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pg_proc.c
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1 /*-------------------------------------------------------------------------
2  *
3  * pg_proc.c
4  * routines to support manipulation of the pg_proc relation
5  *
6  * Portions Copyright (c) 1996-2022, 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;
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  */
72 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  char *paramModes = NULL;
105  Oid variadicType = InvalidOid;
106  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  parameterCount = parameterTypes->dim1;
129  if (parameterCount < 0 || parameterCount > FUNC_MAX_ARGS)
130  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",
135  FUNC_MAX_ARGS)));
136  /* note: the above is correct, we do NOT count output arguments */
137 
138  /* Deconstruct array inputs */
139  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  ArrayType *allParamArray = (ArrayType *) DatumGetPointer(allParameterTypes);
147 
148  allParamCount = ARR_DIMS(allParamArray)[0];
149  if (ARR_NDIM(allParamArray) != 1 ||
150  allParamCount <= 0 ||
151  ARR_HASNULL(allParamArray) ||
152  ARR_ELEMTYPE(allParamArray) != OIDOID)
153  elog(ERROR, "allParameterTypes is not a 1-D Oid array");
154  allParams = (Oid *) ARR_DATA_PTR(allParamArray);
155  Assert(allParamCount >= parameterCount);
156  /* we assume caller got the contents right */
157  }
158  else
159  {
160  allParamCount = parameterCount;
161  allParams = parameterTypes->values;
162  }
163 
164  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  ArrayType *modesArray = (ArrayType *) DatumGetPointer(parameterModes);
172 
173  if (ARR_NDIM(modesArray) != 1 ||
174  ARR_DIMS(modesArray)[0] != allParamCount ||
175  ARR_HASNULL(modesArray) ||
176  ARR_ELEMTYPE(modesArray) != CHAROID)
177  elog(ERROR, "parameterModes is not a 1-D char array");
178  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  detailmsg = check_valid_polymorphic_signature(returnType,
186  parameterTypes->values,
187  parameterCount);
188  if (detailmsg)
189  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  detailmsg = check_valid_internal_signature(returnType,
199  parameterTypes->values,
200  parameterCount);
201  if (detailmsg)
202  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  if (allParameterTypes != PointerGetDatum(NULL))
211  {
212  for (i = 0; i < allParamCount; i++)
213  {
214  if (paramModes == NULL ||
215  paramModes[i] == PROARGMODE_IN ||
216  paramModes[i] == PROARGMODE_VARIADIC)
217  continue; /* ignore input-only params */
218 
219  detailmsg = check_valid_polymorphic_signature(allParams[i],
220  parameterTypes->values,
221  parameterCount);
222  if (detailmsg)
223  ereport(ERROR,
224  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
225  errmsg("cannot determine result data type"),
226  errdetail_internal("%s", detailmsg)));
227  detailmsg = check_valid_internal_signature(allParams[i],
228  parameterTypes->values,
229  parameterCount);
230  if (detailmsg)
231  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  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  for (i = 0; i < allParamCount; i++)
247  {
248  switch (paramModes[i])
249  {
250  case PROARGMODE_IN:
251  case PROARGMODE_INOUT:
252  if (OidIsValid(variadicType))
253  elog(ERROR, "variadic parameter must be last");
254  break;
255  case PROARGMODE_OUT:
256  if (OidIsValid(variadicType) && prokind == PROKIND_PROCEDURE)
257  elog(ERROR, "variadic parameter must be last");
258  break;
259  case PROARGMODE_TABLE:
260  /* okay */
261  break;
262  case PROARGMODE_VARIADIC:
263  if (OidIsValid(variadicType))
264  elog(ERROR, "variadic parameter must be last");
265  switch (allParams[i])
266  {
267  case ANYOID:
268  variadicType = ANYOID;
269  break;
270  case ANYARRAYOID:
271  variadicType = ANYELEMENTOID;
272  break;
273  case ANYCOMPATIBLEARRAYOID:
274  variadicType = ANYCOMPATIBLEOID;
275  break;
276  default:
277  variadicType = get_element_type(allParams[i]);
278  if (!OidIsValid(variadicType))
279  elog(ERROR, "variadic parameter is not an array");
280  break;
281  }
282  break;
283  default:
284  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  for (i = 0; i < Natts_pg_proc; ++i)
295  {
296  nulls[i] = false;
297  values[i] = (Datum) 0;
298  replaces[i] = true;
299  }
300 
301  namestrcpy(&procname, procedureName);
302  values[Anum_pg_proc_proname - 1] = NameGetDatum(&procname);
303  values[Anum_pg_proc_pronamespace - 1] = ObjectIdGetDatum(procNamespace);
304  values[Anum_pg_proc_proowner - 1] = ObjectIdGetDatum(proowner);
305  values[Anum_pg_proc_prolang - 1] = ObjectIdGetDatum(languageObjectId);
306  values[Anum_pg_proc_procost - 1] = Float4GetDatum(procost);
307  values[Anum_pg_proc_prorows - 1] = Float4GetDatum(prorows);
308  values[Anum_pg_proc_provariadic - 1] = ObjectIdGetDatum(variadicType);
309  values[Anum_pg_proc_prosupport - 1] = ObjectIdGetDatum(prosupport);
310  values[Anum_pg_proc_prokind - 1] = CharGetDatum(prokind);
311  values[Anum_pg_proc_prosecdef - 1] = BoolGetDatum(security_definer);
312  values[Anum_pg_proc_proleakproof - 1] = BoolGetDatum(isLeakProof);
313  values[Anum_pg_proc_proisstrict - 1] = BoolGetDatum(isStrict);
314  values[Anum_pg_proc_proretset - 1] = BoolGetDatum(returnsSet);
315  values[Anum_pg_proc_provolatile - 1] = CharGetDatum(volatility);
316  values[Anum_pg_proc_proparallel - 1] = CharGetDatum(parallel);
317  values[Anum_pg_proc_pronargs - 1] = UInt16GetDatum(parameterCount);
