041         WRITE_NODE_TYPE("MERGEPATH");
1042
1043         _outJoinPathInfo(str, (JoinPath *) node);
1044
1045         WRITE_NODE_FIELD(path_mergeclauses);
1046         WRITE_NODE_FIELD(outersortkeys);
1047         WRITE_NODE_FIELD(innersortkeys);
1048 }
1049
1050 static void
1051 _outHashPath(StringInfo str, HashPath *node)
1052 {
1053         WRITE_NODE_TYPE("HASHPATH");
1054
1055         _outJoinPathInfo(str, (JoinPath *) node);
1056
1057         WRITE_NODE_FIELD(path_hashclauses);
1058 }
1059
1060 static void
1061 _outPathKeyItem(StringInfo str, PathKeyItem *node)
1062 {
1063         WRITE_NODE_TYPE("PATHKEYITEM");
1064
1065         WRITE_NODE_FIELD(key);
1066         WRITE_OID_FIELD(sortop);
1067 }
1068
1069 static void
1070 _outRestrictInfo(StringInfo str, RestrictInfo *node)
1071 {
1072         WRITE_NODE_TYPE("RESTRICTINFO");
1073
1074         /* NB: this isn't a complete set of fields */
1075         WRITE_NODE_FIELD(clause);
1076         WRITE_BOOL_FIELD(ispusheddown);
1077         WRITE_BOOL_FIELD(canjoin);
1078         WRITE_BITMAPSET_FIELD(left_relids);
1079         WRITE_BITMAPSET_FIELD(right_relids);
1080         WRITE_NODE_FIELD(orclause);
1081         WRITE_OID_FIELD(mergejoinoperator);
1082         WRITE_OID_FIELD(left_sortop);
1083         WRITE_OID_FIELD(right_sortop);
1084         WRITE_NODE_FIELD(left_pathkey);
1085         WRITE_NODE_FIELD(right_pathkey);
1086         WRITE_OID_FIELD(hashjoinoperator);
1087 }
1088
1089 static void
1090 _outJoinInfo(StringInfo str, JoinInfo *node)
1091 {
1092         WRITE_NODE_TYPE("JOININFO");
1093
1094         WRITE_BITMAPSET_FIELD(unjoined_relids);
1095         WRITE_NODE_FIELD(jinfo_restrictinfo);
1096 }
1097
1098 static void
1099 _outInClauseInfo(StringInfo str, InClauseInfo *node)
1100 {
1101         WRITE_NODE_TYPE("INCLAUSEINFO");
1102
1103         WRITE_BITMAPSET_FIELD(lefthand);
1104         WRITE_BITMAPSET_FIELD(righthand);
1105         WRITE_NODE_FIELD(sub_targetlist);
1106 }
1107
1108 /*****************************************************************************
1109  *
1110  *      Stuff from parsenodes.h.
1111  *
1112  *****************************************************************************/
1113
1114 static void
1115 _outCreateStmt(StringInfo str, CreateStmt *node)
1116 {
1117         WRITE_NODE_TYPE("CREATE");
1118
1119         WRITE_NODE_FIELD(relation);
1120         WRITE_NODE_FIELD(tableElts);
1121         WRITE_NODE_FIELD(inhRelations);
1122         WRITE_NODE_FIELD(constraints);
1123         WRITE_BOOL_FIELD(hasoids);
1124         WRITE_ENUM_FIELD(oncommit, OnCommitAction);
1125 }
1126
1127 static void
1128 _outIndexStmt(StringInfo str, IndexStmt *node)
1129 {
1130         WRITE_NODE_TYPE("INDEX");
1131
1132         WRITE_STRING_FIELD(idxname);
1133         WRITE_NODE_FIELD(relation);
1134         WRITE_STRING_FIELD(accessMethod);
1135         WRITE_NODE_FIELD(indexParams);
1136         WRITE_NODE_FIELD(whereClause);
1137         WRITE_NODE_FIELD(rangetable);
1138         WRITE_BOOL_FIELD(unique);
1139         WRITE_BOOL_FIELD(primary);
