PostgreSQL Source Code  git master
defrem.h File Reference
#include "catalog/objectaddress.h"
#include "nodes/params.h"
#include "parser/parse_node.h"
#include "tcop/dest.h"
#include "utils/array.h"
Include dependency graph for defrem.h:
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Functions

void RemoveObjects (DropStmt *stmt)
 
ObjectAddress DefineIndex (Oid relationId, IndexStmt *stmt, Oid indexRelationId, Oid parentIndexId, Oid parentConstraintId, bool is_alter_table, bool check_rights, bool check_not_in_use, bool skip_build, bool quiet)
 
void ExecReindex (ParseState *pstate, ReindexStmt *stmt, bool isTopLevel)
 
char * makeObjectName (const char *name1, const char *name2, const char *label)
 
char * ChooseRelationName (const char *name1, const char *name2, const char *label, Oid namespaceid, bool isconstraint)
 
bool CheckIndexCompatible (Oid oldId, const char *accessMethodName, List *attributeList, List *exclusionOpNames)
 
Oid GetDefaultOpClass (Oid type_id, Oid am_id)
 
Oid ResolveOpClass (List *opclass, Oid attrType, const char *accessMethodName, Oid accessMethodId)
 
ObjectAddress CreateFunction (ParseState *pstate, CreateFunctionStmt *stmt)
 
void RemoveFunctionById (Oid funcOid)
 
ObjectAddress AlterFunction (ParseState *pstate, AlterFunctionStmt *stmt)
 
ObjectAddress CreateCast (CreateCastStmt *stmt)
 
ObjectAddress CreateTransform (CreateTransformStmt *stmt)
 
void IsThereFunctionInNamespace (const char *proname, int pronargs, oidvector *proargtypes, Oid nspOid)
 
void ExecuteDoStmt (ParseState *pstate, DoStmt *stmt, bool atomic)
 
void ExecuteCallStmt (CallStmt *stmt, ParamListInfo params, bool atomic, DestReceiver *dest)
 
TupleDesc CallStmtResultDesc (CallStmt *stmt)
 
Oid get_transform_oid (Oid type_id, Oid lang_id, bool missing_ok)
 
void interpret_function_parameter_list (ParseState *pstate, List *parameters, Oid languageOid, ObjectType objtype, oidvector **parameterTypes, List **parameterTypes_list, ArrayType **allParameterTypes, ArrayType **parameterModes, ArrayType **parameterNames, List **inParameterNames_list, List **parameterDefaults, Oid *variadicArgType, Oid *requiredResultType)
 
ObjectAddress DefineOperator (List *names, List *parameters)
 
void RemoveOperatorById (Oid operOid)
 
ObjectAddress AlterOperator (AlterOperatorStmt *stmt)
 
ObjectAddress CreateStatistics (CreateStatsStmt *stmt)
 
ObjectAddress AlterStatistics (AlterStatsStmt *stmt)
 
void RemoveStatisticsById (Oid statsOid)
 
Oid StatisticsGetRelation (Oid statId, bool missing_ok)
 
ObjectAddress DefineAggregate (ParseState *pstate, List *name, List *args, bool oldstyle, List *parameters, bool replace)
 
ObjectAddress DefineOpClass (CreateOpClassStmt *stmt)
 
ObjectAddress DefineOpFamily (CreateOpFamilyStmt *stmt)
 
Oid AlterOpFamily (AlterOpFamilyStmt *stmt)
 
void IsThereOpClassInNamespace (const char *opcname, Oid opcmethod, Oid opcnamespace)
 
void IsThereOpFamilyInNamespace (const char *opfname, Oid opfmethod, Oid opfnamespace)
 
Oid get_opclass_oid (Oid amID, List *opclassname, bool missing_ok)
 
Oid get_opfamily_oid (Oid amID, List *opfamilyname, bool missing_ok)
 
ObjectAddress DefineTSParser (List *names, List *parameters)
 
ObjectAddress DefineTSDictionary (List *names, List *parameters)
 
ObjectAddress AlterTSDictionary (AlterTSDictionaryStmt *stmt)
 
ObjectAddress DefineTSTemplate (List *names, List *parameters)
 
ObjectAddress DefineTSConfiguration (List *names, List *parameters, ObjectAddress *copied)
 
void RemoveTSConfigurationById (Oid cfgId)
 
ObjectAddress AlterTSConfiguration (AlterTSConfigurationStmt *stmt)
 
textserialize_deflist (List *deflist)
 
Listdeserialize_deflist (Datum txt)
 
ObjectAddress AlterForeignServerOwner (const char *name, Oid newOwnerId)
 
void AlterForeignServerOwner_oid (Oid, Oid newOwnerId)
 
ObjectAddress AlterForeignDataWrapperOwner (const char *name, Oid newOwnerId)
 
void AlterForeignDataWrapperOwner_oid (Oid fwdId, Oid newOwnerId)
 