318  values[Anum_pg_proc_pronargdefaults - 1] = UInt16GetDatum(list_length(parameterDefaults));
319  values[Anum_pg_proc_prorettype - 1] = ObjectIdGetDatum(returnType);
320  values[Anum_pg_proc_proargtypes - 1] = PointerGetDatum(parameterTypes);
321  if (allParameterTypes != PointerGetDatum(NULL))
322  values[Anum_pg_proc_proallargtypes - 1] = allParameterTypes;
323  else
324  nulls[Anum_pg_proc_proallargtypes - 1] = true;
325  if (parameterModes != PointerGetDatum(NULL))
326  values[Anum_pg_proc_proargmodes - 1] = parameterModes;
327  else
328  nulls[Anum_pg_proc_proargmodes - 1] = true;
329  if (parameterNames != PointerGetDatum(NULL))
330  values[Anum_pg_proc_proargnames - 1] = parameterNames;
331  else
332  nulls[Anum_pg_proc_proargnames - 1] = true;
333  if (parameterDefaults != NIL)
334  values[Anum_pg_proc_proargdefaults - 1] = CStringGetTextDatum(nodeToString(parameterDefaults));
335  else
336  nulls[Anum_pg_proc_proargdefaults - 1] = true;
337  if (trftypes != PointerGetDatum(NULL))
338  values[Anum_pg_proc_protrftypes - 1] = trftypes;
339  else
340  nulls[Anum_pg_proc_protrftypes - 1] = true;
341  values[Anum_pg_proc_prosrc - 1] = CStringGetTextDatum(prosrc);
342  if (probin)
343  values[Anum_pg_proc_probin - 1] = CStringGetTextDatum(probin);
344  else
345  nulls[Anum_pg_proc_probin - 1] = true;
346  if (prosqlbody)
347  values[Anum_pg_proc_prosqlbody - 1] = CStringGetTextDatum(nodeToString(prosqlbody));
348  else
349  nulls[Anum_pg_proc_prosqlbody - 1] = true;
350  if (proconfig != PointerGetDatum(NULL))
351  values[Anum_pg_proc_proconfig - 1] = proconfig;
352  else
353  nulls[Anum_pg_proc_proconfig - 1] = true;
354  /* proacl will be determined later */
355 
356  rel = table_open(ProcedureRelationId, RowExclusiveLock);
357  tupDesc = RelationGetDescr(rel);
358 
359  /* Check for pre-existing definition */
361  PointerGetDatum(procedureName),
362  PointerGetDatum(parameterTypes),
363  ObjectIdGetDatum(procNamespace));
364 
365  if (HeapTupleIsValid(oldtup))
366  {
367  /* There is one; okay to replace it? */
368  Form_pg_proc oldproc = (Form_pg_proc) GETSTRUCT(oldtup);
369  Datum proargnames;
370  bool isnull;
371  const char *dropcmd;
372 
373  if (!replace)
374  ereport(ERROR,
375  (errcode(ERRCODE_DUPLICATE_FUNCTION),
376  errmsg("function \"%s\" already exists with same argument types",
377  procedureName)));
378  if (!pg_proc_ownercheck(oldproc->oid, proowner))
380  procedureName);
381 
382  /* Not okay to change routine kind */
383  if (oldproc->prokind != prokind)
384  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  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  if (returnType != oldproc->prorettype ||
410  returnsSet != oldproc->proretset)
411  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  if (returnType == RECORDOID)
430  {
431  TupleDesc olddesc;
432  TupleDesc newdesc;
433 
434  olddesc = build_function_result_tupdesc_t(oldtup);
435  newdesc = build_function_result_tupdesc_d(prokind,
436  allParameterTypes,
437  parameterModes,
438  parameterNames);
439  if (olddesc == NULL && newdesc == NULL)
440  /* ok, both are runtime-defined RECORDs */ ;
441  else if (olddesc == NULL || newdesc == NULL ||
442  !equalTupleDescs(olddesc, newdesc))
443  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  proargnames = SysCacheGetAttr(PROCNAMEARGSNSP, oldtup,
459  Anum_pg_proc_proargnames,
460  &isnull);
461  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  proargmodes = SysCacheGetAttr(PROCNAMEARGSNSP, oldtup,
471  Anum_pg_proc_proargmodes,
472  &isnull);
473  if (isnull)
474  proargmodes = PointerGetDatum(NULL); /* just to be sure */
475 
476  n_old_arg_names = get_func_input_arg_names(proargnames,
477  proargmodes,
478  &old_arg_names);
479  n_new_arg_names = get_func_input_arg_names(parameterNames,
480  parameterModes,
481  &new_arg_names);
482  for (j = 0; j < n_old_arg_names; j++)
483  {
484  if (old_arg_names[j] == NULL)
485  continue;
486  if (j >= n_new_arg_names || new_arg_names[j] == NULL ||
487  strcmp(old_arg_names[j], new_arg_names[j]) != 0)
488  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  if (oldproc->pronargdefaults != 0)
508  {
509  Datum proargdefaults;
510  List *oldDefaults;
511  ListCell *oldlc;
512  ListCell *newlc;
513 
514  if (list_length(parameterDefaults) < oldproc->pronargdefaults)
515  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  proargdefaults = SysCacheGetAttr(PROCNAMEARGSNSP, oldtup,
524  Anum_pg_proc_proargdefaults,
525  &isnull);
526  Assert(!isnull);
527  oldDefaults = castNode(List, stringToNode(TextDatumGetCString(proargdefaults)));
528  Assert(list_length(oldDefaults) == oldproc->pronargdefaults);
529 
530  /* new list can have more defaults than old, advance over 'em */
531  newlc = list_nth_cell(parameterDefaults,
532  list_length(parameterDefaults) -
533  oldproc->pronargdefaults);
534 
535  foreach(oldlc, oldDefaults)
536  {
537  Node *oldDef = (Node *) lfirst(oldlc);
538  Node *newDef = (Node *) lfirst(newlc);
539 
540  if (exprType(oldDef) != exprType(newDef))
541  ereport(ERROR,
542  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
543  errmsg("cannot change data type of existing parameter default value"),
544  /* translator: first %s is DROP FUNCTION or DROP PROCEDURE */
545  errhint("Use %s %s first.",
546  dropcmd,
547  format_procedure(oldproc->oid))));
548  newlc = lnext(parameterDefaults, newlc);
549  }
550  }
551 
552  /*
553  * Do not change existing oid, ownership or permissions, either. Note
554  * dependency-update code below has to agree with this decision.
