Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * pg_proc.c
4 : * routines to support manipulation of the pg_proc relation
5 : *
6 : * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
7 : * Portions Copyright (c) 1994, Regents of the University of California
8 : *
9 : *
10 : * IDENTIFICATION
11 : * src/backend/catalog/pg_proc.c
12 : *
13 : *-------------------------------------------------------------------------
14 : */
15 : #include "postgres.h"
16 :
17 : #include "access/htup_details.h"
18 : #include "access/table.h"
19 : #include "access/xact.h"
20 : #include "catalog/catalog.h"
21 : #include "catalog/dependency.h"
22 : #include "catalog/indexing.h"
23 : #include "catalog/objectaccess.h"
24 : #include "catalog/pg_language.h"
25 : #include "catalog/pg_namespace.h"
26 : #include "catalog/pg_proc.h"
27 : #include "catalog/pg_transform.h"
28 : #include "catalog/pg_type.h"
29 : #include "commands/defrem.h"
30 : #include "executor/functions.h"
31 : #include "funcapi.h"
32 : #include "mb/pg_wchar.h"
33 : #include "miscadmin.h"
34 : #include "nodes/nodeFuncs.h"
35 : #include "parser/analyze.h"
36 : #include "parser/parse_coerce.h"
37 : #include "parser/parse_type.h"
38 : #include "pgstat.h"
39 : #include "rewrite/rewriteHandler.h"
40 : #include "tcop/pquery.h"
41 : #include "tcop/tcopprot.h"
42 : #include "utils/acl.h"
43 : #include "utils/builtins.h"
44 : #include "utils/lsyscache.h"
45 : #include "utils/regproc.h"
46 : #include "utils/rel.h"
47 : #include "utils/syscache.h"
48 :
49 :
50 : typedef struct
51 : {
52 : char *proname;
53 : char *prosrc;
54 : } parse_error_callback_arg;
55 :
56 : static void sql_function_parse_error_callback(void *arg);
57 : static int match_prosrc_to_query(const char *prosrc, const char *queryText,
58 : int cursorpos);
59 : static bool match_prosrc_to_literal(const char *prosrc, const char *literal,
60 : int cursorpos, int *newcursorpos);
61 :
62 :
63 : /* ----------------------------------------------------------------
64 : * ProcedureCreate
65 : *
66 : * Note: allParameterTypes, parameterModes, parameterNames, trftypes, and proconfig
67 : * are either arrays of the proper types or NULL. We declare them Datum,
68 : * not "ArrayType *", to avoid importing array.h into pg_proc.h.
69 : * ----------------------------------------------------------------
70 : */
71 : ObjectAddress
72 69186 : ProcedureCreate(const char *procedureName,
73 : Oid procNamespace,
74 : bool replace,
75 : bool returnsSet,
76 : Oid returnType,
77 : Oid proowner,
78 : Oid languageObjectId,
79 : Oid languageValidator,
80 : const char *prosrc,
81 : const char *probin,
82 : Node *prosqlbody,
83 : char prokind,
84 : bool security_definer,
85 : bool isLeakProof,
86 : bool isStrict,
87 : char volatility,
88 : char parallel,
89 : oidvector *parameterTypes,
90 : Datum allParameterTypes,
91 : Datum parameterModes,
92 : Datum parameterNames,
93 : List *parameterDefaults,
94 : Datum trftypes,
95 : Datum proconfig,
96 : Oid prosupport,
97 : float4 procost,
98 : float4 prorows)
99 : {
100 : Oid retval;
101 : int parameterCount;
102 : int allParamCount;
103 : Oid *allParams;
104 69186 : char *paramModes = NULL;
105 69186 : Oid variadicType = InvalidOid;
106 69186 : Acl *proacl = NULL;
107 : Relation rel;
108 : HeapTuple tup;
109 : HeapTuple oldtup;
110 : bool nulls[Natts_pg_proc];
111 : Datum values[Natts_pg_proc];
112 : bool replaces[Natts_pg_proc];
113 : NameData procname;
114 : TupleDesc tupDesc;
115 : bool is_update;
116 : ObjectAddress myself,
117 : referenced;
118 : char *detailmsg;
119 : int i;
120 : Oid trfid;
121 : ObjectAddresses *addrs;
122 :
123 : /*
124 : * sanity checks
125 : */
126 : Assert(PointerIsValid(prosrc));
127 :
128 69186 : parameterCount = parameterTypes->dim1;
129 69186 : if (parameterCount < 0 || parameterCount > FUNC_MAX_ARGS)
130 0 : ereport(ERROR,
131 : (errcode(ERRCODE_TOO_MANY_ARGUMENTS),
132 : errmsg_plural("functions cannot have more than %d argument",
133 : "functions cannot have more than %d arguments",
134 : FUNC_MAX_ARGS,
135 : FUNC_MAX_ARGS)));
136 : /* note: the above is correct, we do NOT count output arguments */
137 :
138 : /* Deconstruct array inputs */
139 69186 : if (allParameterTypes != PointerGetDatum(NULL))
140 : {
141 : /*
142 : * We expect the array to be a 1-D OID array; verify that. We don't
143 : * need to use deconstruct_array() since the array data is just going
144 : * to look like a C array of OID values.
145 : */
146 7488 : ArrayType *allParamArray = (ArrayType *) DatumGetPointer(allParameterTypes);
147 :
148 7488 : allParamCount = ARR_DIMS(allParamArray)[0];
149 7488 : if (ARR_NDIM(allParamArray) != 1 ||
150 7488 : allParamCount <= 0 ||
151 7488 : ARR_HASNULL(allParamArray) ||
152 7488 : ARR_ELEMTYPE(allParamArray) != OIDOID)
153 0 : elog(ERROR, "allParameterTypes is not a 1-D Oid array");
154 7488 : allParams = (Oid *) ARR_DATA_PTR(allParamArray);
155 : Assert(allParamCount >= parameterCount);
156 : /* we assume caller got the contents right */
157 : }
158 : else
159 : {
160 61698 : allParamCount = parameterCount;
161 61698 : allParams = parameterTypes->values;
162 : }
163 :
164 69186 : if (parameterModes != PointerGetDatum(NULL))
165 : {
166 : /*
167 : * We expect the array to be a 1-D CHAR array; verify that. We don't
168 : * need to use deconstruct_array() since the array data is just going
169 : * to look like a C array of char values.
