PostgreSQL Source Code  git master
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros
pg_operator_fn.h File Reference
Include dependency graph for pg_operator_fn.h:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions

ObjectAddress OperatorCreate (const char *operatorName, Oid operatorNamespace, Oid leftTypeId, Oid rightTypeId, Oid procedureId, List *commutatorName, List *negatorName, Oid restrictionId, Oid joinId, bool canMerge, bool canHash)
 
ObjectAddress makeOperatorDependencies (HeapTuple tuple, bool isUpdate)
 
void OperatorUpd (Oid baseId, Oid commId, Oid negId, bool isDelete)
 

Function Documentation

ObjectAddress makeOperatorDependencies ( HeapTuple  tuple,
bool  isUpdate 
)

Definition at line 764 of file pg_operator.c.

References ObjectAddress::classId, deleteDependencyRecordsFor(), deleteSharedDependencyRecordsFor(), DEPENDENCY_NORMAL, GETSTRUCT, HeapTupleGetOid, NamespaceRelationId, ObjectAddress::objectId, ObjectAddress::objectSubId, OidIsValid, oper(), OperatorRelationId, ProcedureRelationId, recordDependencyOn(), recordDependencyOnCurrentExtension(), recordDependencyOnOwner(), and TypeRelationId.

Referenced by AlterOperator(), OperatorCreate(), and OperatorShellMake().

765 {
767  ObjectAddress myself,
768  referenced;
769 
770  myself.classId = OperatorRelationId;
771  myself.objectId = HeapTupleGetOid(tuple);
772  myself.objectSubId = 0;
773 
774  /*
775  * If we are updating the operator, delete any existing entries, except
776  * for extension membership which should remain the same.
777  */
778  if (isUpdate)
779  {
780  deleteDependencyRecordsFor(myself.classId, myself.objectId, true);
782  }
783 
784  /* Dependency on namespace */
785  if (OidIsValid(oper->oprnamespace))
786  {
787  referenced.classId = NamespaceRelationId;
788  referenced.objectId = oper->oprnamespace;
789  referenced.objectSubId = 0;
790  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
791  }
792 
793  /* Dependency on left type */
794  if (OidIsValid(oper->oprleft))
795  {
796  referenced.classId = TypeRelationId;
797  referenced.objectId = oper->oprleft;
798  referenced.objectSubId = 0;
799  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
800  }
801 
802  /* Dependency on right type */
803  if (OidIsValid(oper->oprright))
804  {
805  referenced.classId = TypeRelationId;
806  referenced.objectId = oper->oprright;
807  referenced.objectSubId = 0;
808  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
809  }
810 
811  /* Dependency on result type */
812  if (OidIsValid(oper->oprresult))
813  {
814  referenced.classId = TypeRelationId;
815  referenced.objectId = oper->oprresult;
816  referenced.objectSubId = 0;
817  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
818  }
819 
820  /*
821  * NOTE: we do not consider the operator to depend on the associated
822  * operators oprcom and oprnegate. We would not want to delete this
823  * operator if those go away, but only reset the link fields; which is not
824  * a function that the dependency code can presently handle. (Something
825  * could perhaps be done with objectSubId though.) For now, it's okay to
826  * let those links dangle if a referenced operator is removed.
827  */
828 
829  /* Dependency on implementation function */
830  if (OidIsValid(oper->oprcode))
831  {
832  referenced.classId = ProcedureRelationId;
833  referenced.objectId = oper->oprcode;
834  referenced.objectSubId = 0;
835  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
836  }
837 
838  /* Dependency on restriction selectivity function */
839  if (OidIsValid(oper->oprrest))
840  {
841  referenced.classId = ProcedureRelationId;
842  referenced.objectId = oper->oprrest;
843  referenced.objectSubId = 0;
844  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
845  }
846 
847  /* Dependency on join selectivity function */
848  if (OidIsValid(oper->oprjoin))
849  {
850  referenced.classId = ProcedureRelationId;
851  referenced.objectId = oper->oprjoin;
852  referenced.objectSubId = 0;
853  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
854  }
855 
856  /* Dependency on owner */
858  oper->oprowner);
859 
860  /* Dependency on extension */
861  recordDependencyOnCurrentExtension(&myself, true);
862 
863  return myself;
864 }
#define NamespaceRelationId
Definition: pg_namespace.h:34
#define OperatorRelationId
Definition: pg_operator.h:32
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define ProcedureRelationId
Definition: pg_proc.h:33
long deleteDependencyRecordsFor(Oid classId, Oid objectId, bool skipExtensionDeps)
Definition: pg_depend.c:191
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:159
#define TypeRelationId
Definition: pg_type.h:34
#define OidIsValid(objectId)
Definition: c.h:538
void deleteSharedDependencyRecordsFor(Oid classId, Oid objectId, int32 objectSubId)
Definition: pg_shdepend.c:823
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:139
FormData_pg_operator* Form_pg_operator
Definition: pg_operator.h:57
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
Operator oper(ParseState *pstate, List *opname, Oid ltypeId, Oid rtypeId, bool noError, int location)
Definition: parse_oper.c:377
ObjectAddress OperatorCreate ( const char *  operatorName,
Oid  operatorNamespace,
Oid  leftTypeId,
Oid  rightTypeId,
Oid  procedureId,
List commutatorName,
List negatorName,
Oid  restrictionId,
Oid  joinId,
bool  canMerge,
bool  canHash 
)

