1 /*-------------------------------------------------------------------------
4 * Reader functions for Postgres tree nodes.
6 * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994, Regents of the University of California
11 * src/backend/nodes/readfuncs.c
14 * Path and Plan nodes do not have any readfuncs support, because we
15 * never have occasion to read them in. (There was once code here that
16 * claimed to read them, but it was broken as well as unused.) We
17 * never read executor state trees, either.
19 * Parse location fields are written out by outfuncs.c, but only for
20 * possible debugging use. When reading a location field, we discard
21 * the stored value and set the location field to -1 (ie, "unknown").
22 * This is because nodes coming from a stored rule should not be thought
23 * to have a known location in the current query's text.
25 *-------------------------------------------------------------------------
31 #include "nodes/parsenodes.h"
32 #include "nodes/readfuncs.h"
36 * Macros to simplify reading of different kinds of fields. Use these
37 * wherever possible to reduce the chance for silly typos. Note that these
38 * hard-wire conventions about the names of the local variables in a Read
42 /* Macros for declaring appropriate local variables */
44 /* A few guys need only local_node */
45 #define READ_LOCALS_NO_FIELDS(nodeTypeName) \
46 nodeTypeName *local_node = makeNode(nodeTypeName)
48 /* And a few guys need only the pg_strtok support fields */
49 #define READ_TEMP_LOCALS() \
53 /* ... but most need both */
54 #define READ_LOCALS(nodeTypeName) \
55 READ_LOCALS_NO_FIELDS(nodeTypeName); \
58 /* Read an integer field (anything written as ":fldname %d") */
59 #define READ_INT_FIELD(fldname) \
60 token = pg_strtok(&length); /* skip :fldname */ \
61 token = pg_strtok(&length); /* get field value */ \
62 local_node->fldname = atoi(token)
64 /* Read an unsigned integer field (anything written as ":fldname %u") */
65 #define READ_UINT_FIELD(fldname) \
66 token = pg_strtok(&length); /* skip :fldname */ \
67 token = pg_strtok(&length); /* get field value */ \
68 local_node->fldname = atoui(token)
70 /* Read an OID field (don't hard-wire assumption that OID is same as uint) */
71 #define READ_OID_FIELD(fldname) \
72 token = pg_strtok(&length); /* skip :fldname */ \
73 token = pg_strtok(&length); /* get field value */ \
74 local_node->fldname = atooid(token)
76 /* Read a char field (ie, one ascii character) */
77 #define READ_CHAR_FIELD(fldname) \
78 token = pg_strtok(&length); /* skip :fldname */ \
79 token = pg_strtok(&length); /* get field value */ \
80 local_node->fldname = token[0]
82 /* Read an enumerated-type field that was written as an integer code */
83 #define READ_ENUM_FIELD(fldname, enumtype) \
84 token = pg_strtok(&length); /* skip :fldname */ \
85 token = pg_strtok(&length); /* get field value */ \
86 local_node->fldname = (enumtype) atoi(token)
88 /* Read a float field */
89 #define READ_FLOAT_FIELD(fldname) \
90 token = pg_strtok(&length); /* skip :fldname */ \
91 token = pg_strtok(&length); /* get field value */ \
92 local_node->fldname = atof(token)
94 /* Read a boolean field */
95 #define READ_BOOL_FIELD(fldname) \
96 token = pg_strtok(&length); /* skip :fldname */ \
97 token = pg_strtok(&length); /* get field value */ \
98 local_node->fldname = strtobool(token)
100 /* Read a character-string field */
101 #define READ_STRING_FIELD(fldname) \
102 token = pg_strtok(&length); /* skip :fldname */ \
103 token = pg_strtok(&length); /* get field value */ \
104 local_node->fldname = nullable_string(token, length)
106 /* Read a parse location field (and throw away the value, per notes above) */
107 #define READ_LOCATION_FIELD(fldname) \
108 token = pg_strtok(&length); /* skip :fldname */ \
109 token = pg_strtok(&length); /* get field value */ \
110 (void) token; /* in case not used elsewhere */ \
111 local_node->fldname = -1 /* set field to "unknown" */
113 /* Read a Node field */
114 #define READ_NODE_FIELD(fldname) \
115 token = pg_strtok(&length); /* skip :fldname */ \
116 (void) token; /* in case not used elsewhere */ \
117 local_node->fldname = nodeRead(NULL, 0)
119 /* Read a bitmapset field */
120 #define READ_BITMAPSET_FIELD(fldname) \
121 token = pg_strtok(&length); /* skip :fldname */ \
122 (void) token; /* in case not used elsewhere */ \
123 local_node->fldname = _readBitmapset()
126 #define READ_DONE() \
131 * NOTE: use atoi() to read values written with %d, or atoui() to read
132 * values written with %u in outfuncs.c. An exception is OID values,
133 * for which use atooid(). (As of 7.1, outfuncs.c writes OIDs as %u,
134 * but this will probably change in the future.)