ObjectAddress CreateForeignDataWrapper (ParseState *pstate, CreateFdwStmt *stmt)
 
ObjectAddress AlterForeignDataWrapper (ParseState *pstate, AlterFdwStmt *stmt)
 
ObjectAddress CreateForeignServer (CreateForeignServerStmt *stmt)
 
ObjectAddress AlterForeignServer (AlterForeignServerStmt *stmt)
 
ObjectAddress CreateUserMapping (CreateUserMappingStmt *stmt)
 
ObjectAddress AlterUserMapping (AlterUserMappingStmt *stmt)
 
Oid RemoveUserMapping (DropUserMappingStmt *stmt)
 
void CreateForeignTable (CreateForeignTableStmt *stmt, Oid relid)
 
void ImportForeignSchema (ImportForeignSchemaStmt *stmt)
 
Datum transformGenericOptions (Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
 
ObjectAddress CreateAccessMethod (CreateAmStmt *stmt)
 
Oid get_index_am_oid (const char *amname, bool missing_ok)
 
Oid get_table_am_oid (const char *amname, bool missing_ok)
 
Oid get_am_oid (const char *amname, bool missing_ok)
 
char * get_am_name (Oid amOid)
 
char * defGetString (DefElem *def)
 
double defGetNumeric (DefElem *def)
 
bool defGetBoolean (DefElem *def)
 
int32 defGetInt32 (DefElem *def)
 
int64 defGetInt64 (DefElem *def)
 
ListdefGetQualifiedName (DefElem *def)
 
TypeNamedefGetTypeName (DefElem *def)
 
int defGetTypeLength (DefElem *def)
 
ListdefGetStringList (DefElem *def)
 
void errorConflictingDefElem (DefElem *defel, ParseState *pstate) pg_attribute_noreturn()
 

Function Documentation

◆ AlterForeignDataWrapper()

ObjectAddress AlterForeignDataWrapper ( ParseState pstate,
AlterFdwStmt stmt 
)

Definition at line 674 of file foreigncmds.c.

References CatalogTupleUpdate(), ObjectAddress::classId, CStringGetDatum, DatumGetPointer, deleteDependencyRecordsForClass(), DEPENDENCY_NORMAL, ereport, errcode(), errhint(), errmsg(), ERROR, AlterFdwStmt::fdwname, FOREIGNDATAWRAPPERNAME, FOREIGNDATAWRAPPEROID, AlterFdwStmt::func_options, GETSTRUCT, heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, InvokeObjectPostAlterHook, ObjectAddressSet, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, AlterFdwStmt::options, parse_func_options(), PointerGetDatum, PointerIsValid, recordDependencyOn(), RelationGetDescr, RowExclusiveLock, SearchSysCacheCopy1, superuser(), SysCacheGetAttr(), HeapTupleData::t_self, table_close(), table_open(), transformGenericOptions(), and WARNING.

Referenced by ProcessUtilitySlow().