Definition at line 324 of file pg_operator.c.

References ACL_KIND_OPER, aclcheck_error(), ACLCHECK_NOT_OWNER, Anum_pg_operator_oprcanhash, Anum_pg_operator_oprcanmerge, Anum_pg_operator_oprcode, Anum_pg_operator_oprcom, Anum_pg_operator_oprjoin, Anum_pg_operator_oprkind, Anum_pg_operator_oprleft, Anum_pg_operator_oprname, Anum_pg_operator_oprnamespace, Anum_pg_operator_oprnegate, Anum_pg_operator_oprowner, Anum_pg_operator_oprrest, Anum_pg_operator_oprresult, Anum_pg_operator_oprright, BoolGetDatum, BOOLOID, CatalogTupleInsert(), CatalogTupleUpdate(), CharGetDatum, elog, ereport, errcode(), errmsg(), ERROR, get_func_rettype(), get_other_operator(), GetUserId(), heap_close, heap_form_tuple(), heap_modify_tuple(), heap_open(), HeapTupleIsValid, i, InvalidOid, InvokeObjectPostCreateHook, makeOperatorDependencies(), NameGetDatum, NameListToString(), namestrcpy(), Natts_pg_operator, NULL, ObjectIdGetDatum, OidIsValid, OperatorGet(), OperatorRelationId, OperatorUpd(), OPEROID, pg_oper_ownercheck(), RelationGetDescr, RowExclusiveLock, SearchSysCacheCopy1, HeapTupleData::t_self, validOperatorName(), and values.

Referenced by DefineOperator().