555  */
556  replaces[Anum_pg_proc_oid - 1] = false;
557  replaces[Anum_pg_proc_proowner - 1] = false;
558  replaces[Anum_pg_proc_proacl - 1] = false;
559 
560  /* Okay, do it... */
561  tup = heap_modify_tuple(oldtup, tupDesc, values, nulls, replaces);
562  CatalogTupleUpdate(rel, &tup->t_self, tup);
563 
564  ReleaseSysCache(oldtup);
565  is_update = true;
566  }
567  else
568  {
569  /* Creating a new procedure */
570  Oid newOid;
571 
572  /* First, get default permissions and set up proacl */
573  proacl = get_user_default_acl(OBJECT_FUNCTION, proowner,
574  procNamespace);
575  if (proacl != NULL)
576  values[Anum_pg_proc_proacl - 1] = PointerGetDatum(proacl);
577  else
578  nulls[Anum_pg_proc_proacl - 1] = true;
579 
580  newOid = GetNewOidWithIndex(rel, ProcedureOidIndexId,
581  Anum_pg_proc_oid);
582  values[Anum_pg_proc_oid - 1] = ObjectIdGetDatum(newOid);
583  tup = heap_form_tuple(tupDesc, values, nulls);
584  CatalogTupleInsert(rel, tup);
585  is_update = false;
586  }
587 
588 
589  retval = ((Form_pg_proc) GETSTRUCT(tup))->oid;
590 
591  /*
592  * Create dependencies for the new function. If we are updating an
593  * existing function, first delete any existing pg_depend entries.
594  * (However, since we are not changing ownership or permissions, the
595  * shared dependencies do *not* need to change, and we leave them alone.)
596  */
597  if (is_update)
598  deleteDependencyRecordsFor(ProcedureRelationId, retval, true);
599 
600  addrs = new_object_addresses();
601 
602  ObjectAddressSet(myself, ProcedureRelationId, retval);
603 
604  /* dependency on namespace */
605  ObjectAddressSet(referenced, NamespaceRelationId, procNamespace);
606  add_exact_object_address(&referenced, addrs);
607 
608  /* dependency on implementation language */
609  ObjectAddressSet(referenced, LanguageRelationId, languageObjectId);
610  add_exact_object_address(&referenced, addrs);
611 
612  /* dependency on return type */
613  ObjectAddressSet(referenced, TypeRelationId, returnType);
614  add_exact_object_address(&referenced, addrs);
615 
616  /* dependency on transform used by return type, if any */
617  if ((trfid = get_transform_oid(returnType, languageObjectId, true)))
618  {
619  ObjectAddressSet(referenced, TransformRelationId, trfid);
620  add_exact_object_address(&referenced, addrs);
621  }
622 
623  /* dependency on parameter types */
624  for (i = 0; i < allParamCount; i++)
625  {
626  ObjectAddressSet(referenced, TypeRelationId, allParams[i]);
627  add_exact_object_address(&referenced, addrs);
628 
629  /* dependency on transform used by parameter type, if any */
630  if ((trfid = get_transform_oid(allParams[i], languageObjectId, true)))
631  {
632  ObjectAddressSet(referenced, TransformRelationId, trfid);
633  add_exact_object_address(&referenced, addrs);
634  }
635  }
636 
637  /* dependency on support function, if any */
638  if (OidIsValid(prosupport))
639  {
640  ObjectAddressSet(referenced, ProcedureRelationId, prosupport);
641  add_exact_object_address(&referenced, addrs);
642  }
643 
645  free_object_addresses(addrs);
646 
647  /* dependency on SQL routine body */
648  if (languageObjectId == SQLlanguageId && prosqlbody)
649  recordDependencyOnExpr(&myself, prosqlbody, NIL, DEPENDENCY_NORMAL);
650 
651  /* dependency on parameter default expressions */
652  if (parameterDefaults)
653  recordDependencyOnExpr(&myself, (Node *) parameterDefaults,
655 
656  /* dependency on owner */
657  if (!is_update)
658  recordDependencyOnOwner(ProcedureRelationId, retval, proowner);
659 
660  /* dependency on any roles mentioned in ACL */
661  if (!is_update)
662  recordDependencyOnNewAcl(ProcedureRelationId, retval, 0,
663  proowner, proacl);
664 
665  /* dependency on extension */
666  recordDependencyOnCurrentExtension(&myself, is_update);
667 
668  heap_freetuple(tup);
669 
670  /* Post creation hook for new function */
671  InvokeObjectPostCreateHook(ProcedureRelationId, retval, 0);
672 
674 
675  /* Verify function body */
676  if (OidIsValid(languageValidator))
677  {
678  ArrayType *set_items = NULL;
679  int save_nestlevel = 0;
680 
681  /* Advance command counter so new tuple can be seen by validator */
683 
684  /*
685  * Set per-function configuration parameters so that the validation is
686  * done with the environment the function expects. However, if
687  * check_function_bodies is off, we don't do this, because that would
688  * create dump ordering hazards that pg_dump doesn't know how to deal
689  * with. (For example, a SET clause might refer to a not-yet-created
690  * text search configuration.) This means that the validator
691  * shouldn't complain about anything that might depend on a GUC
692  * parameter when check_function_bodies is off.