1140         WRITE_BOOL_FIELD(isconstraint);
1141 }
1142
1143 static void
1144 _outNotifyStmt(StringInfo str, NotifyStmt *node)
1145 {
1146         WRITE_NODE_TYPE("NOTIFY");
1147
1148         WRITE_NODE_FIELD(relation);
1149 }
1150
1151 static void
1152 _outDeclareCursorStmt(StringInfo str, DeclareCursorStmt *node)
1153 {
1154         WRITE_NODE_TYPE("DECLARECURSOR");
1155
1156         WRITE_STRING_FIELD(portalname);
1157         WRITE_INT_FIELD(options);
1158         WRITE_NODE_FIELD(query);
1159 }
1160
1161 static void
1162 _outSelectStmt(StringInfo str, SelectStmt *node)
1163 {
1164         WRITE_NODE_TYPE("SELECT");
1165
1166         /* XXX this is pretty durn incomplete */
1167         WRITE_NODE_FIELD(whereClause);
1168 }
1169
1170 static void
1171 _outFuncCall(StringInfo str, FuncCall *node)
1172 {
1173         WRITE_NODE_TYPE("FUNCCALL");
1174
1175         WRITE_NODE_FIELD(funcname);
1176         WRITE_NODE_FIELD(args);
1177         WRITE_BOOL_FIELD(agg_star);
1178         WRITE_BOOL_FIELD(agg_distinct);
1179 }
1180
1181 static void
1182 _outColumnDef(StringInfo str, ColumnDef *node)
1183 {
1184         WRITE_NODE_TYPE("COLUMNDEF");
1185
1186         WRITE_STRING_FIELD(colname);
1187         WRITE_NODE_FIELD(typename);
1188         WRITE_INT_FIELD(inhcount);
1189         WRITE_BOOL_FIELD(is_local);
1190         WRITE_BOOL_FIELD(is_not_null);
1191         WRITE_NODE_FIELD(raw_default);
1192         WRITE_STRING_FIELD(cooked_default);
1193         WRITE_NODE_FIELD(constraints);
1194         WRITE_NODE_FIELD(support);
1195 }
1196
1197 static void
1198 _outTypeName(StringInfo str, TypeName *node)
1199 {
1200         WRITE_NODE_TYPE("TYPENAME");
1201
1202         WRITE_NODE_FIELD(names);
1203         WRITE_OID_FIELD(typeid);
1204         WRITE_BOOL_FIELD(timezone);
1205         WRITE_BOOL_FIELD(setof);
1206         WRITE_BOOL_FIELD(pct_type);
1207         WRITE_INT_FIELD(typmod);
1208         WRITE_NODE_FIELD(arrayBounds);
1209 }
1210
1211 static void
1212 _outTypeCast(StringInfo str, TypeCast *node)
1213 {
1214         WRITE_NODE_TYPE("TYPECAST");
1215
1216         WRITE_NODE_FIELD(arg);
1217         WRITE_NODE_FIELD(typename);
1218 }
1219
1220 static void
1221 _outIndexElem(StringInfo str, IndexElem *node)
1222 {
1223         WRITE_NODE_TYPE("INDEXELEM");
1224
1225         WRITE_STRING_FIELD(name);
1226         WRITE_NODE_FIELD(expr);
1227         WRITE_NODE_FIELD(opclass);
1228 }
1229
1230 static void
1231 _outQuery(StringInfo str, Query *node)
1232 {
1233         WRITE_NODE_TYPE("QUERY");
1234
1235         WRITE_ENUM_FIELD(commandType, CmdType);
1236         WRITE_ENUM_FIELD(querySource, QuerySource);
1237         WRITE_BOOL_FIELD(canSetTag);
1238
1239         /*
1240          * Hack to work around missing outfuncs routines for a lot of the
1241          * utility-statement node types.  (The only one we actually *need* for
1242          * rules support is NotifyStmt.)  Someday we ought to support 'em all,
1243          * but for the meantime do this to avoid getting lots of warnings when
1244          * running with debug_print_parse on.
