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) 1996-2002, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  *
  10  * IDENTIFICATION
  11  *        $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.211 2003/06/29 00:33:43 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         {
 196                 appendStringInfo(str, " %d", x);
 197         }
 198         bms_free(tmpset);
 199         appendStringInfoChar(str, ')');
 200 }
 201
 202 /*
 203  * Print the value of a Datum given its type.
 204  */
 205 static void
 206 _outDatum(StringInfo str, Datum value, int typlen, bool typbyval)
 207 {
 208         Size            length,
 209                                 i;
 210         char       *s;
 211
 212         length = datumGetSize(value, typbyval, typlen);
 213
 214         if (typbyval)
 215         {
 216                 s = (char *) (&value);
 217                 appendStringInfo(str, "%u [ ", (unsigned int) length);
 218                 for (i = 0; i < (Size) sizeof(Datum); i++)
 219                         appendStringInfo(str, "%d ", (int) (s[i]));
 220                 appendStringInfo(str, "]");
 221         }
 222         else
 223         {
 224                 s = (char *) DatumGetPointer(value);
 225                 if (!PointerIsValid(s))
 226                         appendStringInfo(str, "0 [ ]");
 227                 else
 228                 {
 229                         appendStringInfo(str, "%u [ ", (unsigned int) length);
 230                         for (i = 0; i < length; i++)
 231                                 appendStringInfo(str, "%d ", (int) (s[i]));
 232                         appendStringInfo(str, "]");
 233                 }
 234         }
 235 }
 236
 237
 238 /*
 239  *      Stuff from plannodes.h
 240  */
 241
 242 /*
 243  * print the basic stuff of all nodes that inherit from Plan
 244  */
 245 static void
 246 _outPlanInfo(StringInfo str, Plan *node)
 247 {
 248         WRITE_FLOAT_FIELD(startup_cost, "%.2f");
 249         WRITE_FLOAT_FIELD(total_cost, "%.2f");
 250         WRITE_FLOAT_FIELD(plan_rows, "%.0f");
 251         WRITE_INT_FIELD(plan_width);
 252         WRITE_NODE_FIELD(targetlist);
 253         WRITE_NODE_FIELD(qual);
 254         WRITE_NODE_FIELD(lefttree);
 255         WRITE_NODE_FIELD(righttree);
 256         WRITE_NODE_FIELD(initPlan);
 257         WRITE_BITMAPSET_FIELD(extParam);
 258         WRITE_BITMAPSET_FIELD(allParam);
 259         WRITE_INT_FIELD(nParamExec);
 260 }
 261
 262 /*
 263  * print the basic stuff of all nodes that inherit from Scan
 264  */
 265 static void
 266 _outScanInfo(StringInfo str, Scan *node)
 267 {
 268         _outPlanInfo(str, (Plan *) node);
 269
 270         WRITE_UINT_FIELD(scanrelid);
 271 }
 272
 273 /*
 274  * print the basic stuff of all nodes that inherit from Join
 275  */
 276 static void
 277 _outJoinPlanInfo(StringInfo str, Join *node)
 278 {
 279         _outPlanInfo(str, (Plan *) node);
 280
 281         WRITE_ENUM_FIELD(jointype, JoinType);
 282         WRITE_NODE_FIELD(joinqual);
 283 }
 284
 285
 286 static void
 287 _outPlan(StringInfo str, Plan *node)
 288 {
 289         WRITE_NODE_TYPE("PLAN");
 290
 291         _outPlanInfo(str, (Plan *) node);
 292 }
 293
 294 static void
 295 _outResult(StringInfo str, Result *node)
 296 {
 297         WRITE_NODE_TYPE("RESULT");
 298
 299         _outPlanInfo(str, (Plan *) node);
 300
 301         WRITE_NODE_FIELD(resconstantqual);
 302 }
 303
 304 static void
 305 _outAppend(StringInfo str, Append *node)
 306 {
 307         WRITE_NODE_TYPE("APPEND");
 308
 309         _outPlanInfo(str, (Plan *) node);
 310
 311         WRITE_NODE_FIELD(appendplans);
 312         WRITE_BOOL_FIELD(isTarget);
 313 }
 314
 315 static void
 316 _outScan(StringInfo str, Scan *node)
 317 {
 318         WRITE_NODE_TYPE("SCAN");
 319
 320         _outScanInfo(str, (Scan *) node);
 321 }
 322
 323 static void
 324 _outSeqScan(StringInfo str, SeqScan *node)
 325 {
 326         WRITE_NODE_TYPE("SEQSCAN");
 327
 328         _outScanInfo(str, (Scan *) node);
 329 }
 330
 331 static void
 332 _outIndexScan(StringInfo str, IndexScan *node)
 333 {
 334         WRITE_NODE_TYPE("INDEXSCAN");
 335
 336         _outScanInfo(str, (Scan *) node);
 337
 338         WRITE_OIDLIST_FIELD(indxid);
 339         WRITE_NODE_FIELD(indxqual);
 340         WRITE_NODE_FIELD(indxqualorig);
 341         WRITE_ENUM_FIELD(indxorderdir, ScanDirection);
 342 }
 343
 344 static void
 345 _outTidScan(StringInfo str, TidScan *node)
 346 {
 347         WRITE_NODE_TYPE("TIDSCAN");
 348
 349         _outScanInfo(str, (Scan *) node);
 350
 351         WRITE_NODE_FIELD(tideval);
 352 }
 353
 354 static void
 355 _outSubqueryScan(StringInfo str, SubqueryScan *node)
 356 {
 357         WRITE_NODE_TYPE("SUBQUERYSCAN");
 358
 359         _outScanInfo(str, (Scan *) node);
 360
 361         WRITE_NODE_FIELD(subplan);
 362 }
 363
 364 static void
 365 _outFunctionScan(StringInfo str, FunctionScan *node)
 366 {
 367         WRITE_NODE_TYPE("FUNCTIONSCAN");
 368
 369         _outScanInfo(str, (Scan *) node);
 370 }
 371
 372 static void
 373 _outJoin(StringInfo str, Join *node)
 374 {
 375         WRITE_NODE_TYPE("JOIN");
 376
 377         _outJoinPlanInfo(str, (Join *) node);
 378 }
 379
 380 static void
 381 _outNestLoop(StringInfo str, NestLoop *node)
 382 {
 383         WRITE_NODE_TYPE("NESTLOOP");
 384
 385         _outJoinPlanInfo(str, (Join *) node);
 386 }
 387
 388 static void
 389 _outMergeJoin(StringInfo str, MergeJoin *node)
 390 {
 391         WRITE_NODE_TYPE("MERGEJOIN");
 392
 393         _outJoinPlanInfo(str, (Join *) node);
 394
 395         WRITE_NODE_FIELD(mergeclauses);
 396 }
 397
 398 static void
 399 _outHashJoin(StringInfo str, HashJoin *node)
 400 {
 401         WRITE_NODE_TYPE("HASHJOIN");