693  */
695  {
696  set_items = (ArrayType *) DatumGetPointer(proconfig);
697  if (set_items) /* Need a new GUC nesting level */
698  {
699  save_nestlevel = NewGUCNestLevel();
700  ProcessGUCArray(set_items,
704  }
705  }
706 
707  OidFunctionCall1(languageValidator, ObjectIdGetDatum(retval));
708 
709  if (set_items)
710  AtEOXact_GUC(true, save_nestlevel);
711  }
712 
713  /* ensure that stats are dropped if transaction aborts */
714  if (!is_update)
715  pgstat_create_function(retval);
716 
717  return myself;
718 }
719 
720 
721 
722 /*
723  * Validator for internal functions
724  *
725  * Check that the given internal function name (the "prosrc" value) is
726  * a known builtin function.
727  */
728 Datum
730 {
731  Oid funcoid = PG_GETARG_OID(0);
732  HeapTuple tuple;
733  bool isnull;
734  Datum tmp;
735  char *prosrc;
736 
737  if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
738  PG_RETURN_VOID();
739 
740  /*
741  * We do not honor check_function_bodies since it's unlikely the function
742  * name will be found later if it isn't there now.
743  */
744 
745  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
746  if (!HeapTupleIsValid(tuple))
747  elog(ERROR, "cache lookup failed for function %u", funcoid);
748 
749  tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_prosrc, &isnull);
750  if (isnull)
751  elog(ERROR, "null prosrc");
752  prosrc = TextDatumGetCString(tmp);
753 
754  if (fmgr_internal_function(prosrc) == InvalidOid)
755  ereport(ERROR,
756  (errcode(ERRCODE_UNDEFINED_FUNCTION),
757  errmsg("there is no built-in function named \"%s\"",
758  prosrc)));
759 
760  ReleaseSysCache(tuple);
761 
762  PG_RETURN_VOID();
763 }
764 
765 
766 
767 /*
768  * Validator for C language functions
769  *
770  * Make sure that the library file exists, is loadable, and contains
771  * the specified link symbol. Also check for a valid function
772  * information record.
773  */
774 Datum
776 {
777  Oid funcoid = PG_GETARG_OID(0);
778  void *libraryhandle;
779  HeapTuple tuple;
780  bool isnull;
781  Datum tmp;
782  char *prosrc;
783  char *probin;
784 
785  if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
786  PG_RETURN_VOID();
787 
788  /*
789  * It'd be most consistent to skip the check if !check_function_bodies,
790  * but the purpose of that switch is to be helpful for pg_dump loading,
791  * and for pg_dump loading it's much better if we *do* check.
792  */
793 
794  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
795  if (!HeapTupleIsValid(tuple))
796  elog(ERROR, "cache lookup failed for function %u", funcoid);
797 
798  tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_prosrc, &isnull);
799  if (isnull)
800  elog(ERROR, "null prosrc for C function %u", funcoid);
801  prosrc = TextDatumGetCString(tmp);
802 
803  tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_probin, &isnull);
804  if (isnull)
805  elog(ERROR, "null probin for C function %u", funcoid);
806  probin = TextDatumGetCString(tmp);
807 
808  (void) load_external_function(probin, prosrc, true, &libraryhandle);
809  (void) fetch_finfo_record(libraryhandle, prosrc);
810 
811  ReleaseSysCache(tuple);
812 
813  PG_RETURN_VOID();
814 }
815 
816 
817 /*
818  * Validator for SQL language functions
819  *
820  * Parse it here in order to be sure that it contains no syntax errors.
821  */
822 Datum
824 {
825  Oid funcoid = PG_GETARG_OID(0);
826  HeapTuple tuple;
827  Form_pg_proc proc;
828  List *raw_parsetree_list;
829  List *querytree_list;
830  ListCell *lc;
831  bool isnull;
832  Datum tmp;
833  char *prosrc;
834  parse_error_callback_arg callback_arg;
835  ErrorContextCallback sqlerrcontext;
836  bool haspolyarg;
837  int i;
838 
839  if (!CheckFunctionValidatorAccess(fcinfo->flinfo->fn_oid, funcoid))
840  PG_RETURN_VOID();
841 
842  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcoid));
843  if (!HeapTupleIsValid(tuple))
844  elog(ERROR, "cache lookup failed for function %u", funcoid);
845  proc = (Form_pg_proc) GETSTRUCT(tuple);
846 
847  /* Disallow pseudotype result */
848  /* except for RECORD, VOID, or polymorphic */
849  if (get_typtype(proc->prorettype) == TYPTYPE_PSEUDO &&
850  proc->prorettype != RECORDOID &&
851  proc->prorettype != VOIDOID &&
852  !IsPolymorphicType(proc->prorettype))
853  ereport(ERROR,
854  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
855  errmsg("SQL functions cannot return type %s",
856  format_type_be(proc->prorettype))));
857 
858  /* Disallow pseudotypes in arguments */
859  /* except for polymorphic */
860  haspolyarg = false;
861  for (i = 0; i < proc->pronargs; i++)
862  {
863  if (get_typtype(proc->proargtypes.values[i]) == TYPTYPE_PSEUDO)
864  {
865  if (IsPolymorphicType(proc->proargtypes.values[i]))
866  haspolyarg = true;
867  else
868  ereport(ERROR,
869  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
870  errmsg("SQL functions cannot have arguments of type %s",
871  format_type_be(proc->proargtypes.values[i]))));
872  }
873  }
874 
875  /* Postpone body checks if !check_function_bodies */
877  {
878  tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_prosrc, &isnull);
879  if (isnull)
880  elog(ERROR, "null prosrc");
881 
882  prosrc = TextDatumGetCString(tmp);
883 
884  /*
885  * Setup error traceback support for ereport().