1245          */
1246         if (node->utilityStmt)
1247         {
1248                 switch (nodeTag(node->utilityStmt))
1249                 {
1250                         case T_CreateStmt:
1251                         case T_IndexStmt:
1252                         case T_NotifyStmt:
1253                         case T_DeclareCursorStmt:
1254                                 WRITE_NODE_FIELD(utilityStmt);
1255                                 break;
1256                         default:
1257                                 appendStringInfo(str, " :utilityStmt ?");
1258                                 break;
1259                 }
1260         }
1261         else
1262                 appendStringInfo(str, " :utilityStmt <>");
1263
1264         WRITE_INT_FIELD(resultRelation);
1265         WRITE_NODE_FIELD(into);
1266         WRITE_BOOL_FIELD(hasAggs);
1267         WRITE_BOOL_FIELD(hasSubLinks);
1268         WRITE_NODE_FIELD(rtable);
1269         WRITE_NODE_FIELD(jointree);
1270         WRITE_INTLIST_FIELD(rowMarks);
1271         WRITE_NODE_FIELD(targetList);
1272         WRITE_NODE_FIELD(groupClause);
1273         WRITE_NODE_FIELD(havingQual);
1274         WRITE_NODE_FIELD(distinctClause);
1275         WRITE_NODE_FIELD(sortClause);
1276         WRITE_NODE_FIELD(limitOffset);
1277         WRITE_NODE_FIELD(limitCount);
1278         WRITE_NODE_FIELD(setOperations);
1279         WRITE_INTLIST_FIELD(resultRelations);
1280
1281         /* planner-internal fields are not written out */
1282 }
1283
1284 static void
1285 _outSortClause(StringInfo str, SortClause *node)
1286 {
1287         WRITE_NODE_TYPE("SORTCLAUSE");
1288
1289         WRITE_UINT_FIELD(tleSortGroupRef);
1290         WRITE_OID_FIELD(sortop);
1291 }
1292
1293 static void
1294 _outGroupClause(StringInfo str, GroupClause *node)
1295 {
1296         WRITE_NODE_TYPE("GROUPCLAUSE");
1297
1298         WRITE_UINT_FIELD(tleSortGroupRef);
1299         WRITE_OID_FIELD(sortop);
1300 }
1301
1302 static void
1303 _outSetOperationStmt(StringInfo str, SetOperationStmt *node)
1304 {
1305         WRITE_NODE_TYPE("SETOPERATIONSTMT");
1306
1307         WRITE_ENUM_FIELD(op, SetOperation);
1308         WRITE_BOOL_FIELD(all);
1309         WRITE_NODE_FIELD(larg);
1310         WRITE_NODE_FIELD(rarg);
1311         WRITE_OIDLIST_FIELD(colTypes);
1312 }
1313
1314 static void
1315 _outRangeTblEntry(StringInfo str, RangeTblEntry *node)
1316 {
1317         WRITE_NODE_TYPE("RTE");
1318
1319         /* put alias + eref first to make dump more legible */
1320         WRITE_NODE_FIELD(alias);
1321         WRITE_NODE_FIELD(eref);
1322         WRITE_ENUM_FIELD(rtekind, RTEKind);
1323
1324         switch (node->rtekind)
1325         {
1326                 case RTE_RELATION:
1327                 case RTE_SPECIAL:
1328                         WRITE_OID_FIELD(relid);
1329                         break;
1330                 case RTE_SUBQUERY:
1331                         WRITE_NODE_FIELD(subquery);
1332                         break;
1333                 case RTE_FUNCTION:
1334                         WRITE_NODE_FIELD(funcexpr);
1335                         WRITE_NODE_FIELD(coldeflist);
1336                         break;
1337                 case RTE_JOIN:
1338                         WRITE_ENUM_FIELD(jointype, JoinType);
1339                         WRITE_NODE_FIELD(joinaliasvars);
1340                         break;
1341                 default:
1342                         elog(ERROR, "unrecognized RTE kind: %d", (int) node->rtekind);
1343                         break;
1344         }
1345
1346         WRITE_BOOL_FIELD(inh);
1347         WRITE_BOOL_FIELD(inFromCl);
1348         WRITE_BOOL_FIELD(checkForRead);
1349         WRITE_BOOL_FIELD(checkForWrite);
1350         WRITE_OID_FIELD(checkAsUser);
1351 }
1352
1353 static void
1354 _outAExpr(StringInfo str, A_Expr *node)
1355 {
1356         WRITE_NODE_TYPE("AEXPR");
1357
1358         switch (node->kind)
1359         {
1360                 case AEXPR_OP:
1361                         appendStringInfo(str, " ");
1362                         WRITE_NODE_FIELD(name);
1363                         break;
1364                 case AEXPR_AND:
1365                         appendStringInfo(str, " AND");
1366                         break;
1367                 case AEXPR_OR:
1368                         appendStringInfo(str, " OR");
1369                         break;
1370                 case AEXPR_NOT:
1371                         appendStringInfo(str, " NOT");
1372                         break;
1373                 case AEXPR_OP_ANY:
1374                         appendStringInfo(str, " ");
1375                         WRITE_NODE_FIELD(name);
1376                         appendStringInfo(str, " ANY ");
1377                         break;
1378                 case AEXPR_OP_ALL:
1379                         appendStringInfo(str, " ");
1380                         WRITE_NODE_FIELD(name);
1381                         appendStringInfo(str, " ALL ");
1382                         break;
1383                 case AEXPR_DISTINCT:
1384                         appendStringInfo(str, " DISTINCT ");
1385                         WRITE_NODE_FIELD(name);