170 : */
171 7488 : ArrayType *modesArray = (ArrayType *) DatumGetPointer(parameterModes);
172 :
173 7488 : if (ARR_NDIM(modesArray) != 1 ||
174 7488 : ARR_DIMS(modesArray)[0] != allParamCount ||
175 7488 : ARR_HASNULL(modesArray) ||
176 7488 : ARR_ELEMTYPE(modesArray) != CHAROID)
177 0 : elog(ERROR, "parameterModes is not a 1-D char array");
178 7488 : paramModes = (char *) ARR_DATA_PTR(modesArray);
179 : }
180 :
181 : /*
182 : * Do not allow polymorphic return type unless there is a polymorphic
183 : * input argument that we can use to deduce the actual return type.
184 : */
185 69186 : detailmsg = check_valid_polymorphic_signature(returnType,
186 69186 : parameterTypes->values,
187 : parameterCount);
188 69186 : if (detailmsg)
189 78 : ereport(ERROR,
190 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
191 : errmsg("cannot determine result data type"),
192 : errdetail_internal("%s", detailmsg)));
193 :
194 : /*
195 : * Also, do not allow return type INTERNAL unless at least one input
196 : * argument is INTERNAL.
197 : */
198 69108 : detailmsg = check_valid_internal_signature(returnType,
199 69108 : parameterTypes->values,
200 : parameterCount);
201 69108 : if (detailmsg)
202 0 : ereport(ERROR,
203 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
204 : errmsg("unsafe use of pseudo-type \"internal\""),
205 : errdetail_internal("%s", detailmsg)));
206 :
207 : /*
208 : * Apply the same tests to any OUT arguments.
209 : */
210 69108 : if (allParameterTypes != PointerGetDatum(NULL))
211 : {
212 52338 : for (i = 0; i < allParamCount; i++)
213 : {
214 44898 : if (paramModes == NULL ||
215 44898 : paramModes[i] == PROARGMODE_IN ||
216 28826 : paramModes[i] == PROARGMODE_VARIADIC)
217 18706 : continue; /* ignore input-only params */
218 :
219 26192 : detailmsg = check_valid_polymorphic_signature(allParams[i],
220 26192 : parameterTypes->values,
221 : parameterCount);
222 26192 : if (detailmsg)
223 48 : ereport(ERROR,
224 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
225 : errmsg("cannot determine result data type"),
226 : errdetail_internal("%s", detailmsg)));
227 26144 : detailmsg = check_valid_internal_signature(allParams[i],
228 26144 : parameterTypes->values,
229 : parameterCount);
230 26144 : if (detailmsg)
231 0 : ereport(ERROR,
232 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
233 : errmsg("unsafe use of pseudo-type \"internal\""),
234 : errdetail_internal("%s", detailmsg)));
235 : }
236 : }
237 :
238 : /* Identify variadic argument type, if any */
239 69060 : if (paramModes != NULL)
240 : {
241 : /*
242 : * Only the last input parameter can be variadic; if it is, save its
243 : * element type. Errors here are just elog since caller should have
244 : * checked this already.
245 : */
246 52230 : for (i = 0; i < allParamCount; i++)
247 : {
248 44790 : switch (paramModes[i])
249 : {
250 16160 : case PROARGMODE_IN:
251 : case PROARGMODE_INOUT:
252 16160 : if (OidIsValid(variadicType))
253 0 : elog(ERROR, "variadic parameter must be last");
254 16160 : break;
255 25668 : case PROARGMODE_OUT:
256 25668 : if (OidIsValid(variadicType) && prokind == PROKIND_PROCEDURE)
257 0 : elog(ERROR, "variadic parameter must be last");
258 25668 : break;
259 328 : case PROARGMODE_TABLE:
260 : /* okay */
261 328 : break;
262 2634 : case PROARGMODE_VARIADIC:
263 2634 : if (OidIsValid(variadicType))
264 0 : elog(ERROR, "variadic parameter must be last");
265 2634 : switch (allParams[i])
266 : {
267 8 : case ANYOID:
268 8 : variadicType = ANYOID;
269 8 : break;
270 40 : case ANYARRAYOID:
271 40 : variadicType = ANYELEMENTOID;
272 40 : break;
273 22 : case ANYCOMPATIBLEARRAYOID:
274 22 : variadicType = ANYCOMPATIBLEOID;
275 22 : break;
276 2564 : default:
277 2564 : variadicType = get_element_type(allParams[i]);
278 2564 : if (!OidIsValid(variadicType))
279 0 : elog(ERROR, "variadic parameter is not an array");
280 2564 : break;
281 : }
282 2634 : break;
283 0 : default:
284 0 : elog(ERROR, "invalid parameter mode '%c'", paramModes[i]);
285 : break;
286 : }
287 : }
288 : }
289 :
290 : /*
291 : * All seems OK; prepare the data to be inserted into pg_proc.