136 #define atoui(x) ((unsigned int) strtoul((x), NULL, 10))
138 #define atooid(x) ((Oid) strtoul((x), NULL, 10))
140 #define strtobool(x) ((*(x) == 't') ? true : false)
142 #define nullable_string(token,length) \
143 ((length) == 0 ? NULL : debackslash(token, length))
146 static Datum readDatum(bool typbyval);
154 Bitmapset *result = NULL;
158 token = pg_strtok(&length);
160 elog(ERROR, "incomplete Bitmapset structure");
161 if (length != 1 || token[0] != '(')
162 elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
164 token = pg_strtok(&length);
166 elog(ERROR, "incomplete Bitmapset structure");
167 if (length != 1 || token[0] != 'b')
168 elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
175 token = pg_strtok(&length);
177 elog(ERROR, "unterminated Bitmapset structure");
178 if (length == 1 && token[0] == ')')
180 val = (int) strtol(token, &endptr, 10);
181 if (endptr != token + length)
182 elog(ERROR, "unrecognized integer: \"%.*s\"", length, token);
183 result = bms_add_member(result, val);
198 READ_ENUM_FIELD(commandType, CmdType);
199 READ_ENUM_FIELD(querySource, QuerySource);
200 local_node->queryId = 0; /* not saved in output format */
201 READ_BOOL_FIELD(canSetTag);
202 READ_NODE_FIELD(utilityStmt);
203 READ_INT_FIELD(resultRelation);
204 READ_BOOL_FIELD(hasAggs);
205 READ_BOOL_FIELD(hasWindowFuncs);
206 READ_BOOL_FIELD(hasSubLinks);
207 READ_BOOL_FIELD(hasDistinctOn);
208 READ_BOOL_FIELD(hasRecursive);
209 READ_BOOL_FIELD(hasModifyingCTE);
210 READ_BOOL_FIELD(hasForUpdate);
211 READ_BOOL_FIELD(hasRowSecurity);
212 READ_NODE_FIELD(cteList);
213 READ_NODE_FIELD(rtable);
214 READ_NODE_FIELD(jointree);
215 READ_NODE_FIELD(targetList);
216 READ_NODE_FIELD(withCheckOptions);
217 READ_NODE_FIELD(onConflict);
218 READ_NODE_FIELD(returningList);
219 READ_NODE_FIELD(groupClause);
220 READ_NODE_FIELD(havingQual);
221 READ_NODE_FIELD(windowClause);
222 READ_NODE_FIELD(distinctClause);
223 READ_NODE_FIELD(sortClause);
224 READ_NODE_FIELD(limitOffset);
225 READ_NODE_FIELD(limitCount);
226 READ_NODE_FIELD(rowMarks);
227 READ_NODE_FIELD(setOperations);
228 READ_NODE_FIELD(constraintDeps);
237 _readNotifyStmt(void)
239 READ_LOCALS(NotifyStmt);
241 READ_STRING_FIELD(conditionname);
242 READ_STRING_FIELD(payload);
248 * _readDeclareCursorStmt
250 static DeclareCursorStmt *
251 _readDeclareCursorStmt(void)
253 READ_LOCALS(DeclareCursorStmt);
255 READ_STRING_FIELD(portalname);
256 READ_INT_FIELD(options);
257 READ_NODE_FIELD(query);
263 * _readWithCheckOption
265 static WithCheckOption *
266 _readWithCheckOption(void)
268 READ_LOCALS(WithCheckOption);
270 READ_ENUM_FIELD(kind, WCOKind);
271 READ_STRING_FIELD(relname);
272 READ_NODE_FIELD(qual);
273 READ_BOOL_FIELD(cascaded);
279 * _readSortGroupClause
281 static SortGroupClause *
282 _readSortGroupClause(void)
284 READ_LOCALS(SortGroupClause);
286 READ_UINT_FIELD(tleSortGroupRef);
287 READ_OID_FIELD(eqop);
288 READ_OID_FIELD(sortop);
289 READ_BOOL_FIELD(nulls_first);
290 READ_BOOL_FIELD(hashable);
298 static WindowClause *
299 _readWindowClause(void)
301 READ_LOCALS(WindowClause);
303 READ_STRING_FIELD(name);
304 READ_STRING_FIELD(refname);
305 READ_NODE_FIELD(partitionClause);
306 READ_NODE_FIELD(orderClause);
307 READ_INT_FIELD(frameOptions);
308 READ_NODE_FIELD(startOffset);
309 READ_NODE_FIELD(endOffset);
310 READ_UINT_FIELD(winref);
311 READ_BOOL_FIELD(copiedOrder);
319 static RowMarkClause *
320 _readRowMarkClause(void)
322 READ_LOCALS(RowMarkClause);
324 READ_UINT_FIELD(rti);
325 READ_ENUM_FIELD(strength, LockClauseStrength);
326 READ_ENUM_FIELD(waitPolicy, LockWaitPolicy);
327 READ_BOOL_FIELD(pushedDown);
333 * _readCommonTableExpr
335 static CommonTableExpr *
336 _readCommonTableExpr(void)
338 READ_LOCALS(CommonTableExpr);
340 READ_STRING_FIELD(ctename);
341 READ_NODE_FIELD(aliascolnames);
342 READ_NODE_FIELD(ctequery);
343 READ_LOCATION_FIELD(location);
344 READ_BOOL_FIELD(cterecursive);
345 READ_INT_FIELD(cterefcount);
346 READ_NODE_FIELD(ctecolnames);
347 READ_NODE_FIELD(ctecoltypes);
348 READ_NODE_FIELD(ctecoltypmods);