675 {
676  Relation rel;
677  HeapTuple tp;
679  Datum repl_val[Natts_pg_foreign_data_wrapper];
680  bool repl_null[Natts_pg_foreign_data_wrapper];
681  bool repl_repl[Natts_pg_foreign_data_wrapper];
682  Oid fdwId;
683  bool isnull;
684  Datum datum;
685  bool handler_given;
686  bool validator_given;
687  Oid fdwhandler;
688  Oid fdwvalidator;
689  ObjectAddress myself;
690 
691  rel = table_open(ForeignDataWrapperRelationId, RowExclusiveLock);
692 
693  /* Must be super user */
694  if (!superuser())
695  ereport(ERROR,
696  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
697  errmsg("permission denied to alter foreign-data wrapper \"%s\"",
698  stmt->fdwname),
699  errhint("Must be superuser to alter a foreign-data wrapper.")));
700 
702  CStringGetDatum(stmt->fdwname));
703 
704  if (!HeapTupleIsValid(tp))
705  ereport(ERROR,
706  (errcode(ERRCODE_UNDEFINED_OBJECT),
707  errmsg("foreign-data wrapper \"%s\" does not exist", stmt->fdwname)));
708 
709  fdwForm = (Form_pg_foreign_data_wrapper) GETSTRUCT(tp);
710  fdwId = fdwForm->oid;
711 
712  memset(repl_val, 0, sizeof(repl_val));
713  memset(repl_null, false, sizeof(repl_null));
714  memset(repl_repl, false, sizeof(repl_repl));
715 
716  parse_func_options(pstate, stmt->func_options,
717  &handler_given, &fdwhandler,
718  &validator_given, &fdwvalidator);
719 
720  if (handler_given)
721  {
722  repl_val[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = ObjectIdGetDatum(fdwhandler);
723  repl_repl[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = true;
724 
725  /*
726  * It could be that the behavior of accessing foreign table changes
727  * with the new handler. Warn about this.
728  */
730  (errmsg("changing the foreign-data wrapper handler can change behavior of existing foreign tables")));
731  }
732 
733  if (validator_given)
734  {
735  repl_val[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = ObjectIdGetDatum(fdwvalidator);
736  repl_repl[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = true;
737 
738  /*
739  * It could be that existing options for the FDW or dependent SERVER,
740  * USER MAPPING or FOREIGN TABLE objects are no longer valid according
741  * to the new validator. Warn about this.
742  */
743  if (OidIsValid(fdwvalidator))
745  (errmsg("changing the foreign-data wrapper validator can cause "
746  "the options for dependent objects to become invalid")));
747  }
748  else
749  {
750  /*
751  * Validator is not changed, but we need it for validating options.
752  */
753  fdwvalidator = fdwForm->fdwvalidator;
754  }
755 
756  /*
757  * If options specified, validate and update.
758  */
759  if (stmt->options)
760  {
761  /* Extract the current options */
763  tp,
764  Anum_pg_foreign_data_wrapper_fdwoptions,
765  &isnull);
766  if (isnull)
767  datum = PointerGetDatum(NULL);
768 
769  /* Transform the options */
770  datum = transformGenericOptions(ForeignDataWrapperRelationId,
771  datum,
772  stmt->options,
773  fdwvalidator);
774 
775  if (PointerIsValid(DatumGetPointer(datum)))
776  repl_val[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = datum;
777  else
778  repl_null[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = true;
779 
780  repl_repl[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = true;
781  }
782 
783  /* Everything looks good - update the tuple */
784  tp = heap_modify_tuple(tp, RelationGetDescr(rel),
785  repl_val, repl_null, repl_repl);
786 
787  CatalogTupleUpdate(rel, &tp->t_self, tp);
788 
789  heap_freetuple(tp);
790 
791  ObjectAddressSet(myself, ForeignDataWrapperRelationId, fdwId);
792 
793  /* Update function dependencies if we changed them */
794  if (handler_given || validator_given)
795  {
796  ObjectAddress referenced;
797 
798  /*
799  * Flush all existing dependency records of this FDW on functions; we
800  * assume there can be none other than the ones we are fixing.
801  */
802  deleteDependencyRecordsForClass(ForeignDataWrapperRelationId,
803  fdwId,
804  ProcedureRelationId,
806 
807  /* And build new ones. */
808 
809  if (OidIsValid(fdwhandler))
810  {
811  referenced.classId = ProcedureRelationId;
812  referenced.objectId = fdwhandler;
813  referenced.objectSubId = 0;
814  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
815  }
816 
817  if (OidIsValid(fdwvalidator))
818  {
819  referenced.classId = ProcedureRelationId;
820  referenced.objectId = fdwvalidator;
821  referenced.objectSubId = 0;
822  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
823  }
824  }
825 
826  InvokeObjectPostAlterHook(ForeignDataWrapperRelationId, fdwId, 0);
827 
829 
830  return myself;
831 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
int errhint(const char *fmt,...)
Definition: elog.c:1156
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define RelationGetDescr(relation)
Definition: rel.h:503
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
char * fdwname
Definition: parsenodes.h:2385
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
List * func_options
Definition: parsenodes.h:2386
#define WARNING
Definition: elog.h:40
uintptr_t Datum
Definition: postgres.h:411
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
long deleteDependencyRecordsForClass(Oid classId, Oid objectId, Oid refclassId, char deptype)
Definition: pg_depend.c:286
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
FormData_pg_foreign_data_wrapper * Form_pg_foreign_data_wrapper
static void parse_func_options(ParseState *pstate, List *func_options, bool *handler_given, Oid *fdwhandler, bool *validator_given, Oid *fdwvalidator)
Definition: foreigncmds.c:518
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define DatumGetPointer(X)
Definition: postgres.h:593
List * options
Definition: parsenodes.h:2387
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
#define PointerIsValid(pointer)
Definition: c.h:698

◆ AlterForeignDataWrapperOwner()

ObjectAddress AlterForeignDataWrapperOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 275 of file foreigncmds.c.

References AlterForeignDataWrapperOwner_internal(), CStringGetDatum, ereport, errcode(), errmsg(), ERROR, FOREIGNDATAWRAPPERNAME, GETSTRUCT, heap_freetuple(), HeapTupleIsValid, ObjectAddressSet, RowExclusiveLock, SearchSysCacheCopy1, table_close(), and table_open().

Referenced by ExecAlterOwnerStmt().