292 : */
293 :
294 2140860 : for (i = 0; i < Natts_pg_proc; ++i)
295 : {
296 2071800 : nulls[i] = false;
297 2071800 : values[i] = (Datum) 0;
298 2071800 : replaces[i] = true;
299 : }
300 :
301 69060 : namestrcpy(&procname, procedureName);
302 69060 : values[Anum_pg_proc_proname - 1] = NameGetDatum(&procname);
303 69060 : values[Anum_pg_proc_pronamespace - 1] = ObjectIdGetDatum(procNamespace);
304 69060 : values[Anum_pg_proc_proowner - 1] = ObjectIdGetDatum(proowner);
305 69060 : values[Anum_pg_proc_prolang - 1] = ObjectIdGetDatum(languageObjectId);
306 69060 : values[Anum_pg_proc_procost - 1] = Float4GetDatum(procost);
307 69060 : values[Anum_pg_proc_prorows - 1] = Float4GetDatum(prorows);
308 69060 : values[Anum_pg_proc_provariadic - 1] = ObjectIdGetDatum(variadicType);
309 69060 : values[Anum_pg_proc_prosupport - 1] = ObjectIdGetDatum(prosupport);
310 69060 : values[Anum_pg_proc_prokind - 1] = CharGetDatum(prokind);
311 69060 : values[Anum_pg_proc_prosecdef - 1] = BoolGetDatum(security_definer);
312 69060 : values[Anum_pg_proc_proleakproof - 1] = BoolGetDatum(isLeakProof);
313 69060 : values[Anum_pg_proc_proisstrict - 1] = BoolGetDatum(isStrict);
314 69060 : values[Anum_pg_proc_proretset - 1] = BoolGetDatum(returnsSet);
315 69060 : values[Anum_pg_proc_provolatile - 1] = CharGetDatum(volatility);
316 69060 : values[Anum_pg_proc_proparallel - 1] = CharGetDatum(parallel);
317 69060 : values[Anum_pg_proc_pronargs - 1] = UInt16GetDatum(parameterCount);
318 69060 : values[Anum_pg_proc_pronargdefaults - 1] = UInt16GetDatum(list_length(parameterDefaults));
319 69060 : values[Anum_pg_proc_prorettype - 1] = ObjectIdGetDatum(returnType);
320 69060 : values[Anum_pg_proc_proargtypes - 1] = PointerGetDatum(parameterTypes);
321 69060 : if (allParameterTypes != PointerGetDatum(NULL))
322 7440 : values[Anum_pg_proc_proallargtypes - 1] = allParameterTypes;
323 : else
324 61620 : nulls[Anum_pg_proc_proallargtypes - 1] = true;
325 69060 : if (parameterModes != PointerGetDatum(NULL))
326 7440 : values[Anum_pg_proc_proargmodes - 1] = parameterModes;
327 : else
328 61620 : nulls[Anum_pg_proc_proargmodes - 1] = true;
329 69060 : if (parameterNames != PointerGetDatum(NULL))
330 25790 : values[Anum_pg_proc_proargnames - 1] = parameterNames;
331 : else
332 43270 : nulls[Anum_pg_proc_proargnames - 1] = true;
333 69060 : if (parameterDefaults != NIL)
334 18308 : values[Anum_pg_proc_proargdefaults - 1] = CStringGetTextDatum(nodeToString(parameterDefaults));
335 : else
336 50752 : nulls[Anum_pg_proc_proargdefaults - 1] = true;
337 69060 : if (trftypes != PointerGetDatum(NULL))
338 118 : values[Anum_pg_proc_protrftypes - 1] = trftypes;
339 : else
340 68942 : nulls[Anum_pg_proc_protrftypes - 1] = true;
341 69060 : values[Anum_pg_proc_prosrc - 1] = CStringGetTextDatum(prosrc);
342 69060 : if (probin)
343 7006 : values[Anum_pg_proc_probin - 1] = CStringGetTextDatum(probin);
344 : else
345 62054 : nulls[Anum_pg_proc_probin - 1] = true;
346 69060 : if (prosqlbody)
347 33846 : values[Anum_pg_proc_prosqlbody - 1] = CStringGetTextDatum(nodeToString(prosqlbody));
348 : else
349 35214 : nulls[Anum_pg_proc_prosqlbody - 1] = true;
350 69060 : if (proconfig != PointerGetDatum(NULL))
351 56 : values[Anum_pg_proc_proconfig - 1] = proconfig;
352 : else
353 69004 : nulls[Anum_pg_proc_proconfig - 1] = true;
354 : /* proacl will be determined later */
355 :
356 69060 : rel = table_open(ProcedureRelationId, RowExclusiveLock);
357 69060 : tupDesc = RelationGetDescr(rel);
358 :
359 : /* Check for pre-existing definition */
360 69060 : oldtup = SearchSysCache3(PROCNAMEARGSNSP,
361 : PointerGetDatum(procedureName),
362 : PointerGetDatum(parameterTypes),
363 : ObjectIdGetDatum(procNamespace));
364 :
365 69060 : if (HeapTupleIsValid(oldtup))
366 : {
367 : /* There is one; okay to replace it? */
368 46592 : Form_pg_proc oldproc = (Form_pg_proc) GETSTRUCT(oldtup);
369 : Datum proargnames;
370 : bool isnull;
371 : const char *dropcmd;
372 :
373 46592 : if (!replace)
374 0 : ereport(ERROR,
375 : (errcode(ERRCODE_DUPLICATE_FUNCTION),
376 : errmsg("function \"%s\" already exists with same argument types",
377 : procedureName)));
378 46592 : if (!object_ownercheck(ProcedureRelationId, oldproc->oid, proowner))
379 0 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
380 : procedureName);
381 :
382 : /* Not okay to change routine kind */
383 46592 : if (oldproc->prokind != prokind)
384 18 : ereport(ERROR,
385 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
386 : errmsg("cannot change routine kind"),
387 : (oldproc->prokind == PROKIND_AGGREGATE ?
388 : errdetail("\"%s\" is an aggregate function.", procedureName) :
389 : oldproc->prokind == PROKIND_FUNCTION ?
390 : errdetail("\"%s\" is a function.", procedureName) :
391 : oldproc->prokind == PROKIND_PROCEDURE ?
392 : errdetail("\"%s\" is a procedure.", procedureName) :
393 : oldproc->prokind == PROKIND_WINDOW ?
394 : errdetail("\"%s\" is a window function.", procedureName) :
395 : 0)));
396 :
397 46574 : dropcmd = (prokind == PROKIND_PROCEDURE ? "DROP PROCEDURE" :
398 : prokind == PROKIND_AGGREGATE ? "DROP AGGREGATE" :
399 : "DROP FUNCTION");
400 :
401 : /*
402 : * Not okay to change the return type of the existing proc, since
403 : * existing rules, views, etc may depend on the return type.
404 : *
405 : * In case of a procedure, a changing return type means that whether
406 : * the procedure has output parameters was changed. Since there is no
407 : * user visible return type, we produce a more specific error message.