886  */
887  callback_arg.proname = NameStr(proc->proname);
888  callback_arg.prosrc = prosrc;
889 
891  sqlerrcontext.arg = (void *) &callback_arg;
892  sqlerrcontext.previous = error_context_stack;
893  error_context_stack = &sqlerrcontext;
894 
895  /* If we have prosqlbody, pay attention to that not prosrc */
896  tmp = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_prosqlbody, &isnull);
897  if (!isnull)
898  {
899  Node *n;
900  List *stored_query_list;
901 
903  if (IsA(n, List))
904  stored_query_list = linitial(castNode(List, n));
905  else
906  stored_query_list = list_make1(n);
907 
908  querytree_list = NIL;
909  foreach(lc, stored_query_list)
910  {
911  Query *parsetree = lfirst_node(Query, lc);
912  List *querytree_sublist;
913 
914  /*
915  * Typically, we'd have acquired locks already while parsing
916  * the body of the CREATE FUNCTION command. However, a
917  * validator function cannot assume that it's only called in
918  * that context.
919  */
920  AcquireRewriteLocks(parsetree, true, false);
921  querytree_sublist = pg_rewrite_query(parsetree);
922  querytree_list = lappend(querytree_list, querytree_sublist);
923  }
924  }
925  else
926  {
927  /*
928  * We can't do full prechecking of the function definition if
929  * there are any polymorphic input types, because actual datatypes
930  * of expression results will be unresolvable. The check will be
931  * done at runtime instead.
932  *
933  * We can run the text through the raw parser though; this will at
934  * least catch silly syntactic errors.
935  */
936  raw_parsetree_list = pg_parse_query(prosrc);
937  querytree_list = NIL;
938 
939  if (!haspolyarg)
940  {
941  /*
942  * OK to do full precheck: analyze and rewrite the queries,
943  * then verify the result type.
944  */
946 
947  /* But first, set up parameter information */
948  pinfo = prepare_sql_fn_parse_info(tuple, NULL, InvalidOid);
949 
950  foreach(lc, raw_parsetree_list)
951  {
952  RawStmt *parsetree = lfirst_node(RawStmt, lc);
953  List *querytree_sublist;
954 
955  querytree_sublist = pg_analyze_and_rewrite_withcb(parsetree,
956  prosrc,
958  pinfo,
959  NULL);
960  querytree_list = lappend(querytree_list,
961  querytree_sublist);
962  }
963  }
964  }
965 
966  if (!haspolyarg)
967  {
968  Oid rettype;
969  TupleDesc rettupdesc;
970 
971  check_sql_fn_statements(querytree_list);
972 
973  (void) get_func_result_type(funcoid, &rettype, &rettupdesc);
974 
975  (void) check_sql_fn_retval(querytree_list,
976  rettype, rettupdesc,
977  false, NULL);
978  }
979 
980  error_context_stack = sqlerrcontext.previous;
981  }
982 
983  ReleaseSysCache(tuple);
984 
985  PG_RETURN_VOID();
986 }
987 
988 /*
989  * Error context callback for handling errors in SQL function definitions
990  */
991 static void
993 {
995 
996  /* See if it's a syntax error; if so, transpose to CREATE FUNCTION */
997  if (!function_parse_error_transpose(callback_arg->prosrc))
998  {
999  /* If it's not a syntax error, push info onto context stack */
1000  errcontext("SQL function \"%s\"", callback_arg->proname);
1001  }
1002 }
1003 
1004 /*
1005  * Adjust a syntax error occurring inside the function body of a CREATE
1006  * FUNCTION or DO command. This can be used by any function validator or
1007  * anonymous-block handler, not only for SQL-language functions.
1008  * It is assumed that the syntax error position is initially relative to the
1009  * function body string (as passed in). If possible, we adjust the position
1010  * to reference the original command text; if we can't manage that, we set
1011  * up an "internal query" syntax error instead.
1012  *
1013  * Returns true if a syntax error was processed, false if not.
1014  */
1015 bool
1017 {
1018  int origerrposition;
1019  int newerrposition;
1020  const char *queryText;
1021 
1022  /*
1023  * Nothing to do unless we are dealing with a syntax error that has a
1024  * cursor position.
1025  *
1026  * Some PLs may prefer to report the error position as an internal error
1027  * to begin with, so check that too.
1028  */
1029  origerrposition = geterrposition();
1030  if (origerrposition <= 0)
1031  {
1032  origerrposition = getinternalerrposition();
1033  if (origerrposition <= 0)
1034  return false;
1035  }
1036 
1037  /* We can get the original query text from the active portal (hack...) */
1039  queryText = ActivePortal->sourceText;
1040 
1041  /* Try to locate the prosrc in the original text */
1042  newerrposition = match_prosrc_to_query(prosrc, queryText, origerrposition);
1043 
1044  if (newerrposition > 0)
1045  {
1046  /* Successful, so fix error position to reference original query */
1047  errposition(newerrposition);
1048  /* Get rid of any report of the error as an "internal query" */
1050  internalerrquery(NULL);
1051  }
1052  else
1053  {
1054  /*
1055  * If unsuccessful, convert the position to an internal position
1056  * marker and give the function text as the internal query.