276 {
277  Oid fdwId;
278  HeapTuple tup;
279  Relation rel;
280  ObjectAddress address;
282 
283 
284  rel = table_open(ForeignDataWrapperRelationId, RowExclusiveLock);
285 
287 
288  if (!HeapTupleIsValid(tup))
289  ereport(ERROR,
290  (errcode(ERRCODE_UNDEFINED_OBJECT),
291  errmsg("foreign-data wrapper \"%s\" does not exist", name)));
292 
294  fdwId = form->oid;
295 
296  AlterForeignDataWrapperOwner_internal(rel, tup, newOwnerId);
297 
298  ObjectAddressSet(address, ForeignDataWrapperRelationId, fdwId);
299 
300  heap_freetuple(tup);
301 
303 
304  return address;
305 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
int errcode(int sqlerrcode)
Definition: elog.c:698
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
FormData_pg_foreign_data_wrapper * Form_pg_foreign_data_wrapper
const char * name
Definition: encode.c:515
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
static void AlterForeignDataWrapperOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
Definition: foreigncmds.c:205
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterForeignDataWrapperOwner_oid()

void AlterForeignDataWrapperOwner_oid ( Oid  fwdId,
Oid  newOwnerId 
)

Definition at line 313 of file foreigncmds.c.

References AlterForeignDataWrapperOwner_internal(), ereport, errcode(), errmsg(), ERROR, FOREIGNDATAWRAPPEROID, heap_freetuple(), HeapTupleIsValid, ObjectIdGetDatum, RowExclusiveLock, SearchSysCacheCopy1, table_close(), and table_open().

Referenced by shdepReassignOwned().

314 {
315  HeapTuple tup;
316  Relation rel;
317 
318  rel = table_open(ForeignDataWrapperRelationId, RowExclusiveLock);
319 
321 
322  if (!HeapTupleIsValid(tup))
323  ereport(ERROR,
324  (errcode(ERRCODE_UNDEFINED_OBJECT),
325  errmsg("foreign-data wrapper with OID %u does not exist", fwdId)));
326 
327  AlterForeignDataWrapperOwner_internal(rel, tup, newOwnerId);
328 
329  heap_freetuple(tup);
330 
332 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
int errcode(int sqlerrcode)
Definition: elog.c:698
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
static void AlterForeignDataWrapperOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
Definition: foreigncmds.c:205
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterForeignServer()

ObjectAddress AlterForeignServer ( AlterForeignServerStmt stmt)

Definition at line 965 of file foreigncmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, CatalogTupleUpdate(), CStringGetDatum, CStringGetTextDatum, DatumGetPointer, ereport, errcode(), errmsg(), ERROR, ForeignDataWrapper::fdwvalidator, FOREIGNSERVERNAME, FOREIGNSERVEROID, GetForeignDataWrapper(), GETSTRUCT, GetUserId(), AlterForeignServerStmt::has_version, heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, InvokeObjectPostAlterHook, OBJECT_FOREIGN_SERVER, ObjectAddressSet, AlterForeignServerStmt::options, pg_foreign_server_ownercheck(), PointerGetDatum, PointerIsValid, RelationGetDescr, RowExclusiveLock, SearchSysCacheCopy1, AlterForeignServerStmt::servername, SysCacheGetAttr(), HeapTupleData::t_self, table_close(), table_open(), transformGenericOptions(), and AlterForeignServerStmt::version.

Referenced by ProcessUtilitySlow().