408 : */
409 46574 : if (returnType != oldproc->prorettype ||
410 46562 : returnsSet != oldproc->proretset)
411 12 : ereport(ERROR,
412 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
413 : prokind == PROKIND_PROCEDURE
414 : ? errmsg("cannot change whether a procedure has output parameters")
415 : : errmsg("cannot change return type of existing function"),
416 :
417 : /*
418 : * translator: first %s is DROP FUNCTION, DROP PROCEDURE, or DROP
419 : * AGGREGATE
420 : */
421 : errhint("Use %s %s first.",
422 : dropcmd,
423 : format_procedure(oldproc->oid))));
424 :
425 : /*
426 : * If it returns RECORD, check for possible change of record type
427 : * implied by OUT parameters
428 : */
429 46562 : if (returnType == RECORDOID)
430 : {
431 : TupleDesc olddesc;
432 : TupleDesc newdesc;
433 :
434 5492 : olddesc = build_function_result_tupdesc_t(oldtup);
435 5492 : newdesc = build_function_result_tupdesc_d(prokind,
436 : allParameterTypes,
437 : parameterModes,
438 : parameterNames);
439 5492 : if (olddesc == NULL && newdesc == NULL)
440 : /* ok, both are runtime-defined RECORDs */ ;
441 5466 : else if (olddesc == NULL || newdesc == NULL ||
442 5466 : !equalTupleDescs(olddesc, newdesc))
443 0 : ereport(ERROR,
444 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
445 : errmsg("cannot change return type of existing function"),
446 : errdetail("Row type defined by OUT parameters is different."),
447 : /* translator: first %s is DROP FUNCTION or DROP PROCEDURE */
448 : errhint("Use %s %s first.",
449 : dropcmd,
450 : format_procedure(oldproc->oid))));
451 : }
452 :
453 : /*
454 : * If there were any named input parameters, check to make sure the
455 : * names have not been changed, as this could break existing calls. We
456 : * allow adding names to formerly unnamed parameters, though.
457 : */
458 46562 : proargnames = SysCacheGetAttr(PROCNAMEARGSNSP, oldtup,
459 : Anum_pg_proc_proargnames,
460 : &isnull);
461 46562 : if (!isnull)
462 : {
463 : Datum proargmodes;
464 : char **old_arg_names;
465 : char **new_arg_names;
466 : int n_old_arg_names;
467 : int n_new_arg_names;
468 : int j;
469 :
470 7922 : proargmodes = SysCacheGetAttr(PROCNAMEARGSNSP, oldtup,
471 : Anum_pg_proc_proargmodes,
472 : &isnull);
473 7922 : if (isnull)
474 2438 : proargmodes = PointerGetDatum(NULL); /* just to be sure */
475 :
476 7922 : n_old_arg_names = get_func_input_arg_names(proargnames,
477 : proargmodes,
478 : &old_arg_names);
479 7922 : n_new_arg_names = get_func_input_arg_names(parameterNames,
480 : parameterModes,
481 : &new_arg_names);
482 32098 : for (j = 0; j < n_old_arg_names; j++)
483 : {
484 24194 : if (old_arg_names[j] == NULL)
485 6 : continue;
486 24188 : if (j >= n_new_arg_names || new_arg_names[j] == NULL ||
487 24182 : strcmp(old_arg_names[j], new_arg_names[j]) != 0)
488 18 : ereport(ERROR,
489 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
490 : errmsg("cannot change name of input parameter \"%s\"",
491 : old_arg_names[j]),
492 : /* translator: first %s is DROP FUNCTION or DROP PROCEDURE */
493 : errhint("Use %s %s first.",
494 : dropcmd,
495 : format_procedure(oldproc->oid))));
496 : }
497 : }
498 :
499 : /*
500 : * If there are existing defaults, check compatibility: redefinition
501 : * must not remove any defaults nor change their types. (Removing a
502 : * default might cause a function to fail to satisfy an existing call.
503 : * Changing type would only be possible if the associated parameter is
504 : * polymorphic, and in such cases a change of default type might alter
505 : * the resolved output type of existing calls.)
506 : */
507 46544 : if (oldproc->pronargdefaults != 0)
508 : {
509 : Datum proargdefaults;
510 : List *oldDefaults;
511 : ListCell *oldlc;
512 : ListCell *newlc;
513 :
514 6 : if (list_length(parameterDefaults) < oldproc->pronargdefaults)
515 6 : ereport(ERROR,
516 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
517 : errmsg("cannot remove parameter defaults from existing function"),
518 : /* translator: first %s is DROP FUNCTION or DROP PROCEDURE */
519 : errhint("Use %s %s first.",
520 : dropcmd,
521 : format_procedure(oldproc->oid))));
522 :
523 0 : proargdefaults = SysCacheGetAttrNotNull(PROCNAMEARGSNSP, oldtup,
524 : Anum_pg_proc_proargdefaults);
525 0 : oldDefaults = castNode(List, stringToNode(TextDatumGetCString(proargdefaults)));
526 : Assert(list_length(oldDefaults) == oldproc->pronargdefaults);
527 :
528 : /* new list can have more defaults than old, advance over 'em */
529 0 : newlc = list_nth_cell(parameterDefaults,
530 0 : list_length(parameterDefaults) -
531 0 : oldproc->pronargdefaults);
532 :
533 0 : foreach(oldlc, oldDefaults)
534 : {
535 0 : Node *oldDef = (Node *) lfirst(oldlc);
536 0 : Node *newDef = (Node *) lfirst(newlc);
537 :
538 0 : if (exprType(oldDef) != exprType(newDef))
539 0 : ereport(ERROR,
540 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
541 : errmsg("cannot change data type of existing parameter default value"),
542 : /* translator: first %s is DROP FUNCTION or DROP PROCEDURE */
543 : errhint("Use %s %s first.",
544 : dropcmd,
545 : format_procedure(oldproc->oid))));
546 0 : newlc = lnext(parameterDefaults, newlc);
547 : }
548 : }
549 :
550 : /*
551 : * Do not change existing oid, ownership or permissions, either. Note
552 : * dependency-update code below has to agree with this decision.