1386                         break;
1387                 case AEXPR_NULLIF:
1388                         appendStringInfo(str, " NULLIF ");
1389                         WRITE_NODE_FIELD(name);
1390                         break;
1391                 case AEXPR_OF:
1392                         appendStringInfo(str, " OF ");
1393                         WRITE_NODE_FIELD(name);
1394                         break;
1395                 default:
1396                         appendStringInfo(str, " ??");
1397                         break;
1398         }
1399
1400         WRITE_NODE_FIELD(lexpr);
1401         WRITE_NODE_FIELD(rexpr);
1402 }
1403
1404 static void
1405 _outValue(StringInfo str, Value *value)
1406 {
1407         switch (value->type)
1408         {
1409                 case T_Integer:
1410                         appendStringInfo(str, "%ld", value->val.ival);
1411                         break;
1412                 case T_Float:
1413
1414                         /*
1415                          * We assume the value is a valid numeric literal and so does
1416                          * not need quoting.
1417                          */
1418                         appendStringInfo(str, "%s", value->val.str);
1419                         break;
1420                 case T_String:
1421                         appendStringInfoChar(str, '"');
1422                         _outToken(str, value->val.str);
1423                         appendStringInfoChar(str, '"');
1424                         break;
1425                 case T_BitString:
1426                         /* internal representation already has leading 'b' */
1427                         appendStringInfo(str, "%s", value->val.str);
1428                         break;
1429                 default:
1430                         elog(ERROR, "unrecognized node type: %d", (int) value->type);
1431                         break;
1432         }
1433 }
1434
1435 static void
1436 _outColumnRef(StringInfo str, ColumnRef *node)
1437 {
1438         WRITE_NODE_TYPE("COLUMNREF");
1439
1440         WRITE_NODE_FIELD(fields);
1441         WRITE_NODE_FIELD(indirection);
1442 }
1443
1444 static void
1445 _outParamRef(StringInfo str, ParamRef *node)
1446 {
1447         WRITE_NODE_TYPE("PARAMREF");
1448
1449         WRITE_INT_FIELD(number);
1450         WRITE_NODE_FIELD(fields);
1451         WRITE_NODE_FIELD(indirection);
1452 }
1453
1454 static void
1455 _outAConst(StringInfo str, A_Const *node)
1456 {
1457         WRITE_NODE_TYPE("CONST ");
1458
1459         _outValue(str, &(node->val));
1460         WRITE_NODE_FIELD(typename);
1461 }
1462
1463 static void
1464 _outExprFieldSelect(StringInfo str, ExprFieldSelect *node)
1465 {
1466         WRITE_NODE_TYPE("EXPRFIELDSELECT");
1467
1468         WRITE_NODE_FIELD(arg);
1469         WRITE_NODE_FIELD(fields);
1470         WRITE_NODE_FIELD(indirection);
1471 }
1472
1473 static void
1474 _outConstraint(StringInfo str, Constraint *node)
1475 {
1476         WRITE_NODE_TYPE("CONSTRAINT");
1477
1478         WRITE_STRING_FIELD(name);
1479
1480         appendStringInfo(str, " :contype ");
1481         switch (node->contype)
1482         {
1483                 case CONSTR_PRIMARY:
1484                         appendStringInfo(str, "PRIMARY_KEY");
1485                         WRITE_NODE_FIELD(keys);
1486                         break;
1487
1488                 case CONSTR_CHECK:
1489                         appendStringInfo(str, "CHECK");
1490                         WRITE_NODE_FIELD(raw_expr);
1491                         WRITE_STRING_FIELD(cooked_expr);
1492                         break;
1493
1494                 case CONSTR_DEFAULT:
1495                         appendStringInfo(str, "DEFAULT");
1496                         WRITE_NODE_FIELD(raw_expr);
1497                         WRITE_STRING_FIELD(cooked_expr);
1498                         break;
1499
1500                 case CONSTR_NOTNULL:
1501                         appendStringInfo(str, "NOT_NULL");
1502                         break;
1503
1504                 case CONSTR_UNIQUE:
1505                         appendStringInfo(str, "UNIQUE");
1506                         WRITE_NODE_FIELD(keys);
1507                         break;
1508
1509                 default:
1510                         appendStringInfo(str, "<unrecognized_constraint>");
1511                         break;
1512         }
1513 }
1514
1515 static void
1516 _outFkConstraint(StringInfo str, FkConstraint *node)
1517 {
1518         WRITE_NODE_TYPE("FKCONSTRAINT");
1519
1520         WRITE_STRING_FIELD(constr_name);
1521         WRITE_NODE_FIELD(pktable);
1522         WRITE_NODE_FIELD(fk_attrs);
1523         WRITE_NODE_FIELD(pk_attrs);
1524         WRITE_CHAR_FIELD(fk_matchtype);
1525         WRITE_CHAR_FIELD(fk_upd_action);
1526         WRITE_CHAR_FIELD(fk_del_action);
1527         WRITE_BOOL_FIELD(deferrable);
1528         WRITE_BOOL_FIELD(initdeferred);
1529         WRITE_BOOL_FIELD(skip_validation);
1530 }
1531
1532
1533 /*
1534  * _outNode -
1535  *        converts a Node into ascii string and append it to 'str'
1536  */
1537 static void
1538 _outNode(StringInfo str, void *obj)
1539 {