966 {
967  Relation rel;
968  HeapTuple tp;
969  Datum repl_val[Natts_pg_foreign_server];
970  bool repl_null[Natts_pg_foreign_server];
971  bool repl_repl[Natts_pg_foreign_server];
972  Oid srvId;
973  Form_pg_foreign_server srvForm;
974  ObjectAddress address;
975 
976  rel = table_open(ForeignServerRelationId, RowExclusiveLock);
977 
979  CStringGetDatum(stmt->servername));
980 
981  if (!HeapTupleIsValid(tp))
982  ereport(ERROR,
983  (errcode(ERRCODE_UNDEFINED_OBJECT),
984  errmsg("server \"%s\" does not exist", stmt->servername)));
985 
986  srvForm = (Form_pg_foreign_server) GETSTRUCT(tp);
987  srvId = srvForm->oid;
988 
989  /*
990  * Only owner or a superuser can ALTER a SERVER.
991  */
994  stmt->servername);
995 
996  memset(repl_val, 0, sizeof(repl_val));
997  memset(repl_null, false, sizeof(repl_null));
998  memset(repl_repl, false, sizeof(repl_repl));
999 
1000  if (stmt->has_version)
1001  {
1002  /*
1003  * Change the server VERSION string.
1004  */
1005  if (stmt->version)
1006  repl_val[Anum_pg_foreign_server_srvversion - 1] =
1008  else
1009  repl_null[Anum_pg_foreign_server_srvversion - 1] = true;
1010 
1011  repl_repl[Anum_pg_foreign_server_srvversion - 1] = true;
1012  }
1013 
1014  if (stmt->options)
1015  {
1016  ForeignDataWrapper *fdw = GetForeignDataWrapper(srvForm->srvfdw);
1017  Datum datum;
1018  bool isnull;
1019 
1020  /* Extract the current srvoptions */
1022  tp,
1023  Anum_pg_foreign_server_srvoptions,
1024  &isnull);
1025  if (isnull)
1026  datum = PointerGetDatum(NULL);
1027 
1028  /* Prepare the options array */
1029  datum = transformGenericOptions(ForeignServerRelationId,
1030  datum,
1031  stmt->options,
1032  fdw->fdwvalidator);
1033 
1034  if (PointerIsValid(DatumGetPointer(datum)))
1035  repl_val[Anum_pg_foreign_server_srvoptions - 1] = datum;
1036  else
1037  repl_null[Anum_pg_foreign_server_srvoptions - 1] = true;
1038 
1039  repl_repl[Anum_pg_foreign_server_srvoptions - 1] = true;
1040  }
1041 
1042  /* Everything looks good - update the tuple */
1043  tp = heap_modify_tuple(tp, RelationGetDescr(rel),
1044  repl_val, repl_null, repl_repl);
1045 
1046  CatalogTupleUpdate(rel, &tp->t_self, tp);
1047 
1048  InvokeObjectPostAlterHook(ForeignServerRelationId, srvId, 0);
1049 
1050  ObjectAddressSet(address, ForeignServerRelationId, srvId);
1051 
1052  heap_freetuple(tp);
1053 
1055 
1056  return address;
1057 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
bool pg_foreign_server_ownercheck(Oid srv_oid, Oid roleid)
Definition: aclchk.c:5182
int errcode(int sqlerrcode)
Definition: elog.c:698
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
ForeignDataWrapper * GetForeignDataWrapper(Oid fdwid)
Definition: foreign.c:35
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
uintptr_t Datum
Definition: postgres.h:411
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
FormData_pg_foreign_server * Form_pg_foreign_server
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define DatumGetPointer(X)
Definition: postgres.h:593
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define CStringGetTextDatum(s)
Definition: builtins.h:82
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
#define PointerIsValid(pointer)
Definition: c.h:698

◆ AlterForeignServerOwner()

ObjectAddress AlterForeignServerOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 415 of file foreigncmds.c.

References AlterForeignServerOwner_internal(), CStringGetDatum, ereport, errcode(), errmsg(), ERROR, FOREIGNSERVERNAME, GETSTRUCT, heap_freetuple(), HeapTupleIsValid, ObjectAddressSet, RowExclusiveLock, SearchSysCacheCopy1, table_close(), and table_open().

Referenced by ExecAlterOwnerStmt().

416 {
417  Oid servOid;
418  HeapTuple tup;
419  Relation rel;
420  ObjectAddress address;
422 
423  rel = table_open(ForeignServerRelationId, RowExclusiveLock);
424 
426 
427  if (!HeapTupleIsValid(tup))
428  ereport(ERROR,
429  (errcode(ERRCODE_UNDEFINED_OBJECT),
430  errmsg("server \"%s\" does not exist", name)));
431 
432  form = (Form_pg_foreign_server) GETSTRUCT(tup);
433  servOid = form->oid;
434 
435  AlterForeignServerOwner_internal(rel, tup, newOwnerId);
436 
437  ObjectAddressSet(address, ForeignServerRelationId, servOid);
438 
439  heap_freetuple(tup);
440 
442 
443  return address;
444 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
int errcode(int sqlerrcode)
Definition: elog.c:698
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
FormData_pg_foreign_server * Form_pg_foreign_server
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
static void AlterForeignServerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
Definition: foreigncmds.c:338
const char * name
Definition: encode.c:515
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterForeignServerOwner_oid()

void AlterForeignServerOwner_oid ( Oid  ,
Oid  newOwnerId 
)

Definition at line 450 of file foreigncmds.c.

References AlterForeignServerOwner_internal(), ereport, errcode(), errmsg(), ERROR, FOREIGNSERVEROID, heap_freetuple(), HeapTupleIsValid, ObjectIdGetDatum, RowExclusiveLock, SearchSysCacheCopy1, table_close(), and table_open().

Referenced by shdepReassignOwned().

451 {
452  HeapTuple tup;
453  Relation rel;
454 
455  rel = table_open(ForeignServerRelationId, RowExclusiveLock);
456 
458 
459  if (!HeapTupleIsValid(tup))
460  ereport(ERROR,
461  (errcode(ERRCODE_UNDEFINED_OBJECT),
462  errmsg("foreign server with OID %u does not exist", srvId)));
463 
464  AlterForeignServerOwner_internal(rel, tup, newOwnerId);
465 
466  heap_freetuple(tup);
467 
469 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
int errcode(int sqlerrcode)
Definition: elog.c:698
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
static void AlterForeignServerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
Definition: foreigncmds.c:338
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterFunction()

ObjectAddress AlterFunction ( ParseState pstate,
AlterFunctionStmt stmt 
)