349 READ_NODE_FIELD(ctecolcollations);
355 * _readRangeTableSample
357 static RangeTableSample *
358 _readRangeTableSample(void)
360 READ_LOCALS(RangeTableSample);
362 READ_NODE_FIELD(relation);
363 READ_STRING_FIELD(method);
364 READ_NODE_FIELD(repeatable);
365 READ_NODE_FIELD(args);
371 * _readTableSampleClause
373 static TableSampleClause *
374 _readTableSampleClause(void)
376 READ_LOCALS(TableSampleClause);
378 READ_OID_FIELD(tsmid);
379 READ_BOOL_FIELD(tsmseqscan);
380 READ_BOOL_FIELD(tsmpagemode);
381 READ_OID_FIELD(tsminit);
382 READ_OID_FIELD(tsmnextblock);
383 READ_OID_FIELD(tsmnexttuple);
384 READ_OID_FIELD(tsmexaminetuple);
385 READ_OID_FIELD(tsmend);
386 READ_OID_FIELD(tsmreset);
387 READ_OID_FIELD(tsmcost);
388 READ_NODE_FIELD(repeatable);
389 READ_NODE_FIELD(args);
395 * _readSetOperationStmt
397 static SetOperationStmt *
398 _readSetOperationStmt(void)
400 READ_LOCALS(SetOperationStmt);
402 READ_ENUM_FIELD(op, SetOperation);
403 READ_BOOL_FIELD(all);
404 READ_NODE_FIELD(larg);
405 READ_NODE_FIELD(rarg);
406 READ_NODE_FIELD(colTypes);
407 READ_NODE_FIELD(colTypmods);
408 READ_NODE_FIELD(colCollations);
409 READ_NODE_FIELD(groupClauses);
416 * Stuff from primnodes.h.
424 READ_STRING_FIELD(aliasname);
425 READ_NODE_FIELD(colnames);
433 READ_LOCALS(RangeVar);
435 local_node->catalogname = NULL; /* not currently saved in output
438 READ_STRING_FIELD(schemaname);
439 READ_STRING_FIELD(relname);
440 READ_ENUM_FIELD(inhOpt, InhOption);
441 READ_CHAR_FIELD(relpersistence);
442 READ_NODE_FIELD(alias);
443 READ_LOCATION_FIELD(location);
449 _readIntoClause(void)
451 READ_LOCALS(IntoClause);
453 READ_NODE_FIELD(rel);
454 READ_NODE_FIELD(colNames);
455 READ_NODE_FIELD(options);
456 READ_ENUM_FIELD(onCommit, OnCommitAction);
457 READ_STRING_FIELD(tableSpaceName);
458 READ_NODE_FIELD(viewQuery);
459 READ_BOOL_FIELD(skipData);
472 READ_UINT_FIELD(varno);
473 READ_INT_FIELD(varattno);
474 READ_OID_FIELD(vartype);
475 READ_INT_FIELD(vartypmod);
476 READ_OID_FIELD(varcollid);
477 READ_UINT_FIELD(varlevelsup);
478 READ_UINT_FIELD(varnoold);
479 READ_INT_FIELD(varoattno);
480 READ_LOCATION_FIELD(location);
493 READ_OID_FIELD(consttype);
494 READ_INT_FIELD(consttypmod);
495 READ_OID_FIELD(constcollid);
496 READ_INT_FIELD(constlen);
497 READ_BOOL_FIELD(constbyval);
498 READ_BOOL_FIELD(constisnull);
499 READ_LOCATION_FIELD(location);
501 token = pg_strtok(&length); /* skip :constvalue */
502 if (local_node->constisnull)
503 token = pg_strtok(&length); /* skip "<>" */
505 local_node->constvalue = readDatum(local_node->constbyval);
518 READ_ENUM_FIELD(paramkind, ParamKind);
519 READ_INT_FIELD(paramid);
520 READ_OID_FIELD(paramtype);
521 READ_INT_FIELD(paramtypmod);
522 READ_OID_FIELD(paramcollid);
523 READ_LOCATION_FIELD(location);
536 READ_OID_FIELD(aggfnoid);
537 READ_OID_FIELD(aggtype);
538 READ_OID_FIELD(aggcollid);
539 READ_OID_FIELD(inputcollid);
540 READ_NODE_FIELD(aggdirectargs);
541 READ_NODE_FIELD(args);
542 READ_NODE_FIELD(aggorder);
543 READ_NODE_FIELD(aggdistinct);
544 READ_NODE_FIELD(aggfilter);
545 READ_BOOL_FIELD(aggstar);
546 READ_BOOL_FIELD(aggvariadic);
547 READ_CHAR_FIELD(aggkind);
548 READ_UINT_FIELD(agglevelsup);
549 READ_LOCATION_FIELD(location);
558 _readWindowFunc(void)
560 READ_LOCALS(WindowFunc);
562 READ_OID_FIELD(winfnoid);
563 READ_OID_FIELD(wintype);
564 READ_OID_FIELD(wincollid);
565 READ_OID_FIELD(inputcollid);
566 READ_NODE_FIELD(args);
567 READ_NODE_FIELD(aggfilter);
568 READ_UINT_FIELD(winref);
569 READ_BOOL_FIELD(winstar);
570 READ_BOOL_FIELD(winagg);
571 READ_LOCATION_FIELD(location);
582 READ_LOCALS(ArrayRef);
584 READ_OID_FIELD(refarraytype);
585 READ_OID_FIELD(refelemtype);
586 READ_INT_FIELD(reftypmod);
587 READ_OID_FIELD(refcollid);
588 READ_NODE_FIELD(refupperindexpr);
589 READ_NODE_FIELD(reflowerindexpr);
590 READ_NODE_FIELD(refexpr);
591 READ_NODE_FIELD(refassgnexpr);
602 READ_LOCALS(FuncExpr);
604 READ_OID_FIELD(funcid);
605 READ_OID_FIELD(funcresulttype);
606 READ_BOOL_FIELD(funcretset);
607 READ_BOOL_FIELD(funcvariadic);