 402
 403         _outJoinPlanInfo(str, (Join *) node);
 404
 405         WRITE_NODE_FIELD(hashclauses);
 406 }
 407
 408 static void
 409 _outAgg(StringInfo str, Agg *node)
 410 {
 411         WRITE_NODE_TYPE("AGG");
 412
 413         _outPlanInfo(str, (Plan *) node);
 414
 415         WRITE_ENUM_FIELD(aggstrategy, AggStrategy);
 416         WRITE_INT_FIELD(numCols);
 417         WRITE_LONG_FIELD(numGroups);
 418 }
 419
 420 static void
 421 _outGroup(StringInfo str, Group *node)
 422 {
 423         int                     i;
 424
 425         WRITE_NODE_TYPE("GROUP");
 426
 427         _outPlanInfo(str, (Plan *) node);
 428
 429         WRITE_INT_FIELD(numCols);
 430
 431         appendStringInfo(str, " :grpColIdx");
 432         for (i = 0; i < node->numCols; i++)
 433                 appendStringInfo(str, " %d", node->grpColIdx[i]);
 434 }
 435
 436 static void
 437 _outMaterial(StringInfo str, Material *node)
 438 {
 439         WRITE_NODE_TYPE("MATERIAL");
 440
 441         _outPlanInfo(str, (Plan *) node);
 442 }
 443
 444 static void
 445 _outSort(StringInfo str, Sort *node)
 446 {
 447         int                     i;
 448
 449         WRITE_NODE_TYPE("SORT");
 450
 451         _outPlanInfo(str, (Plan *) node);
 452
 453         WRITE_INT_FIELD(numCols);
 454
 455         appendStringInfo(str, " :sortColIdx");
 456         for (i = 0; i < node->numCols; i++)
 457                 appendStringInfo(str, " %d", node->sortColIdx[i]);
 458
 459         appendStringInfo(str, " :sortOperators");
 460         for (i = 0; i < node->numCols; i++)
 461                 appendStringInfo(str, " %u", node->sortOperators[i]);
 462 }
 463
 464 static void
 465 _outUnique(StringInfo str, Unique *node)
 466 {
 467         int                     i;
 468
 469         WRITE_NODE_TYPE("UNIQUE");
 470
 471         _outPlanInfo(str, (Plan *) node);
 472
 473         WRITE_INT_FIELD(numCols);
 474
 475         appendStringInfo(str, " :uniqColIdx");
 476         for (i = 0; i < node->numCols; i++)
 477                 appendStringInfo(str, " %d", node->uniqColIdx[i]);
 478 }
 479
 480 static void
 481 _outSetOp(StringInfo str, SetOp *node)
 482 {
 483         int                     i;
 484
 485         WRITE_NODE_TYPE("SETOP");
 486
 487         _outPlanInfo(str, (Plan *) node);
 488
 489         WRITE_ENUM_FIELD(cmd, SetOpCmd);
 490         WRITE_INT_FIELD(numCols);
 491
 492         appendStringInfo(str, " :dupColIdx");
 493         for (i = 0; i < node->numCols; i++)
 494                 appendStringInfo(str, " %d", node->dupColIdx[i]);
 495
 496         WRITE_INT_FIELD(flagColIdx);
 497 }
 498
 499 static void
 500 _outLimit(StringInfo str, Limit *node)
 501 {
 502         WRITE_NODE_TYPE("LIMIT");
 503
 504         _outPlanInfo(str, (Plan *) node);
 505
 506         WRITE_NODE_FIELD(limitOffset);
 507         WRITE_NODE_FIELD(limitCount);
 508 }
 509
 510 static void
 511 _outHash(StringInfo str, Hash *node)
 512 {
 513         WRITE_NODE_TYPE("HASH");
 514
 515         _outPlanInfo(str, (Plan *) node);
 516
 517         WRITE_NODE_FIELD(hashkeys);
 518 }
 519
 520 /*****************************************************************************
 521  *
 522  *      Stuff from primnodes.h.
 523  *
 524  *****************************************************************************/
 525
 526 static void
 527 _outResdom(StringInfo str, Resdom *node)
 528 {
 529         WRITE_NODE_TYPE("RESDOM");
 530
 531         WRITE_INT_FIELD(resno);
 532         WRITE_OID_FIELD(restype);
 533         WRITE_INT_FIELD(restypmod);
 534         WRITE_STRING_FIELD(resname);
 535         WRITE_UINT_FIELD(ressortgroupref);
 536         WRITE_OID_FIELD(resorigtbl);
 537         WRITE_INT_FIELD(resorigcol);
 538         WRITE_BOOL_FIELD(resjunk);
 539 }
 540
 541 static void
 542 _outAlias(StringInfo str, Alias *node)
 543 {
 544         WRITE_NODE_TYPE("ALIAS");
 545
 546         WRITE_STRING_FIELD(aliasname);
 547         WRITE_NODE_FIELD(colnames);
 548 }
 549
 550 static void
 551 _outRangeVar(StringInfo str, RangeVar *node)
 552 {
 553         WRITE_NODE_TYPE("RANGEVAR");
 554
 555         /*
 556          * we deliberately ignore catalogname here, since it is presently not
 557          * semantically meaningful
 558          */
 559         WRITE_STRING_FIELD(schemaname);
 560         WRITE_STRING_FIELD(relname);
 561         WRITE_ENUM_FIELD(inhOpt, InhOption);
 562         WRITE_BOOL_FIELD(istemp);
 563         WRITE_NODE_FIELD(alias);
 564 }
 565
 566 static void
 567 _outVar(StringInfo str, Var *node)
 568 {
 569         WRITE_NODE_TYPE("VAR");
 570
 571         WRITE_UINT_FIELD(varno);
 572         WRITE_INT_FIELD(varattno);
 573         WRITE_OID_FIELD(vartype);
 574         WRITE_INT_FIELD(vartypmod);
 575         WRITE_UINT_FIELD(varlevelsup);
 576         WRITE_UINT_FIELD(varnoold);
 577         WRITE_INT_FIELD(varoattno);
 578 }
 579
 580 static void
 581 _outConst(StringInfo str, Const *node)
 582 {
 583         WRITE_NODE_TYPE("CONST");
 584
 585         WRITE_OID_FIELD(consttype);
 586         WRITE_INT_FIELD(constlen);
 587         WRITE_BOOL_FIELD(constbyval);
 588         WRITE_BOOL_FIELD(constisnull);
 589
 590         appendStringInfo(str, " :constvalue ");
 591         if (node->constisnull)
 592                 appendStringInfo(str, "<>");
 593         else
 594                 _outDatum(str, node->constvalue, node->constlen, node->constbyval);
 595 }
 596
 597 static void
 598 _outParam(StringInfo str, Param *node)
 599 {
 600         WRITE_NODE_TYPE("PARAM");
 601
 602         WRITE_INT_FIELD(paramkind);
 603         WRITE_INT_FIELD(paramid);
 604         WRITE_STRING_FIELD(paramname);
 605         WRITE_OID_FIELD(paramtype);
 606 }
 607
 608 static void
 609 _outAggref(StringInfo str, Aggref *node)