Definition at line 1352 of file functioncmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, AlterFunctionStmt::actions, DefElem::arg, CatalogTupleUpdate(), changeDependencyFor(), ObjectAddress::classId, compute_common_attribute(), DatumGetArrayTypeP, defGetNumeric(), DefElem::defname, DEPENDENCY_NORMAL, elog, ereport, errcode(), errmsg(), ERROR, AlterFunctionStmt::func, GETSTRUCT, GetUserId(), heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, interpret_func_parallel(), interpret_func_support(), interpret_func_volatility(), intVal, InvokeObjectPostAlterHook, lfirst, LookupFuncWithArgs(), NameListToString(), NIL, NoLock, ObjectAddressSet, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, ObjectWithArgs::objname, AlterFunctionStmt::objtype, OidIsValid, pg_proc_ownercheck(), PointerGetDatum, PROCOID, recordDependencyOn(), RelationGetDescr, RowExclusiveLock, SearchSysCacheCopy1, superuser(), SysCacheGetAttr(), HeapTupleData::t_self, table_close(), table_open(), and update_proconfig_value().

Referenced by ProcessUtilitySlow().

1353 {
1354  HeapTuple tup;
1355  Oid funcOid;
1356  Form_pg_proc procForm;
1357  bool is_procedure;
1358  Relation rel;
1359  ListCell *l;
1360  DefElem *volatility_item = NULL;
1361  DefElem *strict_item = NULL;
1362  DefElem *security_def_item = NULL;
1363  DefElem *leakproof_item = NULL;
1364  List *set_items = NIL;
1365  DefElem *cost_item = NULL;
1366  DefElem *rows_item = NULL;
1367  DefElem *support_item = NULL;
1368  DefElem *parallel_item = NULL;
1369  ObjectAddress address;
1370 
1371  rel = table_open(ProcedureRelationId, RowExclusiveLock);
1372 
1373  funcOid = LookupFuncWithArgs(stmt->objtype, stmt->func, false);
1374 
1375  ObjectAddressSet(address, ProcedureRelationId, funcOid);
1376 
1377  tup = SearchSysCacheCopy1(PROCOID, ObjectIdGetDatum(funcOid));
1378  if (!HeapTupleIsValid(tup)) /* should not happen */
1379  elog(ERROR, "cache lookup failed for function %u", funcOid);
1380 
1381  procForm = (Form_pg_proc) GETSTRUCT(tup);
1382 
1383  /* Permission check: must own function */
1384  if (!pg_proc_ownercheck(funcOid, GetUserId()))
1386  NameListToString(stmt->func->objname));
1387 
1388  if (procForm->prokind == PROKIND_AGGREGATE)
1389  ereport(ERROR,
1390  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1391  errmsg("\"%s\" is an aggregate function",
1392  NameListToString(stmt->func->objname))));
1393 
1394  is_procedure = (procForm->prokind == PROKIND_PROCEDURE);
1395 
1396  /* Examine requested actions. */
1397  foreach(l, stmt->actions)
1398  {
1399  DefElem *defel = (DefElem *) lfirst(l);
1400 
1401  if (compute_common_attribute(pstate,
1402  is_procedure,
1403  defel,
1404  &volatility_item,
1405  &strict_item,
1406  &security_def_item,
1407  &leakproof_item,
1408  &set_items,
1409  &cost_item,
1410  &rows_item,
1411  &support_item,
1412  &parallel_item) == false)
1413  elog(ERROR, "option \"%s\" not recognized", defel->defname);
1414  }
1415 
1416  if (volatility_item)
1417  procForm->provolatile = interpret_func_volatility(volatility_item);
1418  if (strict_item)
1419  procForm->proisstrict = intVal(strict_item->arg);
1420  if (security_def_item)
1421  procForm->prosecdef = intVal(security_def_item->arg);
1422  if (leakproof_item)
1423  {
1424  procForm->proleakproof = intVal(leakproof_item->arg);
1425  if (procForm->proleakproof && !superuser())
1426  ereport(ERROR,
1427  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
1428  errmsg("only superuser can define a leakproof function")));
1429  }
1430  if (cost_item)
1431  {
1432  procForm->procost = defGetNumeric(cost_item);
1433  if (procForm->procost <= 0)
1434  ereport(ERROR,
1435  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1436  errmsg("COST must be positive")));
1437  }
1438  if (rows_item)
1439  {
1440  procForm->prorows = defGetNumeric(rows_item);
1441  if (procForm->prorows <= 0)
1442  ereport(ERROR,
1443  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1444  errmsg("ROWS must be positive")));
1445  if (!procForm->proretset)
1446  ereport(ERROR,
1447  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1448  errmsg("ROWS is not applicable when function does not return a set")));
1449  }
1450  if (support_item)
1451  {
1452  /* interpret_func_support handles the privilege check */
1453  Oid newsupport = interpret_func_support(support_item);