1057  */
1058  errposition(0);
1059  internalerrposition(origerrposition);
1060  internalerrquery(prosrc);
1061  }
1062 
1063  return true;
1064 }
1065 
1066 /*
1067  * Try to locate the string literal containing the function body in the
1068  * given text of the CREATE FUNCTION or DO command. If successful, return
1069  * the character (not byte) index within the command corresponding to the
1070  * given character index within the literal. If not successful, return 0.
1071  */
1072 static int
1073 match_prosrc_to_query(const char *prosrc, const char *queryText,
1074  int cursorpos)
1075 {
1076  /*
1077  * Rather than fully parsing the original command, we just scan the
1078  * command looking for $prosrc$ or 'prosrc'. This could be fooled (though
1079  * not in any very probable scenarios), so fail if we find more than one
1080  * match.
1081  */
1082  int prosrclen = strlen(prosrc);
1083  int querylen = strlen(queryText);
1084  int matchpos = 0;
1085  int curpos;
1086  int newcursorpos;
1087 
1088  for (curpos = 0; curpos < querylen - prosrclen; curpos++)
1089  {
1090  if (queryText[curpos] == '$' &&
1091  strncmp(prosrc, &queryText[curpos + 1], prosrclen) == 0 &&
1092  queryText[curpos + 1 + prosrclen] == '$')
1093  {
1094  /*
1095  * Found a $foo$ match. Since there are no embedded quoting
1096  * characters in a dollar-quoted literal, we don't have to do any
1097  * fancy arithmetic; just offset by the starting position.
1098  */
1099  if (matchpos)
1100  return 0; /* multiple matches, fail */
1101  matchpos = pg_mbstrlen_with_len(queryText, curpos + 1)
1102  + cursorpos;
1103  }
1104  else if (queryText[curpos] == '\'' &&
1105  match_prosrc_to_literal(prosrc, &queryText[curpos + 1],
1106  cursorpos, &newcursorpos))
1107  {
1108  /*
1109  * Found a 'foo' match. match_prosrc_to_literal() has adjusted
1110  * for any quotes or backslashes embedded in the literal.
1111  */
1112  if (matchpos)
1113  return 0; /* multiple matches, fail */
1114  matchpos = pg_mbstrlen_with_len(queryText, curpos + 1)
1115  + newcursorpos;
1116  }
1117  }
1118 
1119  return matchpos;
1120 }
1121 
1122 /*
1123  * Try to match the given source text to a single-quoted literal.
1124  * If successful, adjust newcursorpos to correspond to the character
1125  * (not byte) index corresponding to cursorpos in the source text.
1126  *
1127  * At entry, literal points just past a ' character. We must check for the
1128  * trailing quote.
1129  */
1130 static bool
1131 match_prosrc_to_literal(const char *prosrc, const char *literal,
1132  int cursorpos, int *newcursorpos)
1133 {
1134  int newcp = cursorpos;
1135  int chlen;
1136 
1137  /*
1138  * This implementation handles backslashes and doubled quotes in the
1139  * string literal. It does not handle the SQL syntax for literals
1140  * continued across line boundaries.
1141  *
1142  * We do the comparison a character at a time, not a byte at a time, so
1143  * that we can do the correct cursorpos math.
1144  */
1145  while (*prosrc)
1146  {
1147  cursorpos--; /* characters left before cursor */
1148 
1149  /*
1150  * Check for backslashes and doubled quotes in the literal; adjust
1151  * newcp when one is found before the cursor.
1152  */
1153  if (*literal == '\\')
1154  {
1155  literal++;
1156  if (cursorpos > 0)
1157  newcp++;
1158  }
1159  else if (*literal == '\'')
1160  {
1161  if (literal[1] != '\'')
1162  goto fail;
1163  literal++;
1164  if (cursorpos > 0)
1165  newcp++;
1166  }
1167  chlen = pg_mblen(prosrc);
1168  if (strncmp(prosrc, literal, chlen) != 0)
1169  goto fail;
1170  prosrc += chlen;
1171  literal += chlen;
1172  }
1173 
1174  if (*literal == '\'' && literal[1] != '\'')
1175  {
1176  /* success */
1177  *newcursorpos = newcp;
1178  return true;
1179  }
1180 
1181 fail:
1182  /* Must set *newcursorpos to suppress compiler warning */
1183  *newcursorpos = newcp;
1184  return false;
1185 }
1186 
1187 List *
1189 {
1190  ArrayType *array = DatumGetArrayTypeP(datum);
1191  Datum *values;
1192  int nelems;
1193  int i;
1194  List *result = NIL;
1195 
1196  deconstruct_array(array,
1197  OIDOID,
1198  sizeof(Oid), true, TYPALIGN_INT,
1199  &values, NULL, &nelems);
1200  for (i = 0; i < nelems; i++)
1201  result = lappend_oid(result, values[i]);
1202  return result;
1203 }
@ ACLCHECK_NOT_OWNER
Definition: acl.h:184
void recordDependencyOnNewAcl(Oid classId, Oid objectId, int32 objsubId, Oid ownerId, Acl *acl)
Definition: aclchk.c:5950
bool pg_proc_ownercheck(Oid proc_oid, Oid roleid)
Definition: aclchk.c:5249
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3512
Acl * get_user_default_acl(ObjectType objtype, Oid ownerId, Oid nsp_oid)
Definition: aclchk.c:5874
#define ARR_NDIM(a)
Definition: array.h:283
#define ARR_DATA_PTR(a)
Definition: array.h:315
#define DatumGetArrayTypeP(X)
Definition: array.h:254
#define ARR_ELEMTYPE(a)
Definition: array.h:285
#define ARR_DIMS(a)
Definition: array.h:287
#define ARR_HASNULL(a)
Definition: array.h:284
void deconstruct_array(ArrayType *array, Oid elmtype, int elmlen, bool elmbyval, char elmalign, Datum **elemsp, bool **nullsp, int *nelemsp)
Definition: arrayfuncs.c:3491
static Datum values[MAXATTR]
Definition: bootstrap.c:156
#define CStringGetTextDatum(s)
Definition: builtins.h:85
#define TextDatumGetCString(d)
Definition: builtins.h:86
#define NameStr(name)
Definition: c.h:681
#define PointerIsValid(pointer)
Definition: c.h:698
float float4
Definition: c.h:564
#define OidIsValid(objectId)
Definition: c.h:710
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:391
void record_object_address_dependencies(const ObjectAddress *depender, ObjectAddresses *referenced, DependencyType behavior)
Definition: dependency.c:2711
void recordDependencyOnExpr(const ObjectAddress *depender, Node *expr, List *rtable, DependencyType behavior)
Definition: dependency.c:1588
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2447
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2502
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2742
@ DEPENDENCY_NORMAL
Definition: dependency.h:33
void * load_external_function(const char *filename, const char *funcname, bool signalNotFound, void **filehandle)
Definition: dfmgr.c:105
int getinternalerrposition(void)
Definition: elog.c:1429
int errmsg_plural(const char *fmt_singular, const char *fmt_plural, unsigned long n,...)