 610 {
 611         WRITE_NODE_TYPE("AGGREF");
 612
 613         WRITE_OID_FIELD(aggfnoid);
 614         WRITE_OID_FIELD(aggtype);
 615         WRITE_NODE_FIELD(target);
 616         WRITE_UINT_FIELD(agglevelsup);
 617         WRITE_BOOL_FIELD(aggstar);
 618         WRITE_BOOL_FIELD(aggdistinct);
 619 }
 620
 621 static void
 622 _outArrayRef(StringInfo str, ArrayRef *node)
 623 {
 624         WRITE_NODE_TYPE("ARRAYREF");
 625
 626         WRITE_OID_FIELD(refrestype);
 627         WRITE_OID_FIELD(refarraytype);
 628         WRITE_OID_FIELD(refelemtype);
 629         WRITE_NODE_FIELD(refupperindexpr);
 630         WRITE_NODE_FIELD(reflowerindexpr);
 631         WRITE_NODE_FIELD(refexpr);
 632         WRITE_NODE_FIELD(refassgnexpr);
 633 }
 634
 635 static void
 636 _outFuncExpr(StringInfo str, FuncExpr *node)
 637 {
 638         WRITE_NODE_TYPE("FUNCEXPR");
 639
 640         WRITE_OID_FIELD(funcid);
 641         WRITE_OID_FIELD(funcresulttype);
 642         WRITE_BOOL_FIELD(funcretset);
 643         WRITE_ENUM_FIELD(funcformat, CoercionForm);
 644         WRITE_NODE_FIELD(args);
 645 }
 646
 647 static void
 648 _outOpExpr(StringInfo str, OpExpr *node)
 649 {
 650         WRITE_NODE_TYPE("OPEXPR");
 651
 652         WRITE_OID_FIELD(opno);
 653         WRITE_OID_FIELD(opfuncid);
 654         WRITE_OID_FIELD(opresulttype);
 655         WRITE_BOOL_FIELD(opretset);
 656         WRITE_NODE_FIELD(args);
 657 }
 658
 659 static void
 660 _outDistinctExpr(StringInfo str, DistinctExpr *node)
 661 {
 662         WRITE_NODE_TYPE("DISTINCTEXPR");
 663
 664         WRITE_OID_FIELD(opno);
 665         WRITE_OID_FIELD(opfuncid);
 666         WRITE_OID_FIELD(opresulttype);
 667         WRITE_BOOL_FIELD(opretset);
 668         WRITE_NODE_FIELD(args);
 669 }
 670
 671 static void
 672 _outScalarArrayOpExpr(StringInfo str, ScalarArrayOpExpr *node)
 673 {
 674         WRITE_NODE_TYPE("SCALARARRAYOPEXPR");
 675
 676         WRITE_OID_FIELD(opno);
 677         WRITE_OID_FIELD(opfuncid);
 678         WRITE_BOOL_FIELD(useOr);
 679         WRITE_NODE_FIELD(args);
 680 }
 681
 682 static void
 683 _outBoolExpr(StringInfo str, BoolExpr *node)
 684 {
 685         char       *opstr = NULL;
 686
 687         WRITE_NODE_TYPE("BOOLEXPR");
 688
 689         /* do-it-yourself enum representation */
 690         switch (node->boolop)
 691         {
 692                 case AND_EXPR:
 693                         opstr = "and";
 694                         break;
 695                 case OR_EXPR:
 696                         opstr = "or";
 697                         break;
 698                 case NOT_EXPR:
 699                         opstr = "not";
 700                         break;
 701         }
 702         appendStringInfo(str, " :boolop ");
 703         _outToken(str, opstr);
 704
 705         WRITE_NODE_FIELD(args);
 706 }
 707
 708 static void
 709 _outSubLink(StringInfo str, SubLink *node)
 710 {
 711         WRITE_NODE_TYPE("SUBLINK");
 712
 713         WRITE_ENUM_FIELD(subLinkType, SubLinkType);
 714         WRITE_BOOL_FIELD(useOr);
 715         WRITE_NODE_FIELD(lefthand);
 716         WRITE_NODE_FIELD(operName);
 717         WRITE_OIDLIST_FIELD(operOids);
 718         WRITE_NODE_FIELD(subselect);
 719 }
 720
 721 static void
 722 _outSubPlan(StringInfo str, SubPlan *node)
 723 {
 724         WRITE_NODE_TYPE("SUBPLAN");
 725
 726         WRITE_ENUM_FIELD(subLinkType, SubLinkType);
 727         WRITE_BOOL_FIELD(useOr);
 728         WRITE_NODE_FIELD(exprs);
 729         WRITE_INTLIST_FIELD(paramIds);
 730         WRITE_NODE_FIELD(plan);
 731         WRITE_INT_FIELD(plan_id);
 732         WRITE_NODE_FIELD(rtable);
 733         WRITE_BOOL_FIELD(useHashTable);
 734         WRITE_BOOL_FIELD(unknownEqFalse);
 735         WRITE_INTLIST_FIELD(setParam);
 736         WRITE_INTLIST_FIELD(parParam);
 737         WRITE_NODE_FIELD(args);
 738 }
 739
 740 static void
 741 _outFieldSelect(StringInfo str, FieldSelect *node)
 742 {
 743         WRITE_NODE_TYPE("FIELDSELECT");
 744
 745         WRITE_NODE_FIELD(arg);
 746         WRITE_INT_FIELD(fieldnum);
 747         WRITE_OID_FIELD(resulttype);
 748         WRITE_INT_FIELD(resulttypmod);
 749 }
 750
 751 static void
 752 _outRelabelType(StringInfo str, RelabelType *node)
 753 {
 754         WRITE_NODE_TYPE("RELABELTYPE");
 755
 756         WRITE_NODE_FIELD(arg);
 757         WRITE_OID_FIELD(resulttype);
 758         WRITE_INT_FIELD(resulttypmod);
 759         WRITE_ENUM_FIELD(relabelformat, CoercionForm);
 760 }
 761
 762 static void
 763 _outCaseExpr(StringInfo str, CaseExpr *node)
 764 {
 765         WRITE_NODE_TYPE("CASE");
 766
 767         WRITE_OID_FIELD(casetype);
 768         WRITE_NODE_FIELD(arg);
 769         WRITE_NODE_FIELD(args);
 770         WRITE_NODE_FIELD(defresult);
 771 }
 772
 773 static void
 774 _outCaseWhen(StringInfo str, CaseWhen *node)
 775 {
 776         WRITE_NODE_TYPE("WHEN");
 777
 778         WRITE_NODE_FIELD(expr);
 779         WRITE_NODE_FIELD(result);
 780 }
 781
 782 static void
 783 _outArrayExpr(StringInfo str, ArrayExpr *node)
 784 {
 785         WRITE_NODE_TYPE("ARRAY");
 786
 787         WRITE_OID_FIELD(array_typeid);
 788         WRITE_OID_FIELD(element_typeid);
 789         WRITE_NODE_FIELD(elements);
 790         WRITE_INT_FIELD(ndims);
 791 }
 792
 793 static void
 794 _outCoalesceExpr(StringInfo str, CoalesceExpr *node)
 795 {
 796         WRITE_NODE_TYPE("COALESCE");
 797
 798         WRITE_OID_FIELD(coalescetype);
 799         WRITE_NODE_FIELD(args);
 800 }
 801
 802 static void
 803 _outNullIfExpr(StringInfo str, NullIfExpr *node)
 804 {
 805         WRITE_NODE_TYPE("NULLIFEXPR");
 806
 807         WRITE_OID_FIELD(opno);
 808         WRITE_OID_FIELD(opfuncid);
 809         WRITE_OID_FIELD(opresulttype);
 810         WRITE_BOOL_FIELD(opretset);