1540         if (obj == NULL)
1541         {
1542                 appendStringInfo(str, "<>");
1543                 return;
1544         }
1545
1546         if (IsA(obj, List))
1547         {
1548                 List       *l;
1549
1550                 appendStringInfoChar(str, '(');
1551                 foreach(l, (List *) obj)
1552                 {
1553                         _outNode(str, lfirst(l));
1554                         if (lnext(l))
1555                                 appendStringInfoChar(str, ' ');
1556                 }
1557                 appendStringInfoChar(str, ')');
1558         }
1559         else if (IsA(obj, Integer) ||
1560                          IsA(obj, Float) ||
1561                          IsA(obj, String) ||
1562                          IsA(obj, BitString))
1563         {
1564                 /* nodeRead does not want to see { } around these! */
1565                 _outValue(str, obj);
1566         }
1567         else
1568         {
1569                 appendStringInfoChar(str, '{');
1570                 switch (nodeTag(obj))
1571                 {
1572                         case T_Plan:
1573                                 _outPlan(str, obj);
1574                                 break;
1575                         case T_Result:
1576                                 _outResult(str, obj);
1577                                 break;
1578                         case T_Append:
1579                                 _outAppend(str, obj);
1580                                 break;
1581                         case T_Scan:
1582                                 _outScan(str, obj);
1583                                 break;
1584                         case T_SeqScan:
1585                                 _outSeqScan(str, obj);
1586                                 break;
1587                         case T_IndexScan:
1588                                 _outIndexScan(str, obj);
1589                                 break;
1590                         case T_TidScan:
1591                                 _outTidScan(str, obj);
1592                                 break;
1593                         case T_SubqueryScan:
1594                                 _outSubqueryScan(str, obj);
1595                                 break;
1596                         case T_FunctionScan:
1597                                 _outFunctionScan(str, obj);
1598                                 break;
1599                         case T_Join:
1600                                 _outJoin(str, obj);
1601                                 break;
1602                         case T_NestLoop:
1603                                 _outNestLoop(str, obj);
1604                                 break;
1605                         case T_MergeJoin:
1606                                 _outMergeJoin(str, obj);
1607                                 break;
1608                         case T_HashJoin:
1609                                 _outHashJoin(str, obj);
1610                                 break;
1611                         case T_Agg:
1612                                 _outAgg(str, obj);
1613                                 break;
1614                         case T_Group:
1615                                 _outGroup(str, obj);
1616                                 break;
1617                         case T_Material:
1618                                 _outMaterial(str, obj);
1619                                 break;
1620                         case T_Sort:
1621                                 _outSort(str, obj);
1622                                 break;
1623                         case T_Unique:
1624                                 _outUnique(str, obj);
1625                                 break;
1626                         case T_SetOp:
1627                                 _outSetOp(str, obj);
1628                                 break;
1629                         case T_Limit:
1630                                 _outLimit(str, obj);
1631                                 break;
1632                         case T_Hash:
1633                                 _outHash(str, obj);
1634                                 break;
1635                         case T_Resdom:
1636                                 _outResdom(str, obj);
1637                                 break;
1638                         case T_Alias:
1639                                 _outAlias(str, obj);
1640                                 break;
1641                         case T_RangeVar:
1642                                 _outRangeVar(str, obj);
1643                                 break;
1644                         case T_Var:
1645                                 _outVar(str, obj);
1646                                 break;
1647                         case T_Const:
1648                                 _outConst(str, obj);
1649                                 break;
1650                         case T_Param:
1651                                 _outParam(str, obj);
1652                                 break;
1653                         case T_Aggref:
1654                                 _outAggref(str, obj);