335 {
336  Relation pg_operator_desc;
337  HeapTuple tup;
338  bool isUpdate;
339  bool nulls[Natts_pg_operator];
340  bool replaces[Natts_pg_operator];
342  Oid operatorObjectId;
343  bool operatorAlreadyDefined;
344  Oid operResultType;
345  Oid commutatorId,
346  negatorId;
347  bool selfCommutator = false;
348  NameData oname;
349  int i;
350  ObjectAddress address;
351 
352  /*
353  * Sanity checks
354  */
355  if (!validOperatorName(operatorName))
356  ereport(ERROR,
357  (errcode(ERRCODE_INVALID_NAME),
358  errmsg("\"%s\" is not a valid operator name",
359  operatorName)));
360 
361  if (!(OidIsValid(leftTypeId) && OidIsValid(rightTypeId)))
362  {
363  /* If it's not a binary op, these things mustn't be set: */
364  if (commutatorName)
365  ereport(ERROR,
366  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
367  errmsg("only binary operators can have commutators")));
368  if (OidIsValid(joinId))
369  ereport(ERROR,
370  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
371  errmsg("only binary operators can have join selectivity")));
372  if (canMerge)
373  ereport(ERROR,
374  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
375  errmsg("only binary operators can merge join")));
376  if (canHash)
377  ereport(ERROR,
378  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
379  errmsg("only binary operators can hash")));
380  }
381 
382  operResultType = get_func_rettype(procedureId);
383 
384  if (operResultType != BOOLOID)
385  {
386  /* If it's not a boolean op, these things mustn't be set: */
387  if (negatorName)
388  ereport(ERROR,
389  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
390  errmsg("only boolean operators can have negators")));
391  if (OidIsValid(restrictionId))
392  ereport(ERROR,
393  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
394  errmsg("only boolean operators can have restriction selectivity")));
395  if (OidIsValid(joinId))
396  ereport(ERROR,
397  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
398  errmsg("only boolean operators can have join selectivity")));
399  if (canMerge)
400  ereport(ERROR,
401  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
402  errmsg("only boolean operators can merge join")));
403  if (canHash)
404  ereport(ERROR,
405  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
406  errmsg("only boolean operators can hash")));
407  }
408 
409  operatorObjectId = OperatorGet(operatorName,
410  operatorNamespace,
411  leftTypeId,
412  rightTypeId,
413  &operatorAlreadyDefined);
414 
415  if (operatorAlreadyDefined)
416  ereport(ERROR,
417  (errcode(ERRCODE_DUPLICATE_FUNCTION),
418  errmsg("operator %s already exists",
419  operatorName)));
420 
421  /*
422  * At this point, if operatorObjectId is not InvalidOid then we are
423  * filling in a previously-created shell. Insist that the user own any
424  * such shell.
425  */
426  if (OidIsValid(operatorObjectId) &&
427  !pg_oper_ownercheck(operatorObjectId, GetUserId()))
429  operatorName);
430 
431  /*
432  * Set up the other operators. If they do not currently exist, create
433  * shells in order to get ObjectId's.
434  */
435 
436  if (commutatorName)
437  {
438  /* commutator has reversed arg types */
439  commutatorId = get_other_operator(commutatorName,
440  rightTypeId, leftTypeId,
441  operatorName, operatorNamespace,
442  leftTypeId, rightTypeId,
443  true);
444 
445  /* Permission check: must own other operator */
446  if (OidIsValid(commutatorId) &&
447  !pg_oper_ownercheck(commutatorId, GetUserId()))
449  NameListToString(commutatorName));
450 
451  /*
452  * self-linkage to this operator; will fix below. Note that only
453  * self-linkage for commutation makes sense.
454  */
455  if (!OidIsValid(commutatorId))
456  selfCommutator = true;
457  }
458  else
459  commutatorId = InvalidOid;
460 
461  if (negatorName)
462  {
463  /* negator has same arg types */
464  negatorId = get_other_operator(negatorName,
465  leftTypeId, rightTypeId,
466  operatorName, operatorNamespace,
467  leftTypeId, rightTypeId,
468  false);
469 
470  /* Permission check: must own other operator */
471  if (OidIsValid(negatorId) &&
472  !pg_oper_ownercheck(negatorId, GetUserId()))
474  NameListToString(negatorName));
475  }
476  else
477  negatorId = InvalidOid;
478 
479  /*
480  * set up values in the operator tuple
481  */
482 
483  for (i = 0; i < Natts_pg_operator; ++i)
484  {
485  values[i] = (Datum) NULL;
486  replaces[i] = true;
487  nulls[i] = false;
488  }
489 
490  namestrcpy(&oname, operatorName);
491  values[Anum_pg_operator_oprname - 1] = NameGetDatum(&oname);
492  values[Anum_pg_operator_oprnamespace - 1] = ObjectIdGetDatum(operatorNamespace);
494  values[Anum_pg_operator_oprkind - 1] = CharGetDatum(leftTypeId ? (rightTypeId ? 'b' : 'r') : 'l');
495  values[Anum_pg_operator_oprcanmerge - 1] = BoolGetDatum(canMerge);
496  values[Anum_pg_operator_oprcanhash - 1] = BoolGetDatum(canHash);
497  values[Anum_pg_operator_oprleft - 1] = ObjectIdGetDatum(leftTypeId);
498  values[Anum_pg_operator_oprright - 1] = ObjectIdGetDatum(rightTypeId);
499  values[Anum_pg_operator_oprresult - 1] = ObjectIdGetDatum(operResultType);
500  values[Anum_pg_operator_oprcom - 1] = ObjectIdGetDatum(commutatorId);
501  values[Anum_pg_operator_oprnegate - 1] = ObjectIdGetDatum(negatorId);
502  values[Anum_pg_operator_oprcode - 1] = ObjectIdGetDatum(procedureId);
503  values[Anum_pg_operator_oprrest - 1] = ObjectIdGetDatum(restrictionId);