 811         WRITE_NODE_FIELD(args);
 812 }
 813
 814 static void
 815 _outNullTest(StringInfo str, NullTest *node)
 816 {
 817         WRITE_NODE_TYPE("NULLTEST");
 818
 819         WRITE_NODE_FIELD(arg);
 820         WRITE_ENUM_FIELD(nulltesttype, NullTestType);
 821 }
 822
 823 static void
 824 _outBooleanTest(StringInfo str, BooleanTest *node)
 825 {
 826         WRITE_NODE_TYPE("BOOLEANTEST");
 827
 828         WRITE_NODE_FIELD(arg);
 829         WRITE_ENUM_FIELD(booltesttype, BoolTestType);
 830 }
 831
 832 static void
 833 _outCoerceToDomain(StringInfo str, CoerceToDomain *node)
 834 {
 835         WRITE_NODE_TYPE("COERCETODOMAIN");
 836
 837         WRITE_NODE_FIELD(arg);
 838         WRITE_OID_FIELD(resulttype);
 839         WRITE_INT_FIELD(resulttypmod);
 840         WRITE_ENUM_FIELD(coercionformat, CoercionForm);
 841 }
 842
 843 static void
 844 _outCoerceToDomainValue(StringInfo str, CoerceToDomainValue *node)
 845 {
 846         WRITE_NODE_TYPE("COERCETODOMAINVALUE");
 847
 848         WRITE_OID_FIELD(typeId);
 849         WRITE_INT_FIELD(typeMod);
 850 }
 851
 852 static void
 853 _outTargetEntry(StringInfo str, TargetEntry *node)
 854 {
 855         WRITE_NODE_TYPE("TARGETENTRY");
 856
 857         WRITE_NODE_FIELD(resdom);
 858         WRITE_NODE_FIELD(expr);
 859 }
 860
 861 static void
 862 _outRangeTblRef(StringInfo str, RangeTblRef *node)
 863 {
 864         WRITE_NODE_TYPE("RANGETBLREF");
 865
 866         WRITE_INT_FIELD(rtindex);
 867 }
 868
 869 static void
 870 _outJoinExpr(StringInfo str, JoinExpr *node)
 871 {
 872         WRITE_NODE_TYPE("JOINEXPR");
 873
 874         WRITE_ENUM_FIELD(jointype, JoinType);
 875         WRITE_BOOL_FIELD(isNatural);
 876         WRITE_NODE_FIELD(larg);
 877         WRITE_NODE_FIELD(rarg);
 878         WRITE_NODE_FIELD(using);
 879         WRITE_NODE_FIELD(quals);
 880         WRITE_NODE_FIELD(alias);
 881         WRITE_INT_FIELD(rtindex);
 882 }
 883
 884 static void
 885 _outFromExpr(StringInfo str, FromExpr *node)
 886 {
 887         WRITE_NODE_TYPE("FROMEXPR");
 888
 889         WRITE_NODE_FIELD(fromlist);
 890         WRITE_NODE_FIELD(quals);
 891 }
 892
 893 /*****************************************************************************
 894  *
 895  *      Stuff from relation.h.
 896  *
 897  *****************************************************************************/
 898
 899 /*
 900  * print the basic stuff of all nodes that inherit from Path
 901  *
 902  * Note we do NOT print the parent, else we'd be in infinite recursion
 903  */
 904 static void
 905 _outPathInfo(StringInfo str, Path *node)
 906 {
 907         WRITE_ENUM_FIELD(pathtype, NodeTag);
 908         WRITE_FLOAT_FIELD(startup_cost, "%.2f");
 909         WRITE_FLOAT_FIELD(total_cost, "%.2f");
 910         WRITE_NODE_FIELD(pathkeys);
 911 }
 912
 913 /*
 914  * print the basic stuff of all nodes that inherit from JoinPath
 915  */
 916 static void
 917 _outJoinPathInfo(StringInfo str, JoinPath *node)
 918 {
 919         _outPathInfo(str, (Path *) node);
 920
 921         WRITE_ENUM_FIELD(jointype, JoinType);
 922         WRITE_NODE_FIELD(outerjoinpath);
 923         WRITE_NODE_FIELD(innerjoinpath);
 924         WRITE_NODE_FIELD(joinrestrictinfo);
 925 }
 926
 927 static void
 928 _outPath(StringInfo str, Path *node)
 929 {
 930         WRITE_NODE_TYPE("PATH");
 931
 932         _outPathInfo(str, (Path *) node);
 933 }
 934
 935 /*
 936  *      IndexPath is a subclass of Path.
 937  */
 938 static void
 939 _outIndexPath(StringInfo str, IndexPath *node)
 940 {
 941         WRITE_NODE_TYPE("INDEXPATH");
 942
 943         _outPathInfo(str, (Path *) node);
 944
 945         WRITE_NODE_FIELD(indexinfo);
 946         WRITE_NODE_FIELD(indexqual);
 947         WRITE_NODE_FIELD(indexjoinclauses);
 948         WRITE_ENUM_FIELD(indexscandir, ScanDirection);
 949         WRITE_FLOAT_FIELD(rows, "%.2f");
 950 }
 951
 952 static void
 953 _outTidPath(StringInfo str, TidPath *node)
 954 {
 955         WRITE_NODE_TYPE("TIDPATH");
 956
 957         _outPathInfo(str, (Path *) node);
 958
 959         WRITE_NODE_FIELD(tideval);
 960 }
 961
 962 static void
 963 _outAppendPath(StringInfo str, AppendPath *node)
 964 {
 965         WRITE_NODE_TYPE("APPENDPATH");
 966
 967         _outPathInfo(str, (Path *) node);
 968
 969         WRITE_NODE_FIELD(subpaths);
 970 }
 971
 972 static void
 973 _outResultPath(StringInfo str, ResultPath *node)
 974 {
 975         WRITE_NODE_TYPE("RESULTPATH");
 976
 977         _outPathInfo(str, (Path *) node);
 978
 979         WRITE_NODE_FIELD(subpath);
 980         WRITE_NODE_FIELD(constantqual);
 981 }
 982
 983 static void
 984 _outMaterialPath(StringInfo str, MaterialPath *node)
 985 {
 986         WRITE_NODE_TYPE("MATERIALPATH");
 987
 988         _outPathInfo(str, (Path *) node);
 989
 990         WRITE_NODE_FIELD(subpath);
 991 }
 992
 993 static void
 994 _outUniquePath(StringInfo str, UniquePath *node)
 995 {
 996         WRITE_NODE_TYPE("UNIQUEPATH");
 997
 998         _outPathInfo(str, (Path *) node);
 999
1000         WRITE_NODE_FIELD(subpath);
1001         WRITE_BOOL_FIELD(use_hash);
1002         WRITE_FLOAT_FIELD(rows, "%.0f");
1003 }
1004
1005 static void
1006 _outNestPath(StringInfo str, NestPath *node)
1007 {
1008         WRITE_NODE_TYPE("NESTPATH");
1009
1010         _outJoinPathInfo(str, (JoinPath *) node);
1011 }
1012
1013 static void
1014 _outMergePath(StringInfo str, MergePath *node)
1015 {
1016         WRITE_NODE_TYPE("MERGEPATH");
1017
1018         _outJoinPathInfo(str, (JoinPath *) node);
1019
1020         WRITE_NODE_FIELD(path_mergeclauses);
1021         WRITE_NODE_FIELD(outersortkeys);
1022         WRITE_NODE_FIELD(innersortkeys);
1023 }
1024
1025 static void
1026 _outHashPath(StringInfo str, HashPath *node)
1027 {