1655                                 break;
1656                         case T_ArrayRef:
1657                                 _outArrayRef(str, obj);
1658                                 break;
1659                         case T_FuncExpr:
1660                                 _outFuncExpr(str, obj);
1661                                 break;
1662                         case T_OpExpr:
1663                                 _outOpExpr(str, obj);
1664                                 break;
1665                         case T_DistinctExpr:
1666                                 _outDistinctExpr(str, obj);
1667                                 break;
1668                         case T_ScalarArrayOpExpr:
1669                                 _outScalarArrayOpExpr(str, obj);
1670                                 break;
1671                         case T_BoolExpr:
1672                                 _outBoolExpr(str, obj);
1673                                 break;
1674                         case T_SubLink:
1675                                 _outSubLink(str, obj);
1676                                 break;
1677                         case T_SubPlan:
1678                                 _outSubPlan(str, obj);
1679                                 break;
1680                         case T_FieldSelect:
1681                                 _outFieldSelect(str, obj);
1682                                 break;
1683                         case T_RelabelType:
1684                                 _outRelabelType(str, obj);
1685                                 break;
1686                         case T_CaseExpr:
1687                                 _outCaseExpr(str, obj);
1688                                 break;
1689                         case T_CaseWhen:
1690                                 _outCaseWhen(str, obj);
1691                                 break;
1692                         case T_ArrayExpr:
1693                                 _outArrayExpr(str, obj);
1694                                 break;
1695                         case T_CoalesceExpr:
1696                                 _outCoalesceExpr(str, obj);
1697                                 break;
1698                         case T_NullIfExpr:
1699                                 _outNullIfExpr(str, obj);
1700                                 break;
1701                         case T_NullTest:
1702                                 _outNullTest(str, obj);
1703                                 break;
1704                         case T_BooleanTest:
1705                                 _outBooleanTest(str, obj);
1706                                 break;
1707                         case T_CoerceToDomain:
1708                                 _outCoerceToDomain(str, obj);
1709                                 break;
1710                         case T_CoerceToDomainValue:
1711                                 _outCoerceToDomainValue(str, obj);
1712                                 break;
1713                         case T_SetToDefault:
1714                                 _outSetToDefault(str, obj);
1715                                 break;
1716                         case T_TargetEntry:
1717                                 _outTargetEntry(str, obj);
1718                                 break;
1719                         case T_RangeTblRef:
1720                                 _outRangeTblRef(str, obj);
1721                                 break;
1722                         case T_JoinExpr:
1723                                 _outJoinExpr(str, obj);
1724                                 break;
1725                         case T_FromExpr:
1726                                 _outFromExpr(str, obj);
1727                                 break;
1728
1729                         case T_Path:
1730                                 _outPath(str, obj);
1731                                 break;
1732                         case T_IndexPath:
1733                                 _outIndexPath(str, obj);
1734                                 break;
1735                         case T_TidPath:
1736                                 _outTidPath(str, obj);
1737                                 break;
1738                         case T_AppendPath:
1739                                 _outAppendPath(str, obj);
1740                                 break;
1741                         case T_ResultPath:
1742                                 _outResultPath(str, obj);
1743                                 break;
1744                         case T_MaterialPath:
1745                                 _outMaterialPath(str, obj);
1746                                 break;
1747                         case T_UniquePath:
1748                                 _outUniquePath(str, obj);
1749                                 break;
1750                         case T_NestPath:
1751                                 _outNestPath(str, obj);
1752                                 break;
1753                         case T_MergePath:
1754                                 _outMergePath(str, obj);
1755                                 break;
1756                         case T_HashPath:
1757                                 _outHashPath(str, obj);
1758                                 break;
1759                         case T_PathKeyItem:
1760                                 _outPathKeyItem(str, obj);
1761                                 break;
1762                         case T_RestrictInfo:
1763                                 _outRestrictInfo(str, obj);
1764                                 break;
1765                         case T_JoinInfo:
1766                                 _outJoinInfo(str, obj);
1767                                 break;
1768                         case T_InClauseInfo:
1769                                 _outInClauseInfo(str, obj);
1770                                 break;
1771
1772                         case T_CreateStmt:
1773                                 _outCreateStmt(str, obj);
1774                                 break;
1775                         case T_IndexStmt:
1776                                 _outIndexStmt(str, obj);
1777                                 break;
1778                         case T_NotifyStmt:
1779                                 _outNotifyStmt(str, obj);
1780                                 break;
1781                         case T_DeclareCursorStmt:
1782                                 _outDeclareCursorStmt(str, obj);
1783                                 break;
1784                         case T_SelectStmt:
1785                                 _outSelectStmt(str, obj);
1786                                 break;
1787                         case T_ColumnDef:
1788                                 _outColumnDef(str, obj);
1789                                 break;
1790                         case T_TypeName:
1791                                 _outTypeName(str, obj);
1792                                 break;
1793                         case T_TypeCast:
1794                                 _outTypeCast(str, obj);
1795                                 break;
1796                         case T_IndexElem:
1797                                 _outIndexElem(str, obj);
1798                                 break;
1799                         case T_Query:
1800                                 _outQuery(str, obj);
1801                                 break;
1802                         case T_SortClause:
1803                                 _outSortClause(str, obj);
1804                                 break;
1805                         case T_GroupClause:
1806                                 _outGroupClause(str, obj);
1807                                 break;
1808                         case T_SetOperationStmt:
1809                                 _outSetOperationStmt(str, obj);
1810                                 break;
1811                         case T_RangeTblEntry:
1812                                 _outRangeTblEntry(str, obj);
1813                                 break;
1814                         case T_A_Expr:
1815                                 _outAExpr(str, obj);
1816                                 break;
1817                         case T_ColumnRef:
1818                                 _outColumnRef(str, obj);
1819                                 break;
1820                         case T_ParamRef:
1821                                 _outParamRef(str, obj);
1822                                 break;
1823                         case T_A_Const:
1824                                 _outAConst(str, obj);
1825                                 break;
1826                         case T_ExprFieldSelect:
1827                                 _outExprFieldSelect(str, obj);
1828                                 break;
1829                         case T_Constraint:
1830                                 _outConstraint(str, obj);
1831                                 break;
1832                         case T_FkConstraint:
1833                                 _outFkConstraint(str, obj);
1834                                 break;
1835                         case T_FuncCall:
1836                                 _outFuncCall(str, obj);
1837                                 break;
1838
1839                         default:
1840
1841                                 /*
1842                                  * This should be an ERROR, but it's too useful to be able
1843                                  * to dump structures that _outNode only understands part
1844                                  * of.
1845                                  */
1846                                 elog(WARNING, "could not dump unrecognized node type: %d",
1847                                          (int) nodeTag(obj));
1848                                 break;
1849                 }
1850                 appendStringInfoChar(str, '}');
1851         }
1852 }
1853
1854 /*
1855  * nodeToString -
1856  *         returns the ascii representation of the Node as a palloc'd string
1857  */
1858 char *
1859 nodeToString(void *obj)
1860 {
1861         StringInfoData str;
1862
1863         /* see stringinfo.h for an explanation of this maneuver */
1864         initStringInfo(&str);
1865         _outNode(&str, obj);
1866         return str.data;
1867 }