Definition: elog.c:1014
int internalerrquery(const char *query)
Definition: elog.c:1316
int internalerrposition(int cursorpos)
Definition: elog.c:1296
int errdetail_internal(const char *fmt,...)
Definition: elog.c:1064
int errdetail(const char *fmt,...)
Definition: elog.c:1037
ErrorContextCallback * error_context_stack
Definition: elog.c:93
int errhint(const char *fmt,...)
Definition: elog.c:1151
int geterrposition(void)
Definition: elog.c:1412
int errcode(int sqlerrcode)
Definition: elog.c:693
int errmsg(const char *fmt,...)
Definition: elog.c:904
int errposition(int cursorpos)
Definition: elog.c:1280
#define errcontext
Definition: elog.h:190
#define ERROR
Definition: elog.h:33
#define elog(elevel,...)
Definition: elog.h:218
#define ereport(elevel,...)
Definition: elog.h:143
Oid fmgr_internal_function(const char *proname)
Definition: fmgr.c:609
bool CheckFunctionValidatorAccess(Oid validatorOid, Oid functionOid)
Definition: fmgr.c:2021
const Pg_finfo_record * fetch_finfo_record(void *filehandle, const char *funcname)
Definition: fmgr.c:469
#define PG_RETURN_VOID()
Definition: fmgr.h:349
#define OidFunctionCall1(functionId, arg1)
Definition: fmgr.h:669
#define PG_GETARG_OID(n)
Definition: fmgr.h:275
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
char * format_type_be(Oid type_oid)
Definition: format_type.c:343
TupleDesc build_function_result_tupdesc_t(HeapTuple procTuple)
Definition: funcapi.c:1671
TupleDesc build_function_result_tupdesc_d(char prokind, Datum proallargtypes, Datum proargmodes, Datum proargnames)
Definition: funcapi.c:1721
int get_func_input_arg_names(Datum proargnames, Datum proargmodes, char ***arg_names)
Definition: funcapi.c:1481
TypeFuncClass get_func_result_type(Oid functionId, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:369
Oid get_transform_oid(Oid type_id, Oid lang_id, bool missing_ok)
bool check_sql_fn_retval(List *queryTreeLists, Oid rettype, TupleDesc rettupdesc, bool insertDroppedCols, List **resultTargetList)
Definition: functions.c:1599
void check_sql_fn_statements(List *queryTreeLists)
Definition: functions.c:1524
void sql_fn_parser_setup(struct ParseState *pstate, SQLFunctionParseInfoPtr pinfo)
Definition: functions.c:265
SQLFunctionParseInfoPtr prepare_sql_fn_parse_info(HeapTuple procedureTuple, Node *call_expr, Oid inputCollation)
Definition: functions.c:176
bool check_function_bodies
Definition: guc.c:626
int NewGUCNestLevel(void)
Definition: guc.c:6467
void ProcessGUCArray(ArrayType *array, GucContext context, GucSource source, GucAction action)
Definition: guc.c:11373
void AtEOXact_GUC(bool isCommit, int nestLevel)
Definition: guc.c:6481
@ GUC_ACTION_SAVE
Definition: guc.h:196
@ PGC_S_SESSION
Definition: guc.h:119
@ PGC_SUSET
Definition: guc.h:75
@ PGC_USERSET
Definition: guc.h:76
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define GETSTRUCT(TUP)
Definition: htup_details.h:649
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221
int j
Definition: isn.c:74
int i
Definition: isn.c:73
Assert(fmt[strlen(fmt) - 1] !='\n')
List * lappend(List *list, void *datum)
Definition: list.c:336
List * lappend_oid(List *list, Oid datum)
Definition: list.c:372
#define RowExclusiveLock
Definition: lockdefs.h:38
Oid get_element_type(Oid typid)
Definition: lsyscache.c:2716
char get_typtype(Oid typid)
Definition: lsyscache.c:2586
int pg_mbstrlen_with_len(const char *mbstr, int limit)
Definition: mbutils.c:1000
int pg_mblen(const char *mbstr)
Definition: mbutils.c:966
void namestrcpy(Name name, const char *str)
Definition: name.c:233
Oid exprType(const Node *expr)
Definition: nodeFuncs.c:41
#define IsA(nodeptr, _type_)
Definition: nodes.h:624
#define castNode(_type_, nodeptr)
Definition: nodes.h:642
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:171
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
char * nodeToString(const void *obj)
Definition: outfuncs.c:4785
void(* ParserSetupHook)(struct ParseState *pstate, void *arg)
Definition: params.h:108
char * check_valid_internal_signature(Oid ret_type, const Oid *declared_arg_types, int nargs)
char * check_valid_polymorphic_signature(Oid ret_type, const Oid *declared_arg_types, int nargs)
@ OBJECT_FUNCTION
Definition: parsenodes.h:2153
void * arg
#define FUNC_MAX_ARGS
long deleteDependencyRecordsFor(Oid classId, Oid objectId, bool skipExtensionDeps)