608 READ_ENUM_FIELD(funcformat, CoercionForm);
609 READ_OID_FIELD(funccollid);
610 READ_OID_FIELD(inputcollid);
611 READ_NODE_FIELD(args);
612 READ_LOCATION_FIELD(location);
620 static NamedArgExpr *
621 _readNamedArgExpr(void)
623 READ_LOCALS(NamedArgExpr);
625 READ_NODE_FIELD(arg);
626 READ_STRING_FIELD(name);
627 READ_INT_FIELD(argnumber);
628 READ_LOCATION_FIELD(location);
641 READ_OID_FIELD(opno);
642 READ_OID_FIELD(opfuncid);
645 * The opfuncid is stored in the textual format primarily for debugging
646 * and documentation reasons. We want to always read it as zero to force
647 * it to be re-looked-up in the pg_operator entry. This ensures that
648 * stored rules don't have hidden dependencies on operators' functions.
649 * (We don't currently support an ALTER OPERATOR command, but might
652 local_node->opfuncid = InvalidOid;
654 READ_OID_FIELD(opresulttype);
655 READ_BOOL_FIELD(opretset);
656 READ_OID_FIELD(opcollid);
657 READ_OID_FIELD(inputcollid);
658 READ_NODE_FIELD(args);
659 READ_LOCATION_FIELD(location);
667 static DistinctExpr *
668 _readDistinctExpr(void)
670 READ_LOCALS(DistinctExpr);
672 READ_OID_FIELD(opno);
673 READ_OID_FIELD(opfuncid);
676 * The opfuncid is stored in the textual format primarily for debugging
677 * and documentation reasons. We want to always read it as zero to force
678 * it to be re-looked-up in the pg_operator entry. This ensures that
679 * stored rules don't have hidden dependencies on operators' functions.
680 * (We don't currently support an ALTER OPERATOR command, but might
683 local_node->opfuncid = InvalidOid;
685 READ_OID_FIELD(opresulttype);
686 READ_BOOL_FIELD(opretset);
687 READ_OID_FIELD(opcollid);
688 READ_OID_FIELD(inputcollid);
689 READ_NODE_FIELD(args);
690 READ_LOCATION_FIELD(location);
699 _readNullIfExpr(void)
701 READ_LOCALS(NullIfExpr);
703 READ_OID_FIELD(opno);
704 READ_OID_FIELD(opfuncid);
707 * The opfuncid is stored in the textual format primarily for debugging
708 * and documentation reasons. We want to always read it as zero to force
709 * it to be re-looked-up in the pg_operator entry. This ensures that
710 * stored rules don't have hidden dependencies on operators' functions.
711 * (We don't currently support an ALTER OPERATOR command, but might
714 local_node->opfuncid = InvalidOid;
716 READ_OID_FIELD(opresulttype);
717 READ_BOOL_FIELD(opretset);
718 READ_OID_FIELD(opcollid);
719 READ_OID_FIELD(inputcollid);
720 READ_NODE_FIELD(args);
721 READ_LOCATION_FIELD(location);
727 * _readScalarArrayOpExpr
729 static ScalarArrayOpExpr *
730 _readScalarArrayOpExpr(void)
732 READ_LOCALS(ScalarArrayOpExpr);
734 READ_OID_FIELD(opno);
735 READ_OID_FIELD(opfuncid);
738 * The opfuncid is stored in the textual format primarily for debugging
739 * and documentation reasons. We want to always read it as zero to force
740 * it to be re-looked-up in the pg_operator entry. This ensures that
741 * stored rules don't have hidden dependencies on operators' functions.
742 * (We don't currently support an ALTER OPERATOR command, but might
745 local_node->opfuncid = InvalidOid;
747 READ_BOOL_FIELD(useOr);
748 READ_OID_FIELD(inputcollid);
749 READ_NODE_FIELD(args);
750 READ_LOCATION_FIELD(location);
761 READ_LOCALS(BoolExpr);
763 /* do-it-yourself enum representation */
764 token = pg_strtok(&length); /* skip :boolop */
765 token = pg_strtok(&length); /* get field value */
766 if (strncmp(token, "and", 3) == 0)
767 local_node->boolop = AND_EXPR;
768 else if (strncmp(token, "or", 2) == 0)
769 local_node->boolop = OR_EXPR;
770 else if (strncmp(token, "not", 3) == 0)
771 local_node->boolop = NOT_EXPR;
773 elog(ERROR, "unrecognized boolop \"%.*s\"", length, token);
775 READ_NODE_FIELD(args);
776 READ_LOCATION_FIELD(location);
787 READ_LOCALS(SubLink);
789 READ_ENUM_FIELD(subLinkType, SubLinkType);
790 READ_INT_FIELD(subLinkId);
791 READ_NODE_FIELD(testexpr);
792 READ_NODE_FIELD(operName);
793 READ_NODE_FIELD(subselect);
794 READ_LOCATION_FIELD(location);
800 * _readSubPlan is not needed since it doesn't appear in stored rules.