553 : */
554 46538 : replaces[Anum_pg_proc_oid - 1] = false;
555 46538 : replaces[Anum_pg_proc_proowner - 1] = false;
556 46538 : replaces[Anum_pg_proc_proacl - 1] = false;
557 :
558 : /* Okay, do it... */
559 46538 : tup = heap_modify_tuple(oldtup, tupDesc, values, nulls, replaces);
560 46538 : CatalogTupleUpdate(rel, &tup->t_self, tup);
561 :
562 46538 : ReleaseSysCache(oldtup);
563 46538 : is_update = true;
564 : }
565 : else
566 : {
567 : /* Creating a new procedure */
568 : Oid newOid;
569 :
570 : /* First, get default permissions and set up proacl */
571 22468 : proacl = get_user_default_acl(OBJECT_FUNCTION, proowner,
572 : procNamespace);
573 22468 : if (proacl != NULL)
574 18 : values[Anum_pg_proc_proacl - 1] = PointerGetDatum(proacl);
575 : else
576 22450 : nulls[Anum_pg_proc_proacl - 1] = true;
577 :
578 22468 : newOid = GetNewOidWithIndex(rel, ProcedureOidIndexId,
579 : Anum_pg_proc_oid);
580 22468 : values[Anum_pg_proc_oid - 1] = ObjectIdGetDatum(newOid);
581 22468 : tup = heap_form_tuple(tupDesc, values, nulls);
582 22468 : CatalogTupleInsert(rel, tup);
583 22468 : is_update = false;
584 : }
585 :
586 :
587 69006 : retval = ((Form_pg_proc) GETSTRUCT(tup))->oid;
588 :
589 : /*
590 : * Create dependencies for the new function. If we are updating an
591 : * existing function, first delete any existing pg_depend entries.
592 : * (However, since we are not changing ownership or permissions, the
593 : * shared dependencies do *not* need to change, and we leave them alone.)
594 : */
595 69006 : if (is_update)
596 46538 : deleteDependencyRecordsFor(ProcedureRelationId, retval, true);
597 :
598 69006 : addrs = new_object_addresses();
599 :
600 69006 : ObjectAddressSet(myself, ProcedureRelationId, retval);
601 :
602 : /* dependency on namespace */
603 69006 : ObjectAddressSet(referenced, NamespaceRelationId, procNamespace);
604 69006 : add_exact_object_address(&referenced, addrs);
605 :
606 : /* dependency on implementation language */
607 69006 : ObjectAddressSet(referenced, LanguageRelationId, languageObjectId);
608 69006 : add_exact_object_address(&referenced, addrs);
609 :
610 : /* dependency on return type */
611 69006 : ObjectAddressSet(referenced, TypeRelationId, returnType);
612 69006 : add_exact_object_address(&referenced, addrs);
613 :
614 : /* dependency on transform used by return type, if any */
615 69006 : if ((trfid = get_transform_oid(returnType, languageObjectId, true)))
616 : {
617 334 : ObjectAddressSet(referenced, TransformRelationId, trfid);
618 334 : add_exact_object_address(&referenced, addrs);
619 : }
620 :
621 : /* dependency on parameter types */
622 248668 : for (i = 0; i < allParamCount; i++)
623 : {
624 179662 : ObjectAddressSet(referenced, TypeRelationId, allParams[i]);
625 179662 : add_exact_object_address(&referenced, addrs);
626 :
627 : /* dependency on transform used by parameter type, if any */
628 179662 : if ((trfid = get_transform_oid(allParams[i], languageObjectId, true)))
629 : {
630 710 : ObjectAddressSet(referenced, TransformRelationId, trfid);
631 710 : add_exact_object_address(&referenced, addrs);
632 : }
633 : }
634 :
635 : /* dependency on support function, if any */
636 69006 : if (OidIsValid(prosupport))
637 : {
638 12 : ObjectAddressSet(referenced, ProcedureRelationId, prosupport);
639 12 : add_exact_object_address(&referenced, addrs);
640 : }
641 :
642 69006 : record_object_address_dependencies(&myself, addrs, DEPENDENCY_NORMAL);
643 69006 : free_object_addresses(addrs);
644 :
645 : /* dependency on SQL routine body */
646 69006 : if (languageObjectId == SQLlanguageId && prosqlbody)
647 33846 : recordDependencyOnExpr(&myself, prosqlbody, NIL, DEPENDENCY_NORMAL);
648 :
649 : /* dependency on parameter default expressions */
650 69006 : if (parameterDefaults)
651 18296 : recordDependencyOnExpr(&myself, (Node *) parameterDefaults,
652 : NIL, DEPENDENCY_NORMAL);
653 :
654 : /* dependency on owner */
655 69006 : if (!is_update)
656 22468 : recordDependencyOnOwner(ProcedureRelationId, retval, proowner);
657 :
658 : /* dependency on any roles mentioned in ACL */
659 69006 : if (!is_update)
660 22468 : recordDependencyOnNewAcl(ProcedureRelationId, retval, 0,
661 : proowner, proacl);
662 :
663 : /* dependency on extension */
664 69006 : recordDependencyOnCurrentExtension(&myself, is_update);
665 :
666 69004 : heap_freetuple(tup);
667 :
668 : /* Post creation hook for new function */
669 69004 : InvokeObjectPostCreateHook(ProcedureRelationId, retval, 0);
670 :
671 69004 : table_close(rel, RowExclusiveLock);
672 :
673 : /* Verify function body */
674 69004 : if (OidIsValid(languageValidator))
675 : {
676 68296 : ArrayType *set_items = NULL;
677 68296 : int save_nestlevel = 0;
678 :
679 : /* Advance command counter so new tuple can be seen by validator */
680 68296 : CommandCounterIncrement();
681 :
682 : /*
683 : * Set per-function configuration parameters so that the validation is
684 : * done with the environment the function expects. However, if
685 : * check_function_bodies is off, we don't do this, because that would
686 : * create dump ordering hazards that pg_dump doesn't know how to deal
687 : * with. (For example, a SET clause might refer to a not-yet-created
688 : * text search configuration.) This means that the validator
689 : * shouldn't complain about anything that might depend on a GUC
690 : * parameter when check_function_bodies is off.