1028         WRITE_NODE_TYPE("HASHPATH");
1029
1030         _outJoinPathInfo(str, (JoinPath *) node);
1031
1032         WRITE_NODE_FIELD(path_hashclauses);
1033 }
1034
1035 static void
1036 _outPathKeyItem(StringInfo str, PathKeyItem *node)
1037 {
1038         WRITE_NODE_TYPE("PATHKEYITEM");
1039
1040         WRITE_NODE_FIELD(key);
1041         WRITE_OID_FIELD(sortop);
1042 }
1043
1044 static void
1045 _outRestrictInfo(StringInfo str, RestrictInfo *node)
1046 {
1047         WRITE_NODE_TYPE("RESTRICTINFO");
1048
1049         /* NB: this isn't a complete set of fields */
1050         WRITE_NODE_FIELD(clause);
1051         WRITE_BOOL_FIELD(ispusheddown);
1052         WRITE_NODE_FIELD(subclauseindices);
1053         WRITE_BITMAPSET_FIELD(left_relids);
1054         WRITE_BITMAPSET_FIELD(right_relids);
1055         WRITE_OID_FIELD(mergejoinoperator);
1056         WRITE_OID_FIELD(left_sortop);
1057         WRITE_OID_FIELD(right_sortop);
1058         WRITE_NODE_FIELD(left_pathkey);
1059         WRITE_NODE_FIELD(right_pathkey);
1060         WRITE_OID_FIELD(hashjoinoperator);
1061 }
1062
1063 static void
1064 _outJoinInfo(StringInfo str, JoinInfo *node)
1065 {
1066         WRITE_NODE_TYPE("JOININFO");
1067
1068         WRITE_BITMAPSET_FIELD(unjoined_relids);
1069         WRITE_NODE_FIELD(jinfo_restrictinfo);
1070 }
1071
1072 static void
1073 _outInClauseInfo(StringInfo str, InClauseInfo *node)
1074 {
1075         WRITE_NODE_TYPE("INCLAUSEINFO");
1076
1077         WRITE_BITMAPSET_FIELD(lefthand);
1078         WRITE_BITMAPSET_FIELD(righthand);
1079         WRITE_NODE_FIELD(sub_targetlist);
1080 }
1081
1082 /*****************************************************************************
1083  *
1084  *      Stuff from parsenodes.h.
1085  *
1086  *****************************************************************************/
1087
1088 static void
1089 _outCreateStmt(StringInfo str, CreateStmt *node)
1090 {
1091         WRITE_NODE_TYPE("CREATE");
1092
1093         WRITE_NODE_FIELD(relation);
1094         WRITE_NODE_FIELD(tableElts);
1095         WRITE_NODE_FIELD(inhRelations);
1096         WRITE_NODE_FIELD(constraints);
1097         WRITE_BOOL_FIELD(hasoids);
1098         WRITE_ENUM_FIELD(oncommit, OnCommitAction);
1099 }
1100
1101 static void
1102 _outIndexStmt(StringInfo str, IndexStmt *node)
1103 {
1104         WRITE_NODE_TYPE("INDEX");
1105
1106         WRITE_STRING_FIELD(idxname);
1107         WRITE_NODE_FIELD(relation);
1108         WRITE_STRING_FIELD(accessMethod);
1109         WRITE_NODE_FIELD(indexParams);
1110         WRITE_NODE_FIELD(whereClause);
1111         WRITE_NODE_FIELD(rangetable);
1112         WRITE_BOOL_FIELD(unique);
1113         WRITE_BOOL_FIELD(primary);
1114         WRITE_BOOL_FIELD(isconstraint);
1115 }
1116
1117 static void
1118 _outNotifyStmt(StringInfo str, NotifyStmt *node)
1119 {
1120         WRITE_NODE_TYPE("NOTIFY");
1121
1122         WRITE_NODE_FIELD(relation);
1123 }
1124
1125 static void
1126 _outDeclareCursorStmt(StringInfo str, DeclareCursorStmt *node)
1127 {
1128         WRITE_NODE_TYPE("DECLARECURSOR");
1129
1130         WRITE_STRING_FIELD(portalname);
1131         WRITE_INT_FIELD(options);
1132         WRITE_NODE_FIELD(query);
1133 }
1134
1135 static void
1136 _outSelectStmt(StringInfo str, SelectStmt *node)
1137 {
1138         WRITE_NODE_TYPE("SELECT");
1139
1140         /* XXX this is pretty durn incomplete */
1141         WRITE_NODE_FIELD(whereClause);
1142 }
1143
1144 static void
1145 _outFuncCall(StringInfo str, FuncCall *node)
1146 {
1147         WRITE_NODE_TYPE("FUNCCALL");
1148
1149         WRITE_NODE_FIELD(funcname);
1150         WRITE_NODE_FIELD(args);
1151         WRITE_BOOL_FIELD(agg_star);
1152         WRITE_BOOL_FIELD(agg_distinct);
1153 }
1154
1155 static void
1156 _outColumnDef(StringInfo str, ColumnDef *node)
1157 {
1158         WRITE_NODE_TYPE("COLUMNDEF");
1159
1160         WRITE_STRING_FIELD(colname);
1161         WRITE_NODE_FIELD(typename);
1162         WRITE_INT_FIELD(inhcount);
1163         WRITE_BOOL_FIELD(is_local);
1164         WRITE_BOOL_FIELD(is_not_null);
1165         WRITE_NODE_FIELD(raw_default);
1166         WRITE_STRING_FIELD(cooked_default);
1167         WRITE_NODE_FIELD(constraints);
1168         WRITE_NODE_FIELD(support);
1169 }
1170
1171 static void
1172 _outTypeName(StringInfo str, TypeName *node)
1173 {
1174         WRITE_NODE_TYPE("TYPENAME");
1175
1176         WRITE_NODE_FIELD(names);
1177         WRITE_OID_FIELD(typeid);
1178         WRITE_BOOL_FIELD(timezone);
1179         WRITE_BOOL_FIELD(setof);
1180         WRITE_BOOL_FIELD(pct_type);
1181         WRITE_INT_FIELD(typmod);
1182         WRITE_NODE_FIELD(arrayBounds);
1183 }
1184
1185 static void
1186 _outTypeCast(StringInfo str, TypeCast *node)
1187 {
1188         WRITE_NODE_TYPE("TYPECAST");
1189
1190         WRITE_NODE_FIELD(arg);
1191         WRITE_NODE_FIELD(typename);
1192 }
1193
1194 static void
1195 _outIndexElem(StringInfo str, IndexElem *node)
1196 {
1197         WRITE_NODE_TYPE("INDEXELEM");
1198
1199         WRITE_STRING_FIELD(name);
1200         WRITE_NODE_FIELD(expr);
1201         WRITE_NODE_FIELD(opclass);
1202 }
1203
1204 static void
1205 _outQuery(StringInfo str, Query *node)
1206 {
1207         WRITE_NODE_TYPE("QUERY");
1208
1209         WRITE_ENUM_FIELD(commandType, CmdType);
1210         WRITE_ENUM_FIELD(querySource, QuerySource);
1211         WRITE_BOOL_FIELD(canSetTag);
1212
1213         /*
1214          * Hack to work around missing outfuncs routines for a lot of the
1215          * utility-statement node types.  (The only one we actually *need* for
1216          * rules support is NotifyStmt.)  Someday we ought to support 'em all,
1217          * but for the meantime do this to avoid getting lots of warnings when
1218          * running with debug_print_parse on.