504  values[Anum_pg_operator_oprjoin - 1] = ObjectIdGetDatum(joinId);
505 
506  pg_operator_desc = heap_open(OperatorRelationId, RowExclusiveLock);
507 
508  /*
509  * If we are replacing an operator shell, update; else insert
510  */
511  if (operatorObjectId)
512  {
513  isUpdate = true;
514 
516  ObjectIdGetDatum(operatorObjectId));
517  if (!HeapTupleIsValid(tup))
518  elog(ERROR, "cache lookup failed for operator %u",
519  operatorObjectId);
520 
521  tup = heap_modify_tuple(tup,
522  RelationGetDescr(pg_operator_desc),
523  values,
524  nulls,
525  replaces);
526 
527  CatalogTupleUpdate(pg_operator_desc, &tup->t_self, tup);
528  }
529  else
530  {
531  isUpdate = false;
532 
533  tup = heap_form_tuple(RelationGetDescr(pg_operator_desc),
534  values, nulls);
535 
536  operatorObjectId = CatalogTupleInsert(pg_operator_desc, tup);
537  }
538 
539  /* Add dependencies for the entry */
540  address = makeOperatorDependencies(tup, isUpdate);
541 
542  /* Post creation hook for new operator */
543  InvokeObjectPostCreateHook(OperatorRelationId, operatorObjectId, 0);
544 
545  heap_close(pg_operator_desc, RowExclusiveLock);
546 
547  /*
548  * If a commutator and/or negator link is provided, update the other
549  * operator(s) to point at this one, if they don't already have a link.
550  * This supports an alternative style of operator definition wherein the
551  * user first defines one operator without giving negator or commutator,
552  * then defines the other operator of the pair with the proper commutator
553  * or negator attribute. That style doesn't require creation of a shell,
554  * and it's the only style that worked right before Postgres version 6.5.
555  * This code also takes care of the situation where the new operator is
556  * its own commutator.
557  */
558  if (selfCommutator)
559  commutatorId = operatorObjectId;
560 
561  if (OidIsValid(commutatorId) || OidIsValid(negatorId))
562  OperatorUpd(operatorObjectId, commutatorId, negatorId, false);
563 
564  return address;
565 }
#define NameGetDatum(X)
Definition: postgres.h:601
#define Anum_pg_operator_oprowner
Definition: pg_operator.h:67
#define Anum_pg_operator_oprleft
Definition: pg_operator.h:71
#define OperatorRelationId
Definition: pg_operator.h:32
#define Anum_pg_operator_oprcanhash
Definition: pg_operator.h:70
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:145
#define RelationGetDescr(relation)
Definition: rel.h:428
Oid GetUserId(void)
Definition: miscinit.c:284
ObjectAddress makeOperatorDependencies(HeapTuple tuple, bool isUpdate)
Definition: pg_operator.c:764
static Oid OperatorGet(const char *operatorName, Oid operatorNamespace, Oid leftObjectId, Oid rightObjectId, bool *defined)
Definition: pg_operator.c:130
bool pg_oper_ownercheck(Oid oper_oid, Oid roleid)
Definition: aclchk.c:4598
int errcode(int sqlerrcode)
Definition: elog.c:575
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:692
#define heap_close(r, l)
Definition: heapam.h:97
unsigned int Oid
Definition: postgres_ext.h:31
int namestrcpy(Name name, const char *str)
Definition: name.c:216
#define OidIsValid(objectId)
Definition: c.h:538
#define Anum_pg_operator_oprjoin
Definition: pg_operator.h:78
static Oid get_other_operator(List *otherOp, Oid otherLeftTypeId, Oid otherRightTypeId, const char *operatorName, Oid operatorNamespace, Oid leftTypeId, Oid rightTypeId, bool isCommutator)
Definition: pg_operator.c:576
Oid get_func_rettype(Oid funcid)
Definition: lsyscache.c:1459
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
Oid CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:162
ItemPointerData t_self
Definition: htup.h:65
Definition: c.h:493
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
#define RowExclusiveLock
Definition: lockdefs.h:38
#define Anum_pg_operator_oprnegate
Definition: pg_operator.h:75
#define ereport(elevel, rest)
Definition: elog.h:122
#define Anum_pg_operator_oprright
Definition: pg_operator.h:72
#define Anum_pg_operator_oprrest
Definition: pg_operator.h:77
char * NameListToString(List *names)
Definition: namespace.c:3063
uintptr_t Datum
Definition: postgres.h:372
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define BoolGetDatum(X)
Definition: postgres.h:408
#define InvalidOid
Definition: postgres_ext.h:36
void OperatorUpd(Oid baseId, Oid commId, Oid negId, bool isDelete)
Definition: pg_operator.c:645
#define Anum_pg_operator_oprname
Definition: pg_operator.h:65
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define Anum_pg_operator_oprcom
Definition: pg_operator.h:74
#define NULL
Definition: c.h:229
#define Anum_pg_operator_oprresult
Definition: pg_operator.h:73
#define Anum_pg_operator_oprcode
Definition: pg_operator.h:76
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
#define BOOLOID
Definition: pg_type.h:288
#define CharGetDatum(X)
Definition: postgres.h:422
#define Anum_pg_operator_oprcanmerge
Definition: pg_operator.h:69
static Datum values[MAXATTR]
Definition: bootstrap.c:163
#define Anum_pg_operator_oprnamespace
Definition: pg_operator.h:66
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:165
#define Natts_pg_operator
Definition: pg_operator.h:64
int errmsg(const char *fmt,...)
Definition: elog.c:797
int i
#define elog
Definition: elog.h:219
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:791
static bool validOperatorName(const char *name)
Definition: pg_operator.c:74
#define Anum_pg_operator_oprkind
Definition: pg_operator.h:68
void OperatorUpd ( Oid  baseId,
Oid  commId,
Oid  negId,
bool  isDelete 
)