691 : */
692 68296 : if (check_function_bodies)
693 : {
694 61502 : set_items = (ArrayType *) DatumGetPointer(proconfig);
695 61502 : if (set_items) /* Need a new GUC nesting level */
696 : {
697 44 : save_nestlevel = NewGUCNestLevel();
698 44 : ProcessGUCArray(set_items,
699 44 : (superuser() ? PGC_SUSET : PGC_USERSET),
700 : PGC_S_SESSION,
701 : GUC_ACTION_SAVE);
702 : }
703 : }
704 :
705 68284 : OidFunctionCall1(languageValidator, ObjectIdGetDatum(retval));
706 :
707 68108 : if (set_items)
708 32 : AtEOXact_GUC(true, save_nestlevel);
709 : }
710 :
711 : /* ensure that stats are dropped if transaction aborts */
712 68816 : if (!is_update)
713 22280 : pgstat_create_function(retval);
714 :
715 68816 : return myself;
716 : }
717 :
718 :
719 :
720 : /*
721 : * Validator for internal functions
722 : *
723 : * Check that the given internal function name (the "prosrc" value) is
724 : * a known builtin function.
725 : */
726 : Datum
727 19406 : fmgr_internal_validator(PG_FUNCTION_ARGS)
728 : {
729 19406 : Oid funcoid = PG_GETARG_OID(0);
730 : HeapTuple tuple;
731 : Datum tmp;
732 : char *prosrc;
733 :
734 19406 : if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
735 0 : PG_RETURN_VOID();
736 :
737 : /*
738 : * We do not honor check_function_bodies since it's unlikely the function
739 : * name will be found later if it isn't there now.
740 : */
741 :
742 19406 : tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
743 19406 : if (!HeapTupleIsValid(tuple))
744 0 : elog(ERROR, "cache lookup failed for function %u", funcoid);
745 :
746 19406 : tmp = SysCacheGetAttrNotNull(PROCOID, tuple, Anum_pg_proc_prosrc);
747 19406 : prosrc = TextDatumGetCString(tmp);
748 :
749 19406 : if (fmgr_internal_function(prosrc) == InvalidOid)
750 6 : ereport(ERROR,
751 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
752 : errmsg("there is no built-in function named \"%s\"",
753 : prosrc)));
754 :
755 19400 : ReleaseSysCache(tuple);
756 :
757 19400 : PG_RETURN_VOID();
758 : }
759 :
760 :
761 :
762 : /*
763 : * Validator for C language functions
764 : *
765 : * Make sure that the library file exists, is loadable, and contains
766 : * the specified link symbol. Also check for a valid function
767 : * information record.
768 : */
769 : Datum
770 7006 : fmgr_c_validator(PG_FUNCTION_ARGS)
771 : {
772 7006 : Oid funcoid = PG_GETARG_OID(0);
773 : void *libraryhandle;
774 : HeapTuple tuple;
775 : Datum tmp;
776 : char *prosrc;
777 : char *probin;
778 :
779 7006 : if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
780 0 : PG_RETURN_VOID();
781 :
782 : /*
783 : * It'd be most consistent to skip the check if !check_function_bodies,
784 : * but the purpose of that switch is to be helpful for pg_dump loading,
785 : * and for pg_dump loading it's much better if we *do* check.
786 : */
787 :
788 7006 : tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
789 7006 : if (!HeapTupleIsValid(tuple))
790 0 : elog(ERROR, "cache lookup failed for function %u", funcoid);
791 :
792 7006 : tmp = SysCacheGetAttrNotNull(PROCOID, tuple, Anum_pg_proc_prosrc);
793 7006 : prosrc = TextDatumGetCString(tmp);
794 :
795 7006 : tmp = SysCacheGetAttrNotNull(PROCOID, tuple, Anum_pg_proc_probin);
796 7006 : probin = TextDatumGetCString(tmp);
797 :
798 7006 : (void) load_external_function(probin, prosrc, true, &libraryhandle);
799 6994 : (void) fetch_finfo_record(libraryhandle, prosrc);
800 :
801 6994 : ReleaseSysCache(tuple);
802 :
803 6994 : PG_RETURN_VOID();
804 : }
805 :
806 :
807 : /*
808 : * Validator for SQL language functions
809 : *
810 : * Parse it here in order to be sure that it contains no syntax errors.
811 : */
812 : Datum
813 36822 : fmgr_sql_validator(PG_FUNCTION_ARGS)
814 : {
815 36822 : Oid funcoid = PG_GETARG_OID(0);
816 : HeapTuple tuple;
817 : Form_pg_proc proc;
818 : List *raw_parsetree_list;
819 : List *querytree_list;
820 : ListCell *lc;
821 : bool isnull;
822 : Datum tmp;
823 : char *prosrc;
824 : parse_error_callback_arg callback_arg;
825 : ErrorContextCallback sqlerrcontext;
826 : bool haspolyarg;
827 : int i;
828 :
829 36822 : if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
830 0 : PG_RETURN_VOID();
831 :
832 36822 : tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
833 36822 : if (!HeapTupleIsValid(tuple))
834 0 : elog(ERROR, "cache lookup failed for function %u", funcoid);
835 36822 : proc = (Form_pg_proc) GETSTRUCT(tuple);
836 :
837 : /* Disallow pseudotype result */
838 : /* except for RECORD, VOID, or polymorphic */
839 36822 : if (get_typtype(proc->prorettype) == TYPTYPE_PSEUDO &&
840 3914 : proc->prorettype != RECORDOID &&
841 1800 : proc->prorettype != VOIDOID &&
842 364 : !IsPolymorphicType(proc->prorettype))
843 6 : ereport(ERROR,
844 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
845 : errmsg("SQL functions cannot return type %s",
846 : format_type_be(proc->prorettype))));
847 :
848 : /* Disallow pseudotypes in arguments */
849 : /* except for polymorphic */
850 36816 : haspolyarg = false;
851 110332 : for (i = 0; i < proc->pronargs; i++)
852 : {
853 73516 : if (get_typtype(proc->proargtypes.values[i]) == TYPTYPE_PSEUDO)
854 : {
855 1448 : if (IsPolymorphicType(proc->proargtypes.values[i]))
856 1448 : haspolyarg = true;
857 : else
858 0 : ereport(ERROR,
859 : (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
860 : errmsg("SQL functions cannot have arguments of type %s",
861 : format_type_be(proc->proargtypes.values[i]))));
862 : }
863 : }
864 :
865 : /* Postpone body checks if !check_function_bodies */
866 36816 : if (check_function_bodies)
867 : {
868 36484 : tmp = SysCacheGetAttrNotNull(PROCOID, tuple, Anum_pg_proc_prosrc);
869 36484 : prosrc = TextDatumGetCString(tmp);
870 :
871 : /*
872 : * Setup error traceback support for ereport().