1219          */
1220         if (node->utilityStmt)
1221         {
1222                 switch (nodeTag(node->utilityStmt))
1223                 {
1224                         case T_CreateStmt:
1225                         case T_IndexStmt:
1226                         case T_NotifyStmt:
1227                         case T_DeclareCursorStmt:
1228                                 WRITE_NODE_FIELD(utilityStmt);
1229                                 break;
1230                         default:
1231                                 appendStringInfo(str, " :utilityStmt ?");
1232                                 break;
1233                 }
1234         }
1235         else
1236                 appendStringInfo(str, " :utilityStmt <>");
1237
1238         WRITE_INT_FIELD(resultRelation);
1239         WRITE_NODE_FIELD(into);
1240         WRITE_BOOL_FIELD(hasAggs);
1241         WRITE_BOOL_FIELD(hasSubLinks);
1242         WRITE_NODE_FIELD(rtable);
1243         WRITE_NODE_FIELD(jointree);
1244         WRITE_INTLIST_FIELD(rowMarks);
1245         WRITE_NODE_FIELD(targetList);
1246         WRITE_NODE_FIELD(groupClause);
1247         WRITE_NODE_FIELD(havingQual);
1248         WRITE_NODE_FIELD(distinctClause);
1249         WRITE_NODE_FIELD(sortClause);
1250         WRITE_NODE_FIELD(limitOffset);
1251         WRITE_NODE_FIELD(limitCount);
1252         WRITE_NODE_FIELD(setOperations);
1253         WRITE_INTLIST_FIELD(resultRelations);
1254
1255         /* planner-internal fields are not written out */
1256 }
1257
1258 static void
1259 _outSortClause(StringInfo str, SortClause *node)
1260 {
1261         WRITE_NODE_TYPE("SORTCLAUSE");
1262
1263         WRITE_UINT_FIELD(tleSortGroupRef);
1264         WRITE_OID_FIELD(sortop);
1265 }
1266
1267 static void
1268 _outGroupClause(StringInfo str, GroupClause *node)
1269 {
1270         WRITE_NODE_TYPE("GROUPCLAUSE");
1271
1272         WRITE_UINT_FIELD(tleSortGroupRef);
1273         WRITE_OID_FIELD(sortop);
1274 }
1275
1276 static void
1277 _outSetOperationStmt(StringInfo str, SetOperationStmt *node)
1278 {
1279         WRITE_NODE_TYPE("SETOPERATIONSTMT");
1280
1281         WRITE_ENUM_FIELD(op, SetOperation);
1282         WRITE_BOOL_FIELD(all);
1283         WRITE_NODE_FIELD(larg);
1284         WRITE_NODE_FIELD(rarg);
1285         WRITE_OIDLIST_FIELD(colTypes);
1286 }
1287
1288 static void
1289 _outRangeTblEntry(StringInfo str, RangeTblEntry *node)
1290 {
1291         WRITE_NODE_TYPE("RTE");
1292
1293         /* put alias + eref first to make dump more legible */
1294         WRITE_NODE_FIELD(alias);
1295         WRITE_NODE_FIELD(eref);
1296         WRITE_ENUM_FIELD(rtekind, RTEKind);
1297
1298         switch (node->rtekind)
1299         {
1300                 case RTE_RELATION:
1301                 case RTE_SPECIAL:
1302                         WRITE_OID_FIELD(relid);
1303                         break;
1304                 case RTE_SUBQUERY:
1305                         WRITE_NODE_FIELD(subquery);
1306                         break;
1307                 case RTE_FUNCTION:
1308                         WRITE_NODE_FIELD(funcexpr);
1309                         WRITE_NODE_FIELD(coldeflist);
1310                         break;
1311                 case RTE_JOIN:
1312                         WRITE_ENUM_FIELD(jointype, JoinType);
1313                         WRITE_NODE_FIELD(joinaliasvars);
1314                         break;
1315                 default:
1316                         elog(ERROR, "bogus rte kind %d", (int) node->rtekind);
1317                         break;
1318         }
1319
1320         WRITE_BOOL_FIELD(inh);
1321         WRITE_BOOL_FIELD(inFromCl);
1322         WRITE_BOOL_FIELD(checkForRead);
1323         WRITE_BOOL_FIELD(checkForWrite);
1324         WRITE_OID_FIELD(checkAsUser);
1325 }
1326
1327 static void
1328 _outAExpr(StringInfo str, A_Expr *node)
1329 {
1330         WRITE_NODE_TYPE("AEXPR");
1331
1332         switch (node->kind)
1333         {
1334                 case AEXPR_OP:
1335                         appendStringInfo(str, " ");
1336                         WRITE_NODE_FIELD(name);
1337                         break;
1338                 case AEXPR_AND:
1339                         appendStringInfo(str, " AND");
1340                         break;
1341                 case AEXPR_OR:
1342                         appendStringInfo(str, " OR");
1343                         break;
1344                 case AEXPR_NOT:
1345                         appendStringInfo(str, " NOT");
1346                         break;
1347                 case AEXPR_OP_ANY:
1348                         appendStringInfo(str, " ");
1349                         WRITE_NODE_FIELD(name);
1350                         appendStringInfo(str, " ANY ");
1351                         break;
1352                 case AEXPR_OP_ALL:
1353                         appendStringInfo(str, " ");
1354                         WRITE_NODE_FIELD(name);
1355                         appendStringInfo(str, " ALL ");
1356                         break;
1357                 case AEXPR_DISTINCT:
1358                         appendStringInfo(str, " DISTINCT ");
1359                         WRITE_NODE_FIELD(name);
1360                         break;
1361                 case AEXPR_NULLIF:
1362                         appendStringInfo(str, " NULLIF ");
1363                         WRITE_NODE_FIELD(name);
1364                         break;
1365                 case AEXPR_OF:
1366                         appendStringInfo(str, " OF ");
1367                         WRITE_NODE_FIELD(name);
1368                         break;
1369                 default:
1370                         appendStringInfo(str, " ??");
1371                         break;
1372         }
1373
1374         WRITE_NODE_FIELD(lexpr);
1375         WRITE_NODE_FIELD(rexpr);
1376 }
1377
1378 static void
1379 _outValue(StringInfo str, Value *value)
1380 {
1381         switch (value->type)
1382         {
1383                 case T_Integer:
1384                         appendStringInfo(str, "%ld", value->val.ival);
1385                         break;
1386                 case T_Float:
1387
1388                         /*
1389                          * We assume the value is a valid numeric literal and so does
1390                          * not need quoting.