Definition: pg_depend.c:243
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:191
#define lfirst(lc)
Definition: pg_list.h:169
#define lfirst_node(type, lc)
Definition: pg_list.h:172
static int list_length(const List *l)
Definition: pg_list.h:149
#define NIL
Definition: pg_list.h:65
#define list_make1(x1)
Definition: pg_list.h:206
static ListCell * list_nth_cell(const List *list, int n)
Definition: pg_list.h:256
#define linitial(l)
Definition: pg_list.h:174
static ListCell * lnext(const List *l, const ListCell *c)
Definition: pg_list.h:322
static void sql_function_parse_error_callback(void *arg)
Definition: pg_proc.c:992
Datum fmgr_internal_validator(PG_FUNCTION_ARGS)
Definition: pg_proc.c:729
Datum fmgr_c_validator(PG_FUNCTION_ARGS)
Definition: pg_proc.c:775
static bool match_prosrc_to_literal(const char *prosrc, const char *literal, int cursorpos, int *newcursorpos)
Definition: pg_proc.c:1131
List * oid_array_to_list(Datum datum)
Definition: pg_proc.c:1188
bool function_parse_error_transpose(const char *prosrc)
Definition: pg_proc.c:1016
ObjectAddress ProcedureCreate(const char *procedureName, Oid procNamespace, bool replace, bool returnsSet, Oid returnType, Oid proowner, Oid languageObjectId, Oid languageValidator, const char *prosrc, const char *probin, Node *prosqlbody, char prokind, bool security_definer, bool isLeakProof, bool isStrict, char volatility, char parallel, oidvector *parameterTypes, Datum allParameterTypes, Datum parameterModes, Datum parameterNames, List *parameterDefaults, Datum trftypes, Datum proconfig, Oid prosupport, float4 procost, float4 prorows)
Definition: pg_proc.c:72
Datum fmgr_sql_validator(PG_FUNCTION_ARGS)
Definition: pg_proc.c:823
static int match_prosrc_to_query(const char *prosrc, const char *queryText, int cursorpos)
Definition: pg_proc.c:1073
FormData_pg_proc * Form_pg_proc
Definition: pg_proc.h:136
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:164
void pgstat_create_function(Oid proid)
@ PORTAL_ACTIVE
Definition: portal.h:108
List * pg_parse_query(const char *query_string)
Definition: postgres.c:592
List * pg_analyze_and_rewrite_withcb(RawStmt *parsetree, const char *query_string, ParserSetupHook parserSetup, void *parserSetupArg, QueryEnvironment *queryEnv)
Definition: postgres.c:733
List * pg_rewrite_query(Query *query)
Definition: postgres.c:773
static Datum Float4GetDatum(float4 X)
Definition: postgres.h:725
uintptr_t Datum
Definition: postgres.h:411
#define DatumGetPointer(X)
Definition: postgres.h:593
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define BoolGetDatum(X)
Definition: postgres.h:446
#define NameGetDatum(X)
Definition: postgres.h:639
#define UInt16GetDatum(X)
Definition: postgres.h:509
#define CharGetDatum(X)
Definition: postgres.h:460
#define PointerGetDatum(X)
Definition: postgres.h:600
#define InvalidOid
Definition: postgres_ext.h:36
unsigned int Oid
Definition: postgres_ext.h:31
Portal ActivePortal
Definition: pquery.c:35
void * stringToNode(const char *str)
Definition: read.c:89
char * format_procedure(Oid procedure_oid)
Definition: regproc.c:323
#define RelationGetDescr(relation)
Definition: rel.h:515
void AcquireRewriteLocks(Query *parsetree, bool forExecute, bool forUpdatePushedDown)
struct ErrorContextCallback * previous
Definition: elog.h:232
void(* callback)(void *arg)
Definition: elog.h:233
ItemPointerData t_self
Definition: htup.h:65
Definition: pg_list.h:51
Definition: nodes.h:574
const char * sourceText
Definition: portal.h:136
PortalStatus status
Definition: portal.h:151
Definition: c.h:676
Definition: c.h:661
int dim1
Definition: c.h:666
Oid values[FLEXIBLE_ARRAY_MEMBER]
Definition: c.h:668
bool superuser(void)
Definition: superuser.c:46
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1221
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1173
HeapTuple SearchSysCache3(int cacheId, Datum key1, Datum key2, Datum key3)
Definition: syscache.c:1195
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1434
@ PROCOID
Definition: syscache.h:79
@ PROCNAMEARGSNSP
Definition: syscache.h:78
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
bool equalTupleDescs(TupleDesc tupdesc1, TupleDesc tupdesc2)
Definition: tupdesc.c:402
void CommandCounterIncrement(void)
Definition: xact.c:1074