873 : */
874 36484 : callback_arg.proname = NameStr(proc->proname);
875 36484 : callback_arg.prosrc = prosrc;
876 :
877 36484 : sqlerrcontext.callback = sql_function_parse_error_callback;
878 36484 : sqlerrcontext.arg = (void *) &callback_arg;
879 36484 : sqlerrcontext.previous = error_context_stack;
880 36484 : error_context_stack = &sqlerrcontext;
881 :
882 : /* If we have prosqlbody, pay attention to that not prosrc */
883 36484 : tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_prosqlbody, &isnull);
884 36484 : if (!isnull)
885 : {
886 : Node *n;
887 : List *stored_query_list;
888 :
889 33838 : n = stringToNode(TextDatumGetCString(tmp));
890 33838 : if (IsA(n, List))
891 4286 : stored_query_list = linitial(castNode(List, n));
892 : else
893 29552 : stored_query_list = list_make1(n);
894 :
895 33838 : querytree_list = NIL;
896 67676 : foreach(lc, stored_query_list)
897 : {
898 33838 : Query *parsetree = lfirst_node(Query, lc);
899 : List *querytree_sublist;
900 :
901 : /*
902 : * Typically, we'd have acquired locks already while parsing
903 : * the body of the CREATE FUNCTION command. However, a
904 : * validator function cannot assume that it's only called in
905 : * that context.
906 : */
907 33838 : AcquireRewriteLocks(parsetree, true, false);
908 33838 : querytree_sublist = pg_rewrite_query(parsetree);
909 33838 : querytree_list = lappend(querytree_list, querytree_sublist);
910 : }
911 : }
912 : else
913 : {
914 : /*
915 : * We can't do full prechecking of the function definition if
916 : * there are any polymorphic input types, because actual datatypes
917 : * of expression results will be unresolvable. The check will be
918 : * done at runtime instead.
919 : *
920 : * We can run the text through the raw parser though; this will at
921 : * least catch silly syntactic errors.
922 : */
923 2646 : raw_parsetree_list = pg_parse_query(prosrc);
924 2640 : querytree_list = NIL;
925 :
926 2640 : if (!haspolyarg)
927 : {
928 : /*
929 : * OK to do full precheck: analyze and rewrite the queries,
930 : * then verify the result type.
931 : */
932 : SQLFunctionParseInfoPtr pinfo;
933 :
934 : /* But first, set up parameter information */
935 1536 : pinfo = prepare_sql_fn_parse_info(tuple, NULL, InvalidOid);
936 :
937 3182 : foreach(lc, raw_parsetree_list)
938 : {
939 1658 : RawStmt *parsetree = lfirst_node(RawStmt, lc);
940 : List *querytree_sublist;
941 :
942 1658 : querytree_sublist = pg_analyze_and_rewrite_withcb(parsetree,
943 : prosrc,
944 : (ParserSetupHook) sql_fn_parser_setup,
945 : pinfo,
946 : NULL);
947 1646 : querytree_list = lappend(querytree_list,
948 : querytree_sublist);
949 : }
950 : }
951 : }
952 :
953 36466 : if (!haspolyarg)
954 : {
955 : Oid rettype;
956 : TupleDesc rettupdesc;
957 :
958 35362 : check_sql_fn_statements(querytree_list);
959 :
960 35356 : (void) get_func_result_type(funcoid, &rettype, &rettupdesc);
961 :
962 35356 : (void) check_sql_fn_retval(querytree_list,
963 : rettype, rettupdesc,
964 : false, NULL);
965 : }
966 :
967 36448 : error_context_stack = sqlerrcontext.previous;
968 : }
969 :
970 36780 : ReleaseSysCache(tuple);
971 :
972 36780 : PG_RETURN_VOID();
973 : }
974 :
975 : /*
976 : * Error context callback for handling errors in SQL function definitions
977 : */
978 : static void
979 36 : sql_function_parse_error_callback(void *arg)
980 : {
981 36 : parse_error_callback_arg *callback_arg = (parse_error_callback_arg *) arg;
982 :
983 : /* See if it's a syntax error; if so, transpose to CREATE FUNCTION */
984 36 : if (!function_parse_error_transpose(callback_arg->prosrc))
985 : {
986 : /* If it's not a syntax error, push info onto context stack */
987 18 : errcontext("SQL function \"%s\"", callback_arg->proname);
988 : }
989 36 : }
990 :
991 : /*
992 : * Adjust a syntax error occurring inside the function body of a CREATE
993 : * FUNCTION or DO command. This can be used by any function validator or
994 : * anonymous-block handler, not only for SQL-language functions.
995 : * It is assumed that the syntax error position is initially relative to the
996 : * function body string (as passed in). If possible, we adjust the position
997 : * to reference the original command text; if we can't manage that, we set
998 : * up an "internal query" syntax error instead.
999 : *
1000 : * Returns true if a syntax error was processed, false if not.
1001 : */
1002 : bool
1003 238 : function_parse_error_transpose(const char *prosrc)
1004 : {
1005 : int origerrposition;
1006 : int newerrposition;
1007 :
1008 : /*
1009 : * Nothing to do unless we are dealing with a syntax error that has a
1010 : * cursor position.
1011 : *
1012 : * Some PLs may prefer to report the error position as an internal error
1013 : * to begin with, so check that too.
1014 : */
1015 238 : origerrposition = geterrposition();
1016 238 : if (origerrposition <= 0)
1017 : {
1018 208 : origerrposition = getinternalerrposition();
1019 208 : if (origerrposition <= 0)
1020 36 : return false;
1021 : }
1022 :
1023 : /* We can get the original query text from the active portal (hack...) */
1024 202 : if (ActivePortal && ActivePortal->status == PORTAL_ACTIVE)
1025 202 : {
1026 202 : const char *queryText = ActivePortal->sourceText;
1027 :
1028 : /* Try to locate the prosrc in the original text */
1029 202 : newerrposition = match_prosrc_to_query(prosrc, queryText,
1030 : origerrposition);
1031 : }
1032 : else
1033 : {
1034 : /*
1035 : * Quietly give up if no ActivePortal. This is an unusual situation
1036 : * but it can happen in, e.g., logical replication workers.