Definition at line 645 of file pg_operator.c.

References CatalogTupleUpdate(), CommandCounterIncrement(), GETSTRUCT, heap_close, heap_open(), HeapTupleIsValid, InvalidOid, NULL, ObjectIdGetDatum, OidIsValid, OperatorRelationId, OPEROID, RowExclusiveLock, SearchSysCacheCopy1, and HeapTupleData::t_self.

Referenced by OperatorCreate(), and RemoveOperatorById().

646 {
647  Relation pg_operator_desc;
648  HeapTuple tup;
649 
650  /*
651  * If we're making an operator into its own commutator, then we need a
652  * command-counter increment here, since we've just inserted the tuple
653  * we're about to update. But when we're dropping an operator, we can
654  * skip this because we're at the beginning of the command.
655  */
656  if (!isDelete)
658 
659  /* Open the relation. */
660  pg_operator_desc = heap_open(OperatorRelationId, RowExclusiveLock);
661 
662  /* Get a writable copy of the commutator's tuple. */
663  if (OidIsValid(commId))
665  else
666  tup = NULL;
667 
668  /* Update the commutator's tuple if need be. */
669  if (HeapTupleIsValid(tup))
670  {
672  bool update_commutator = false;
673 
674  /*
675  * Out of due caution, we only change the commutator's oprcom field if
676  * it has the exact value we expected: InvalidOid when creating an
677  * operator, or baseId when dropping one.
678  */
679  if (isDelete && t->oprcom == baseId)
680  {
681  t->oprcom = InvalidOid;
682  update_commutator = true;
683  }
684  else if (!isDelete && !OidIsValid(t->oprcom))
685  {
686  t->oprcom = baseId;
687  update_commutator = true;
688  }
689 
690  /* If any columns were found to need modification, update tuple. */
691  if (update_commutator)
692  {
693  CatalogTupleUpdate(pg_operator_desc, &tup->t_self, tup);
694 
695  /*
696  * Do CCI to make the updated tuple visible. We must do this in
697  * case the commutator is also the negator. (Which would be a
698  * logic error on the operator definer's part, but that's not a
699  * good reason to fail here.) We would need a CCI anyway in the
700  * deletion case for a self-commutator with no negator.
701  */
703  }
704  }
705 
706  /*
707  * Similarly find and update the negator, if any.
708  */
709  if (OidIsValid(negId))
711  else
712  tup = NULL;
713 
714  if (HeapTupleIsValid(tup))
715  {
717  bool update_negator = false;
718 
719  /*
720  * Out of due caution, we only change the negator's oprnegate field if
721  * it has the exact value we expected: InvalidOid when creating an
722  * operator, or baseId when dropping one.
723  */
724  if (isDelete && t->oprnegate == baseId)
725  {
726  t->oprnegate = InvalidOid;
727  update_negator = true;
728  }
729  else if (!isDelete && !OidIsValid(t->oprnegate))
730  {
731  t->oprnegate = baseId;
732  update_negator = true;
733  }
734 
735  /* If any columns were found to need modification, update tuple. */
736  if (update_negator)
737  {
738  CatalogTupleUpdate(pg_operator_desc, &tup->t_self, tup);
739 
740  /*
741  * In the deletion case, do CCI to make the updated tuple visible.
742  * We must do this in case the operator is its own negator. (Which
743  * would be a logic error on the operator definer's part, but
744  * that's not a good reason to fail here.)
745  */
746  if (isDelete)
748  }
749  }
750 
751  /* Close relation and release catalog lock. */
752  heap_close(pg_operator_desc, RowExclusiveLock);
753 }
#define OperatorRelationId
Definition: pg_operator.h:32
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define heap_close(r, l)
Definition: heapam.h:97
#define OidIsValid(objectId)
Definition: c.h:538
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
void CommandCounterIncrement(void)
Definition: xact.c:922
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define InvalidOid
Definition: postgres_ext.h:36
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define NULL
Definition: c.h:229
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
FormData_pg_operator* Form_pg_operator
Definition: pg_operator.h:57
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:165