1454 
1455  /* Add or replace dependency on support function */
1456  if (OidIsValid(procForm->prosupport))
1457  changeDependencyFor(ProcedureRelationId, funcOid,
1458  ProcedureRelationId, procForm->prosupport,
1459  newsupport);
1460  else
1461  {
1462  ObjectAddress referenced;
1463 
1464  referenced.classId = ProcedureRelationId;
1465  referenced.objectId = newsupport;
1466  referenced.objectSubId = 0;
1467  recordDependencyOn(&address, &referenced, DEPENDENCY_NORMAL);
1468  }
1469 
1470  procForm->prosupport = newsupport;
1471  }
1472  if (set_items)
1473  {
1474  Datum datum;
1475  bool isnull;
1476  ArrayType *a;
1477  Datum repl_val[Natts_pg_proc];
1478  bool repl_null[Natts_pg_proc];
1479  bool repl_repl[Natts_pg_proc];
1480 
1481  /* extract existing proconfig setting */
1482  datum = SysCacheGetAttr(PROCOID, tup, Anum_pg_proc_proconfig, &isnull);
1483  a = isnull ? NULL : DatumGetArrayTypeP(datum);
1484 
1485  /* update according to each SET or RESET item, left to right */
1486  a = update_proconfig_value(a, set_items);
1487 
1488  /* update the tuple */
1489  memset(repl_repl, false, sizeof(repl_repl));
1490  repl_repl[Anum_pg_proc_proconfig - 1] = true;
1491 
1492  if (a == NULL)
1493  {
1494  repl_val[Anum_pg_proc_proconfig - 1] = (Datum) 0;
1495  repl_null[Anum_pg_proc_proconfig - 1] = true;
1496  }
1497  else
1498  {
1499  repl_val[Anum_pg_proc_proconfig - 1] = PointerGetDatum(a);
1500  repl_null[Anum_pg_proc_proconfig - 1] = false;
1501  }
1502 
1503  tup = heap_modify_tuple(tup, RelationGetDescr(rel),
1504  repl_val, repl_null, repl_repl);
1505  }
1506  if (parallel_item)
1507  procForm->proparallel = interpret_func_parallel(parallel_item);
1508 
1509  /* Do the update */
1510  CatalogTupleUpdate(rel, &tup->t_self, tup);
1511 
1512  InvokeObjectPostAlterHook(ProcedureRelationId, funcOid, 0);
1513 
1514  table_close(rel, NoLock);
1515  heap_freetuple(tup);
1516 
1517  return address;
1518 }
#define NIL
Definition: pg_list.h:65
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
#define PointerGetDatum(X)
Definition: postgres.h:600
double defGetNumeric(DefElem *def)
Definition: define.c:85
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
static Oid interpret_func_support(DefElem *defel)
Definition: functioncmds.c:678
ItemPointerData t_self
Definition: htup.h:65
ObjectType objtype
Definition: parsenodes.h:2987
#define NoLock
Definition: lockdefs.h:34
#define RowExclusiveLock
Definition: lockdefs.h:38
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
static char interpret_func_volatility(DefElem *defel)
Definition: functioncmds.c:610
Node * arg
Definition: parsenodes.h:747
char * NameListToString(List *names)
Definition: namespace.c:3147
uintptr_t Datum
Definition: postgres.h:411
static ArrayType * update_proconfig_value(ArrayType *a, List *set_items)
Definition: functioncmds.c:653
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
FormData_pg_proc * Form_pg_proc
Definition: pg_proc.h:136
#define ereport(elevel,...)
Definition: elog.h:157
ObjectWithArgs * func
Definition: parsenodes.h:2988
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:169
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
#define intVal(v)
Definition: value.h:52
int errmsg(const char *fmt,...)
Definition: elog.c:909
long changeDependencyFor(Oid classId, Oid objectId, Oid refClassId, Oid oldRefObjectId, Oid newRefObjectId)
Definition: pg_depend.c:392
#define elog(elevel,...)
Definition: elog.h:232
Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func, bool missing_ok)
Definition: parse_func.c:2207
char * defname
Definition: parsenodes.h:746
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
Definition: pg_list.h:50
static bool compute_common_attribute(ParseState *pstate, bool is_procedure, DefElem *defel, DefElem **volatility_item, DefElem **strict_item, DefElem **security_item, DefElem **leakproof_item, List **set_items, DefElem **cost_item, DefElem **rows_item, DefElem **support_item, DefElem **parallel_item)
Definition: functioncmds.c:508
bool pg_proc_ownercheck(Oid proc_oid, Oid roleid)
Definition: aclchk.c:4896
static char interpret_func_parallel(DefElem *defel)
Definition: functioncmds.c:628
#define DatumGetArrayTypeP(X)
Definition: array.h:254

◆ AlterOperator()

ObjectAddress AlterOperator ( AlterOperatorStmt stmt)