807 _readFieldSelect(void)
809 READ_LOCALS(FieldSelect);
811 READ_NODE_FIELD(arg);
812 READ_INT_FIELD(fieldnum);
813 READ_OID_FIELD(resulttype);
814 READ_INT_FIELD(resulttypmod);
815 READ_OID_FIELD(resultcollid);
824 _readFieldStore(void)
826 READ_LOCALS(FieldStore);
828 READ_NODE_FIELD(arg);
829 READ_NODE_FIELD(newvals);
830 READ_NODE_FIELD(fieldnums);
831 READ_OID_FIELD(resulttype);
840 _readRelabelType(void)
842 READ_LOCALS(RelabelType);
844 READ_NODE_FIELD(arg);
845 READ_OID_FIELD(resulttype);
846 READ_INT_FIELD(resulttypmod);
847 READ_OID_FIELD(resultcollid);
848 READ_ENUM_FIELD(relabelformat, CoercionForm);
849 READ_LOCATION_FIELD(location);
858 _readCoerceViaIO(void)
860 READ_LOCALS(CoerceViaIO);
862 READ_NODE_FIELD(arg);
863 READ_OID_FIELD(resulttype);
864 READ_OID_FIELD(resultcollid);
865 READ_ENUM_FIELD(coerceformat, CoercionForm);
866 READ_LOCATION_FIELD(location);
872 * _readArrayCoerceExpr
874 static ArrayCoerceExpr *
875 _readArrayCoerceExpr(void)
877 READ_LOCALS(ArrayCoerceExpr);
879 READ_NODE_FIELD(arg);
880 READ_OID_FIELD(elemfuncid);
881 READ_OID_FIELD(resulttype);
882 READ_INT_FIELD(resulttypmod);
883 READ_OID_FIELD(resultcollid);
884 READ_BOOL_FIELD(isExplicit);
885 READ_ENUM_FIELD(coerceformat, CoercionForm);
886 READ_LOCATION_FIELD(location);
892 * _readConvertRowtypeExpr
894 static ConvertRowtypeExpr *
895 _readConvertRowtypeExpr(void)
897 READ_LOCALS(ConvertRowtypeExpr);
899 READ_NODE_FIELD(arg);
900 READ_OID_FIELD(resulttype);
901 READ_ENUM_FIELD(convertformat, CoercionForm);
902 READ_LOCATION_FIELD(location);
911 _readCollateExpr(void)
913 READ_LOCALS(CollateExpr);
915 READ_NODE_FIELD(arg);
916 READ_OID_FIELD(collOid);
917 READ_LOCATION_FIELD(location);
928 READ_LOCALS(CaseExpr);
930 READ_OID_FIELD(casetype);
931 READ_OID_FIELD(casecollid);
932 READ_NODE_FIELD(arg);
933 READ_NODE_FIELD(args);
934 READ_NODE_FIELD(defresult);
935 READ_LOCATION_FIELD(location);
946 READ_LOCALS(CaseWhen);
948 READ_NODE_FIELD(expr);
949 READ_NODE_FIELD(result);
950 READ_LOCATION_FIELD(location);
958 static CaseTestExpr *
959 _readCaseTestExpr(void)
961 READ_LOCALS(CaseTestExpr);
963 READ_OID_FIELD(typeId);
964 READ_INT_FIELD(typeMod);
965 READ_OID_FIELD(collation);
976 READ_LOCALS(ArrayExpr);
978 READ_OID_FIELD(array_typeid);
979 READ_OID_FIELD(array_collid);
980 READ_OID_FIELD(element_typeid);
981 READ_NODE_FIELD(elements);
982 READ_BOOL_FIELD(multidims);
983 READ_LOCATION_FIELD(location);
994 READ_LOCALS(RowExpr);
996 READ_NODE_FIELD(args);
997 READ_OID_FIELD(row_typeid);
998 READ_ENUM_FIELD(row_format, CoercionForm);
999 READ_NODE_FIELD(colnames);
1000 READ_LOCATION_FIELD(location);
1006 * _readRowCompareExpr
1008 static RowCompareExpr *
1009 _readRowCompareExpr(void)
1011 READ_LOCALS(RowCompareExpr);
1013 READ_ENUM_FIELD(rctype, RowCompareType);
1014 READ_NODE_FIELD(opnos);
1015 READ_NODE_FIELD(opfamilies);
1016 READ_NODE_FIELD(inputcollids);
1017 READ_NODE_FIELD(largs);
1018 READ_NODE_FIELD(rargs);
1026 static CoalesceExpr *
1027 _readCoalesceExpr(void)
1029 READ_LOCALS(CoalesceExpr);
1031 READ_OID_FIELD(coalescetype);
1032 READ_OID_FIELD(coalescecollid);
1033 READ_NODE_FIELD(args);
1034 READ_LOCATION_FIELD(location);
1043 _readMinMaxExpr(void)
1045 READ_LOCALS(MinMaxExpr);
1047 READ_OID_FIELD(minmaxtype);
1048 READ_OID_FIELD(minmaxcollid);
1049 READ_OID_FIELD(inputcollid);