1391                          */
1392                         appendStringInfo(str, "%s", value->val.str);
1393                         break;
1394                 case T_String:
1395                         appendStringInfoChar(str, '"');
1396                         _outToken(str, value->val.str);
1397                         appendStringInfoChar(str, '"');
1398                         break;
1399                 case T_BitString:
1400                         /* internal representation already has leading 'b' */
1401                         appendStringInfo(str, "%s", value->val.str);
1402                         break;
1403                 default:
1404                         elog(WARNING, "_outValue: don't know how to print type %d",
1405                                  value->type);
1406                         break;
1407         }
1408 }
1409
1410 static void
1411 _outColumnRef(StringInfo str, ColumnRef *node)
1412 {
1413         WRITE_NODE_TYPE("COLUMNREF");
1414
1415         WRITE_NODE_FIELD(fields);
1416         WRITE_NODE_FIELD(indirection);
1417 }
1418
1419 static void
1420 _outParamRef(StringInfo str, ParamRef *node)
1421 {
1422         WRITE_NODE_TYPE("PARAMREF");
1423
1424         WRITE_INT_FIELD(number);
1425         WRITE_NODE_FIELD(fields);
1426         WRITE_NODE_FIELD(indirection);
1427 }
1428
1429 static void
1430 _outAConst(StringInfo str, A_Const *node)
1431 {
1432         WRITE_NODE_TYPE("CONST ");
1433
1434         _outValue(str, &(node->val));
1435         WRITE_NODE_FIELD(typename);
1436 }
1437
1438 static void
1439 _outExprFieldSelect(StringInfo str, ExprFieldSelect *node)
1440 {
1441         WRITE_NODE_TYPE("EXPRFIELDSELECT");
1442
1443         WRITE_NODE_FIELD(arg);
1444         WRITE_NODE_FIELD(fields);
1445         WRITE_NODE_FIELD(indirection);
1446 }
1447
1448 static void
1449 _outConstraint(StringInfo str, Constraint *node)
1450 {
1451         WRITE_NODE_TYPE("CONSTRAINT");
1452
1453         WRITE_STRING_FIELD(name);
1454
1455         appendStringInfo(str, " :contype ");
1456         switch (node->contype)
1457         {
1458                 case CONSTR_PRIMARY:
1459                         appendStringInfo(str, "PRIMARY_KEY");
1460                         WRITE_NODE_FIELD(keys);
1461                         break;
1462
1463                 case CONSTR_CHECK:
1464                         appendStringInfo(str, "CHECK");
1465                         WRITE_NODE_FIELD(raw_expr);
1466                         WRITE_STRING_FIELD(cooked_expr);
1467                         break;
1468
1469                 case CONSTR_DEFAULT:
1470                         appendStringInfo(str, "DEFAULT");
1471                         WRITE_NODE_FIELD(raw_expr);
1472                         WRITE_STRING_FIELD(cooked_expr);
1473                         break;
1474
1475                 case CONSTR_NOTNULL:
1476                         appendStringInfo(str, "NOT_NULL");
1477                         break;
1478
1479                 case CONSTR_UNIQUE:
1480                         appendStringInfo(str, "UNIQUE");
1481                         WRITE_NODE_FIELD(keys);
1482                         break;
1483
1484                 default:
1485                         appendStringInfo(str, "<unrecognized_constraint>");
1486                         break;
1487         }
1488 }
1489
1490 static void
1491 _outFkConstraint(StringInfo str, FkConstraint *node)
1492 {
1493         WRITE_NODE_TYPE("FKCONSTRAINT");
1494
1495         WRITE_STRING_FIELD(constr_name);
1496         WRITE_NODE_FIELD(pktable);
1497         WRITE_NODE_FIELD(fk_attrs);
1498         WRITE_NODE_FIELD(pk_attrs);
1499         WRITE_CHAR_FIELD(fk_matchtype);
1500         WRITE_CHAR_FIELD(fk_upd_action);
1501         WRITE_CHAR_FIELD(fk_del_action);
1502         WRITE_BOOL_FIELD(deferrable);
1503         WRITE_BOOL_FIELD(initdeferred);
1504         WRITE_BOOL_FIELD(skip_validation);
1505 }
1506
1507
1508 /*
1509  * _outNode -
1510  *        converts a Node into ascii string and append it to 'str'
1511  */
1512 static void
1513 _outNode(StringInfo str, void *obj)
1514 {
1515         if (obj == NULL)
1516         {
1517                 appendStringInfo(str, "<>");
1518                 return;
1519         }
1520
1521         if (IsA(obj, List))
1522         {
1523                 List       *l;
1524
1525                 appendStringInfoChar(str, '(');
1526                 foreach(l, (List *) obj)
1527                 {
1528                         _outNode(str, lfirst(l));
1529                         if (lnext(l))
1530                                 appendStringInfoChar(str, ' ');
1531                 }
1532                 appendStringInfoChar(str, ')');
1533         }
1534         else if (IsA(obj, Integer) ||
1535                          IsA(obj, Float) ||
1536                          IsA(obj, String) ||
1537                          IsA(obj, BitString))
1538         {
1539                 /* nodeRead does not want to see { } around these! */
1540                 _outValue(str, obj);
1541         }
1542         else
1543         {
1544                 appendStringInfoChar(str, '{');
1545                 switch (nodeTag(obj))
1546                 {
1547                         case T_Plan:
1548                                 _outPlan(str, obj);
1549                                 break;
1550                         case T_Result:
1551                                 _outResult(str, obj);
1552                                 break;
1553                         case T_Append:
1554                                 _outAppend(str, obj);
1555                                 break;
1556                         case T_Scan:
1557                                 _outScan(str, obj);
1558                                 break;
1559                         case T_SeqScan:
1560                                 _outSeqScan(str, obj);
1561                                 break;
1562                         case T_IndexScan:
1563                                 _outIndexScan(str, obj);
1564                                 break;
1565                         case T_TidScan:
1566                                 _outTidScan(str, obj);
1567                                 break;
1568                         case T_SubqueryScan:
1569                                 _outSubqueryScan(str, obj);
1570                                 break;
1571                         case T_FunctionScan:
1572                                 _outFunctionScan(str, obj);
1573                                 break;
1574                         case T_Join:
1575                                 _outJoin(str, obj);
1576                                 break;
1577                         case T_NestLoop:
1578                                 _outNestLoop(str, obj);
1579                                 break;
1580                         case T_MergeJoin:
1581                                 _outMergeJoin(str, obj);
1582                                 break;
1583                         case T_HashJoin:
1584                                 _outHashJoin(str, obj);
1585                                 break;
1586                         case T_Agg:
1587                                 _outAgg(str, obj);
1588                                 break;
1589                         case T_Group:
1590                                 _outGroup(str, obj);
1591                                 break;
1592                         case T_Material:
1593                                 _outMaterial(str, obj);
1594                                 break;
1595                         case T_Sort:
1596                                 _outSort(str, obj);
1597                                 break;
1598                         case T_Unique:
1599                                 _outUnique(str, obj);
1600                                 break;
1601                         case T_SetOp:
1602                                 _outSetOp(str, obj);
1603                                 break;
1604                         case T_Limit:
1605                                 _outLimit(str, obj);
1606                                 break;
1607                         case T_Hash:
1608                                 _outHash(str, obj);
1609                                 break;
1610                         case T_Resdom:
1611                                 _outResdom(str, obj);
1612                                 break;
1613                         case T_Alias:
1614                                 _outAlias(str, obj);
1615                                 break;
1616                         case T_RangeVar:
1617                                 _outRangeVar(str, obj);
1618                                 break;
1619                         case T_Var:
1620                                 _outVar(str, obj);
1621                                 break;
1622                         case T_Const:
1623                                 _outConst(str, obj);
1624                                 break;
1625                         case T_Param:
1626                                 _outParam(str, obj);
1627                                 break;
1628                         case T_Aggref:
1629                                 _outAggref(str, obj);
1630                                 break;
1631                         case T_ArrayRef:
1632                                 _outArrayRef(str, obj);
1633                                 break;
1634                         case T_FuncExpr:
1635                                 _outFuncExpr(str, obj);