1037 : */
1038 0 : newerrposition = -1;
1039 : }
1040 :
1041 202 : if (newerrposition > 0)
1042 : {
1043 : /* Successful, so fix error position to reference original query */
1044 202 : errposition(newerrposition);
1045 : /* Get rid of any report of the error as an "internal query" */
1046 202 : internalerrposition(0);
1047 202 : internalerrquery(NULL);
1048 : }
1049 : else
1050 : {
1051 : /*
1052 : * If unsuccessful, convert the position to an internal position
1053 : * marker and give the function text as the internal query.
1054 : */
1055 0 : errposition(0);
1056 0 : internalerrposition(origerrposition);
1057 0 : internalerrquery(prosrc);
1058 : }
1059 :
1060 202 : return true;
1061 : }
1062 :
1063 : /*
1064 : * Try to locate the string literal containing the function body in the
1065 : * given text of the CREATE FUNCTION or DO command. If successful, return
1066 : * the character (not byte) index within the command corresponding to the
1067 : * given character index within the literal. If not successful, return 0.
1068 : */
1069 : static int
1070 202 : match_prosrc_to_query(const char *prosrc, const char *queryText,
1071 : int cursorpos)
1072 : {
1073 : /*
1074 : * Rather than fully parsing the original command, we just scan the
1075 : * command looking for $prosrc$ or 'prosrc'. This could be fooled (though
1076 : * not in any very probable scenarios), so fail if we find more than one
1077 : * match.
1078 : */
1079 202 : int prosrclen = strlen(prosrc);
1080 202 : int querylen = strlen(queryText);
1081 202 : int matchpos = 0;
1082 : int curpos;
1083 : int newcursorpos;
1084 :
1085 13966 : for (curpos = 0; curpos < querylen - prosrclen; curpos++)
1086 : {
1087 13764 : if (queryText[curpos] == '$' &&
1088 380 : strncmp(prosrc, &queryText[curpos + 1], prosrclen) == 0 &&
1089 190 : queryText[curpos + 1 + prosrclen] == '$')
1090 : {
1091 : /*
1092 : * Found a $foo$ match. Since there are no embedded quoting
1093 : * characters in a dollar-quoted literal, we don't have to do any
1094 : * fancy arithmetic; just offset by the starting position.
1095 : */
1096 190 : if (matchpos)
1097 0 : return 0; /* multiple matches, fail */
1098 190 : matchpos = pg_mbstrlen_with_len(queryText, curpos + 1)
1099 : + cursorpos;
1100 : }
1101 13586 : else if (queryText[curpos] == '\'' &&
1102 12 : match_prosrc_to_literal(prosrc, &queryText[curpos + 1],
1103 : cursorpos, &newcursorpos))
1104 : {
1105 : /*
1106 : * Found a 'foo' match. match_prosrc_to_literal() has adjusted
1107 : * for any quotes or backslashes embedded in the literal.
1108 : */
1109 12 : if (matchpos)
1110 0 : return 0; /* multiple matches, fail */
1111 12 : matchpos = pg_mbstrlen_with_len(queryText, curpos + 1)
1112 12 : + newcursorpos;
1113 : }
1114 : }
1115 :
1116 202 : return matchpos;
1117 : }
1118 :
1119 : /*
1120 : * Try to match the given source text to a single-quoted literal.
1121 : * If successful, adjust newcursorpos to correspond to the character
1122 : * (not byte) index corresponding to cursorpos in the source text.
1123 : *
1124 : * At entry, literal points just past a ' character. We must check for the
1125 : * trailing quote.
1126 : */
1127 : static bool
1128 12 : match_prosrc_to_literal(const char *prosrc, const char *literal,
1129 : int cursorpos, int *newcursorpos)
1130 : {
1131 12 : int newcp = cursorpos;
1132 : int chlen;
1133 :
1134 : /*
1135 : * This implementation handles backslashes and doubled quotes in the
1136 : * string literal. It does not handle the SQL syntax for literals
1137 : * continued across line boundaries.
1138 : *
1139 : * We do the comparison a character at a time, not a byte at a time, so
1140 : * that we can do the correct cursorpos math.
1141 : */
1142 144 : while (*prosrc)
1143 : {
1144 132 : cursorpos--; /* characters left before cursor */
1145 :
1146 : /*
1147 : * Check for backslashes and doubled quotes in the literal; adjust
1148 : * newcp when one is found before the cursor.
1149 : */
1150 132 : if (*literal == '\\')
1151 : {
1152 0 : literal++;
1153 0 : if (cursorpos > 0)
1154 0 : newcp++;
1155 : }
1156 132 : else if (*literal == '\'')
1157 : {
1158 0 : if (literal[1] != '\'')
1159 0 : goto fail;
1160 0 : literal++;
1161 0 : if (cursorpos > 0)
1162 0 : newcp++;
1163 : }
1164 132 : chlen = pg_mblen(prosrc);
1165 132 : if (strncmp(prosrc, literal, chlen) != 0)
1166 0 : goto fail;
1167 132 : prosrc += chlen;
1168 132 : literal += chlen;
1169 : }
1170 :
1171 12 : if (*literal == '\'' && literal[1] != '\'')
1172 : {
1173 : /* success */
1174 12 : *newcursorpos = newcp;
1175 12 : return true;
1176 : }
1177 :
1178 0 : fail:
1179 : /* Must set *newcursorpos to suppress compiler warning */
1180 0 : *newcursorpos = newcp;
1181 0 : return false;
1182 : }
1183 :
1184 : List *
1185 120 : oid_array_to_list(Datum datum)
1186 : {
1187 120 : ArrayType *array = DatumGetArrayTypeP(datum);
1188 : Datum *values;
1189 : int nelems;
1190 : int i;
1191 120 : List *result = NIL;
1192 :
1193 120 : deconstruct_array_builtin(array, OIDOID, &values, NULL, &nelems);
1194 244 : for (i = 0; i < nelems; i++)
1195 124 : result = lappend_oid(result, values[i]);
1196 120 : return result;
1197 : }
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