1050 READ_ENUM_FIELD(op, MinMaxOp);
1051 READ_NODE_FIELD(args);
1052 READ_LOCATION_FIELD(location);
1063 READ_LOCALS(XmlExpr);
1065 READ_ENUM_FIELD(op, XmlExprOp);
1066 READ_STRING_FIELD(name);
1067 READ_NODE_FIELD(named_args);
1068 READ_NODE_FIELD(arg_names);
1069 READ_NODE_FIELD(args);
1070 READ_ENUM_FIELD(xmloption, XmlOptionType);
1071 READ_OID_FIELD(type);
1072 READ_INT_FIELD(typmod);
1073 READ_LOCATION_FIELD(location);
1084 READ_LOCALS(NullTest);
1086 READ_NODE_FIELD(arg);
1087 READ_ENUM_FIELD(nulltesttype, NullTestType);
1088 READ_BOOL_FIELD(argisrow);
1089 READ_LOCATION_FIELD(location);
1097 static BooleanTest *
1098 _readBooleanTest(void)
1100 READ_LOCALS(BooleanTest);
1102 READ_NODE_FIELD(arg);
1103 READ_ENUM_FIELD(booltesttype, BoolTestType);
1104 READ_LOCATION_FIELD(location);
1110 * _readCoerceToDomain
1112 static CoerceToDomain *
1113 _readCoerceToDomain(void)
1115 READ_LOCALS(CoerceToDomain);
1117 READ_NODE_FIELD(arg);
1118 READ_OID_FIELD(resulttype);
1119 READ_INT_FIELD(resulttypmod);
1120 READ_OID_FIELD(resultcollid);
1121 READ_ENUM_FIELD(coercionformat, CoercionForm);
1122 READ_LOCATION_FIELD(location);
1128 * _readCoerceToDomainValue
1130 static CoerceToDomainValue *
1131 _readCoerceToDomainValue(void)
1133 READ_LOCALS(CoerceToDomainValue);
1135 READ_OID_FIELD(typeId);
1136 READ_INT_FIELD(typeMod);
1137 READ_OID_FIELD(collation);
1138 READ_LOCATION_FIELD(location);
1146 static SetToDefault *
1147 _readSetToDefault(void)
1149 READ_LOCALS(SetToDefault);
1151 READ_OID_FIELD(typeId);
1152 READ_INT_FIELD(typeMod);
1153 READ_OID_FIELD(collation);
1154 READ_LOCATION_FIELD(location);
1160 * _readCurrentOfExpr
1162 static CurrentOfExpr *
1163 _readCurrentOfExpr(void)
1165 READ_LOCALS(CurrentOfExpr);
1167 READ_UINT_FIELD(cvarno);
1168 READ_STRING_FIELD(cursor_name);
1169 READ_INT_FIELD(cursor_param);
1175 * _readInferenceElem
1177 static InferenceElem *
1178 _readInferenceElem(void)
1180 READ_LOCALS(InferenceElem);
1182 READ_NODE_FIELD(expr);
1183 READ_OID_FIELD(infercollid);
1184 READ_OID_FIELD(inferopfamily);
1185 READ_OID_FIELD(inferopcinputtype);
1193 static TargetEntry *
1194 _readTargetEntry(void)
1196 READ_LOCALS(TargetEntry);
1198 READ_NODE_FIELD(expr);
1199 READ_INT_FIELD(resno);
1200 READ_STRING_FIELD(resname);
1201 READ_UINT_FIELD(ressortgroupref);
1202 READ_OID_FIELD(resorigtbl);
1203 READ_INT_FIELD(resorigcol);
1204 READ_BOOL_FIELD(resjunk);
1212 static RangeTblRef *
1213 _readRangeTblRef(void)
1215 READ_LOCALS(RangeTblRef);
1217 READ_INT_FIELD(rtindex);
1228 READ_LOCALS(JoinExpr);
1230 READ_ENUM_FIELD(jointype, JoinType);
1231 READ_BOOL_FIELD(isNatural);
1232 READ_NODE_FIELD(larg);
1233 READ_NODE_FIELD(rarg);
1234 READ_NODE_FIELD(usingClause);
1235 READ_NODE_FIELD(quals);
1236 READ_NODE_FIELD(alias);
1237 READ_INT_FIELD(rtindex);
1248 READ_LOCALS(FromExpr);
1250 READ_NODE_FIELD(fromlist);
1251 READ_NODE_FIELD(quals);
1257 * _readOnConflictExpr
1259 static OnConflictExpr *
1260 _readOnConflictExpr(void)
1262 READ_LOCALS(OnConflictExpr);
1264 READ_ENUM_FIELD(action, OnConflictAction);
1265 READ_NODE_FIELD(arbiterElems);
1266 READ_NODE_FIELD(arbiterWhere);
1267 READ_NODE_FIELD(onConflictSet);
1268 READ_NODE_FIELD(onConflictWhere);
1269 READ_OID_FIELD(constraint);
1270 READ_INT_FIELD(exclRelIndex);
1271 READ_NODE_FIELD(exclRelTlist);
1277 * Stuff from parsenodes.h.