1636                                 break;
1637                         case T_OpExpr:
1638                                 _outOpExpr(str, obj);
1639                                 break;
1640                         case T_DistinctExpr:
1641                                 _outDistinctExpr(str, obj);
1642                                 break;
1643                         case T_ScalarArrayOpExpr:
1644                                 _outScalarArrayOpExpr(str, obj);
1645                                 break;
1646                         case T_BoolExpr:
1647                                 _outBoolExpr(str, obj);
1648                                 break;
1649                         case T_SubLink:
1650                                 _outSubLink(str, obj);
1651                                 break;
1652                         case T_SubPlan:
1653                                 _outSubPlan(str, obj);
1654                                 break;
1655                         case T_FieldSelect:
1656                                 _outFieldSelect(str, obj);
1657                                 break;
1658                         case T_RelabelType:
1659                                 _outRelabelType(str, obj);
1660                                 break;
1661                         case T_CaseExpr:
1662                                 _outCaseExpr(str, obj);
1663                                 break;
1664                         case T_CaseWhen:
1665                                 _outCaseWhen(str, obj);
1666                                 break;
1667                         case T_ArrayExpr:
1668                                 _outArrayExpr(str, obj);
1669                                 break;
1670                         case T_CoalesceExpr:
1671                                 _outCoalesceExpr(str, obj);
1672                                 break;
1673                         case T_NullIfExpr:
1674                                 _outNullIfExpr(str, obj);
1675                                 break;
1676                         case T_NullTest:
1677                                 _outNullTest(str, obj);
1678                                 break;
1679                         case T_BooleanTest:
1680                                 _outBooleanTest(str, obj);
1681                                 break;
1682                         case T_CoerceToDomain:
1683                                 _outCoerceToDomain(str, obj);
1684                                 break;
1685                         case T_CoerceToDomainValue:
1686                                 _outCoerceToDomainValue(str, obj);
1687                                 break;
1688                         case T_TargetEntry:
1689                                 _outTargetEntry(str, obj);
1690                                 break;
1691                         case T_RangeTblRef:
1692                                 _outRangeTblRef(str, obj);
1693                                 break;
1694                         case T_JoinExpr:
1695                                 _outJoinExpr(str, obj);
1696                                 break;
1697                         case T_FromExpr:
1698                                 _outFromExpr(str, obj);
1699                                 break;
1700
1701                         case T_Path:
1702                                 _outPath(str, obj);
1703                                 break;
1704                         case T_IndexPath:
1705                                 _outIndexPath(str, obj);
1706                                 break;
1707                         case T_TidPath:
1708                                 _outTidPath(str, obj);
1709                                 break;
1710                         case T_AppendPath:
1711                                 _outAppendPath(str, obj);
1712                                 break;
1713                         case T_ResultPath:
1714                                 _outResultPath(str, obj);
1715                                 break;
1716                         case T_MaterialPath:
1717                                 _outMaterialPath(str, obj);
1718                                 break;
1719                         case T_UniquePath:
1720                                 _outUniquePath(str, obj);
1721                                 break;
1722                         case T_NestPath:
1723                                 _outNestPath(str, obj);
1724                                 break;
1725                         case T_MergePath:
1726                                 _outMergePath(str, obj);
1727                                 break;
1728                         case T_HashPath:
1729                                 _outHashPath(str, obj);
1730                                 break;
1731                         case T_PathKeyItem:
1732                                 _outPathKeyItem(str, obj);
1733                                 break;
1734                         case T_RestrictInfo:
1735                                 _outRestrictInfo(str, obj);
1736                                 break;
1737                         case T_JoinInfo:
1738                                 _outJoinInfo(str, obj);
1739                                 break;
1740                         case T_InClauseInfo:
1741                                 _outInClauseInfo(str, obj);
1742                                 break;
1743
1744                         case T_CreateStmt:
1745                                 _outCreateStmt(str, obj);
1746                                 break;
1747                         case T_IndexStmt:
1748                                 _outIndexStmt(str, obj);
1749                                 break;
1750                         case T_NotifyStmt:
1751                                 _outNotifyStmt(str, obj);
1752                                 break;
1753                         case T_DeclareCursorStmt:
1754                                 _outDeclareCursorStmt(str, obj);
1755                                 break;
1756                         case T_SelectStmt:
1757                                 _outSelectStmt(str, obj);
1758                                 break;
1759                         case T_ColumnDef:
1760                                 _outColumnDef(str, obj);
1761                                 break;
1762                         case T_TypeName:
1763                                 _outTypeName(str, obj);
1764                                 break;
1765                         case T_TypeCast:
1766                                 _outTypeCast(str, obj);
1767                                 break;
1768                         case T_IndexElem:
1769                                 _outIndexElem(str, obj);
1770                                 break;
1771                         case T_Query:
1772                                 _outQuery(str, obj);
1773                                 break;
1774                         case T_SortClause:
1775                                 _outSortClause(str, obj);
1776                                 break;
1777                         case T_GroupClause:
1778                                 _outGroupClause(str, obj);
1779                                 break;
1780                         case T_SetOperationStmt:
1781                                 _outSetOperationStmt(str, obj);
1782                                 break;
1783                         case T_RangeTblEntry:
1784                                 _outRangeTblEntry(str, obj);
1785                                 break;
1786                         case T_A_Expr:
1787                                 _outAExpr(str, obj);
1788                                 break;
1789                         case T_ColumnRef:
1790                                 _outColumnRef(str, obj);
1791                                 break;
1792                         case T_ParamRef:
1793                                 _outParamRef(str, obj);
1794                                 break;
1795                         case T_A_Const:
1796                                 _outAConst(str, obj);
1797                                 break;
1798                         case T_ExprFieldSelect:
1799                                 _outExprFieldSelect(str, obj);
1800                                 break;
1801                         case T_Constraint:
1802                                 _outConstraint(str, obj);
1803                                 break;
1804                         case T_FkConstraint:
1805                                 _outFkConstraint(str, obj);
1806                                 break;
1807                         case T_FuncCall:
1808                                 _outFuncCall(str, obj);
1809                                 break;
1810
1811                         default:
1812                                 elog(WARNING, "_outNode: don't know how to print type %d",
1813                                          nodeTag(obj));
1814                                 break;
1815                 }
1816                 appendStringInfoChar(str, '}');
1817         }
1818 }
1819
1820 /*
1821  * nodeToString -
1822  *         returns the ascii representation of the Node as a palloc'd string
1823  */
1824 char *
1825 nodeToString(void *obj)
1826 {
1827         StringInfoData str;
1828
1829         /* see stringinfo.h for an explanation of this maneuver */
1830         initStringInfo(&str);
1831         _outNode(&str, obj);
1832         return str.data;
1833 }