1281 * _readRangeTblEntry
1283 static RangeTblEntry *
1284 _readRangeTblEntry(void)
1286 READ_LOCALS(RangeTblEntry);
1288 /* put alias + eref first to make dump more legible */
1289 READ_NODE_FIELD(alias);
1290 READ_NODE_FIELD(eref);
1291 READ_ENUM_FIELD(rtekind, RTEKind);
1293 switch (local_node->rtekind)
1296 READ_OID_FIELD(relid);
1297 READ_CHAR_FIELD(relkind);
1298 READ_NODE_FIELD(tablesample);
1301 READ_NODE_FIELD(subquery);
1302 READ_BOOL_FIELD(security_barrier);
1305 READ_ENUM_FIELD(jointype, JoinType);
1306 READ_NODE_FIELD(joinaliasvars);
1309 READ_NODE_FIELD(functions);
1310 READ_BOOL_FIELD(funcordinality);
1313 READ_NODE_FIELD(values_lists);
1314 READ_NODE_FIELD(values_collations);
1317 READ_STRING_FIELD(ctename);
1318 READ_UINT_FIELD(ctelevelsup);
1319 READ_BOOL_FIELD(self_reference);
1320 READ_NODE_FIELD(ctecoltypes);
1321 READ_NODE_FIELD(ctecoltypmods);
1322 READ_NODE_FIELD(ctecolcollations);
1325 elog(ERROR, "unrecognized RTE kind: %d",
1326 (int) local_node->rtekind);
1330 READ_BOOL_FIELD(lateral);
1331 READ_BOOL_FIELD(inh);
1332 READ_BOOL_FIELD(inFromCl);
1333 READ_UINT_FIELD(requiredPerms);
1334 READ_OID_FIELD(checkAsUser);
1335 READ_BITMAPSET_FIELD(selectedCols);
1336 READ_BITMAPSET_FIELD(insertedCols);
1337 READ_BITMAPSET_FIELD(updatedCols);
1338 READ_NODE_FIELD(securityQuals);
1344 * _readRangeTblFunction
1346 static RangeTblFunction *
1347 _readRangeTblFunction(void)
1349 READ_LOCALS(RangeTblFunction);
1351 READ_NODE_FIELD(funcexpr);
1352 READ_INT_FIELD(funccolcount);
1353 READ_NODE_FIELD(funccolnames);
1354 READ_NODE_FIELD(funccoltypes);
1355 READ_NODE_FIELD(funccoltypmods);
1356 READ_NODE_FIELD(funccolcollations);
1357 READ_BITMAPSET_FIELD(funcparams);
1366 * Given a character string representing a node tree, parseNodeString creates
1367 * the internal node structure.
1369 * The string to be read must already have been loaded into pg_strtok().
1372 parseNodeString(void)
1378 token = pg_strtok(&length);
1380 #define MATCH(tokname, namelen) \
1381 (length == namelen && memcmp(token, tokname, namelen) == 0)
1383 if (MATCH("QUERY", 5))
1384 return_value = _readQuery();
1385 else if (MATCH("WITHCHECKOPTION", 15))
1386 return_value = _readWithCheckOption();
1387 else if (MATCH("SORTGROUPCLAUSE", 15))
1388 return_value = _readSortGroupClause();
1389 else if (MATCH("WINDOWCLAUSE", 12))
1390 return_value = _readWindowClause();
1391 else if (MATCH("ROWMARKCLAUSE", 13))
1392 return_value = _readRowMarkClause();
1393 else if (MATCH("COMMONTABLEEXPR", 15))
1394 return_value = _readCommonTableExpr();
1395 else if (MATCH("RANGETABLESAMPLE", 16))
1396 return_value = _readRangeTableSample();
1397 else if (MATCH("TABLESAMPLECLAUSE", 17))
1398 return_value = _readTableSampleClause();
1399 else if (MATCH("SETOPERATIONSTMT", 16))
1400 return_value = _readSetOperationStmt();
1401 else if (MATCH("ALIAS", 5))
1402 return_value = _readAlias();
1403 else if (MATCH("RANGEVAR", 8))
1404 return_value = _readRangeVar();
1405 else if (MATCH("INTOCLAUSE", 10))
1406 return_value = _readIntoClause();
1407 else if (MATCH("VAR", 3))
1408 return_value = _readVar();
1409 else if (MATCH("CONST", 5))
1410 return_value = _readConst();
1411 else if (MATCH("PARAM", 5))
1412 return_value = _readParam();
1413 else if (MATCH("AGGREF", 6))
1414 return_value = _readAggref();
1415 else if (MATCH("WINDOWFUNC", 10))
1416 return_value = _readWindowFunc();
1417 else if (MATCH("ARRAYREF", 8))
1418 return_value = _readArrayRef();
1419 else if (MATCH("FUNCEXPR", 8))
1420 return_value = _readFuncExpr();
1421 else if (MATCH("NAMEDARGEXPR", 12))
1422 return_value = _readNamedArgExpr();
1423 else if (MATCH("OPEXPR", 6))
1424 return_value = _readOpExpr();
1425 else if (MATCH("DISTINCTEXPR", 12))
1426 return_value = _readDistinctExpr();
1427 else if (MATCH("NULLIFEXPR", 10))
1428 return_value = _readNullIfExpr();
1429 else if (MATCH("SCALARARRAYOPEXPR", 17))
1430 return_value = _readScalarArrayOpExpr();
1431 else if (MATCH("BOOLEXPR", 8))
1432 return_value = _readBoolExpr();
1433 else if (MATCH("SUBLINK", 7))
1434 return_value = _readSubLink();
1435 else if (MATCH("FIELDSELECT", 11))
1436 return_value = _readFieldSelect();
1437 else if (MATCH("FIELDSTORE", 10))
1438 return_value = _readFieldStore();
1439 else if (MATCH("RELABELTYPE", 11))
1440 return_value = _readRelabelType();
1441 else if (MATCH("COERCEVIAIO", 11))
1442 return_value = _readCoerceViaIO();
1443 else if (MATCH("ARRAYCOERCEEXPR", 15))
1444 return_value = _readArrayCoerceExpr();
1445 else if (MATCH("CONVERTROWTYPEEXPR", 18))
1446 return_value = _readConvertRowtypeExpr();
1447 else if (MATCH("COLLATE", 7))
1448 return_value = _readCollateExpr();
1449 else if (MATCH("CASE", 4))
1450 return_value = _readCaseExpr();
1451 else if (MATCH("WHEN", 4))
1452 return_value = _readCaseWhen();
1453 else if (MATCH("CASETESTEXPR", 12))
1454 return_value = _readCaseTestExpr();
1455 else if (MATCH("ARRAY", 5))
1456 return_value = _readArrayExpr();
1457 else if (MATCH("ROW", 3))
1458 return_value = _readRowExpr();
1459 else if (MATCH("ROWCOMPARE", 10))
1460 return_value = _readRowCompareExpr();
1461 else if (MATCH("COALESCE", 8))
1462 return_value = _readCoalesceExpr();
1463 else if (MATCH("MINMAX", 6))
1464 return_value = _readMinMaxExpr();
1465 else if (MATCH("XMLEXPR", 7))
1466 return_value = _readXmlExpr();
1467 else if (MATCH("NULLTEST", 8))
1468 return_value = _readNullTest();
1469 else if (MATCH("BOOLEANTEST", 11))
1470 return_value = _readBooleanTest();
1471 else if (MATCH("COERCETODOMAIN", 14))
1472 return_value = _readCoerceToDomain();
1473 else if (MATCH("COERCETODOMAINVALUE", 19))
1474 return_value = _readCoerceToDomainValue();
1475 else if (MATCH("SETTODEFAULT", 12))
1476 return_value = _readSetToDefault();
1477 else if (MATCH("CURRENTOFEXPR", 13))
1478 return_value = _readCurrentOfExpr();
1479 else if (MATCH("INFERENCEELEM", 13))
1480 return_value = _readInferenceElem();
1481 else if (MATCH("TARGETENTRY", 11))
1482 return_value = _readTargetEntry();
1483 else if (MATCH("RANGETBLREF", 11))
1484 return_value = _readRangeTblRef();
1485 else if (MATCH("JOINEXPR", 8))
1486 return_value = _readJoinExpr();
1487 else if (MATCH("FROMEXPR", 8))
1488 return_value = _readFromExpr();
1489 else if (MATCH("ONCONFLICTEXPR", 14))
1490 return_value = _readOnConflictExpr();
1491 else if (MATCH("RTE", 3))
1492 return_value = _readRangeTblEntry();
1493 else if (MATCH("RANGETBLFUNCTION", 16))
1494 return_value = _readRangeTblFunction();
1495 else if (MATCH("NOTIFY", 6))
1496 return_value = _readNotifyStmt();
1497 else if (MATCH("DECLARECURSOR", 13))
1498 return_value = _readDeclareCursorStmt();
1501 elog(ERROR, "badly formatted node string \"%.32s\"...", token);
1502 return_value = NULL; /* keep compiler quiet */
1505 return (Node *) return_value;
1512 * Given a string representation of a constant, recreate the appropriate
1513 * Datum. The string representation embeds length info, but not byValue,
1514 * so we must be told that.
1517 readDatum(bool typbyval)
1527 * read the actual length of the value
1529 token = pg_strtok(&tokenLength);
1530 length = atoui(token);
1532 token = pg_strtok(&tokenLength); /* read the '[' */
1533 if (token == NULL || token[0] != '[')
1534 elog(ERROR, "expected \"[\" to start datum, but got \"%s\"; length = %zu",
1535 token ? (const char *) token : "[NULL]", length);
1539 if (length > (Size) sizeof(Datum))
1540 elog(ERROR, "byval datum but length = %zu", length);
1542 s = (char *) (&res);
1543 for (i = 0; i < (Size) sizeof(Datum); i++)
1545 token = pg_strtok(&tokenLength);
1546 s[i] = (char) atoi(token);
1549 else if (length <= 0)
1553 s = (char *) palloc(length);
1554 for (i = 0; i < length; i++)
1556 token = pg_strtok(&tokenLength);
1557 s[i] = (char) atoi(token);
1559 res = PointerGetDatum(s);
1562 token = pg_strtok(&tokenLength); /* read the ']' */
1563 if (token == NULL || token[0] != ']')
1564 elog(ERROR, "expected \"]\" to end datum, but got \"%s\"; length = %zu",
1565 token ? (const char *) token : "[NULL]", length);