Definition at line 409 of file operatorcmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, DefElem::arg, CatalogTupleUpdate(), defGetQualifiedName(), DefElem::defname, elog, ereport, errcode(), errmsg(), ERROR, GETSTRUCT, GetUserId(), heap_modify_tuple(), HeapTupleIsValid, i, InvalidOid, InvokeObjectPostAlterHook, lfirst, LookupOperWithArgs(), makeOperatorDependencies(), NameStr, NIL, NoLock, OBJECT_OPERATOR, ObjectIdGetDatum, OidIsValid, AlterOperatorStmt::opername, OPEROID, AlterOperatorStmt::options, pg_oper_ownercheck(), RelationGetDescr, RowExclusiveLock, SearchSysCacheCopy1, HeapTupleData::t_self, table_close(), table_open(), ValidateJoinEstimator(), ValidateRestrictionEstimator(), and values.

Referenced by ProcessUtilitySlow().

410 {
411  ObjectAddress address;
412  Oid oprId;
413  Relation catalog;
414  HeapTuple tup;
415  Form_pg_operator oprForm;
416  int i;
417  ListCell *pl;
418  Datum values[Natts_pg_operator];
419  bool nulls[Natts_pg_operator];
420  bool replaces[Natts_pg_operator];
421  List *restrictionName = NIL; /* optional restrict. sel. function */
422  bool updateRestriction = false;
423  Oid restrictionOid;
424  List *joinName = NIL; /* optional join sel. function */
425  bool updateJoin = false;
426  Oid joinOid;
427 
428  /* Look up the operator */
429  oprId = LookupOperWithArgs(stmt->opername, false);
430  catalog = table_open(OperatorRelationId, RowExclusiveLock);
432  if (!HeapTupleIsValid(tup))
433  elog(ERROR, "cache lookup failed for operator %u", oprId);
434  oprForm = (Form_pg_operator) GETSTRUCT(tup);
435 
436  /* Process options */
437  foreach(pl, stmt->options)
438  {
439  DefElem *defel = (DefElem *) lfirst(pl);
440  List *param;
441 
442  if (defel->arg == NULL)
443  param = NIL; /* NONE, removes the function */
444  else
445  param = defGetQualifiedName(defel);
446 
447  if (strcmp(defel->defname, "restrict") == 0)
448  {
449  restrictionName = param;
450  updateRestriction = true;
451  }
452  else if (strcmp(defel->defname, "join") == 0)
453  {
454  joinName = param;
455  updateJoin = true;
456  }
457 
458  /*
459  * The rest of the options that CREATE accepts cannot be changed.
460  * Check for them so that we can give a meaningful error message.
461  */
462  else if (strcmp(defel->defname, "leftarg") == 0 ||
463  strcmp(defel->defname, "rightarg") == 0 ||
464  strcmp(defel->defname, "function") == 0 ||
465  strcmp(defel->defname, "procedure") == 0 ||
466  strcmp(defel->defname, "commutator") == 0 ||
467  strcmp(defel->defname, "negator") == 0 ||
468  strcmp(defel->defname, "hashes") == 0 ||
469  strcmp(defel->defname, "merges") == 0)
470  {
471  ereport(ERROR,
472  (errcode(ERRCODE_SYNTAX_ERROR),
473  errmsg("operator attribute \"%s\" cannot be changed",
474  defel->defname)));
475  }
476  else
477  ereport(ERROR,
478  (errcode(ERRCODE_SYNTAX_ERROR),
479  errmsg("operator attribute \"%s\" not recognized",
480  defel->defname)));
481  }
482 
483  /* Check permissions. Must be owner. */
484  if (!pg_oper_ownercheck(oprId, GetUserId()))
486  NameStr(oprForm->oprname));
487 
488  /*
489  * Look up restriction and join estimators if specified
490  */
491  if (restrictionName)
492  restrictionOid = ValidateRestrictionEstimator(restrictionName);
493  else
494  restrictionOid = InvalidOid;
495  if (joinName)
496  joinOid = ValidateJoinEstimator(joinName);
497  else
498  joinOid = InvalidOid;
499 
500  /* Perform additional checks, like OperatorCreate does */
501  if (!(OidIsValid(oprForm->oprleft) && OidIsValid(oprForm->oprright)))
502  {
503  /* If it's not a binary op, these things mustn't be set: */
504  if (OidIsValid(joinOid))
505  ereport(ERROR,
506  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
507  errmsg("only binary operators can have join selectivity")));
508  }
509 
510  if (oprForm->oprresult != BOOLOID)
511  {
512  if (OidIsValid(restrictionOid))
513  ereport(ERROR,
514  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
515  errmsg("only boolean operators can have restriction selectivity")));
516  if (OidIsValid(joinOid))
517  ereport(ERROR,
518  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
519  errmsg("only boolean operators can have join selectivity")));
520  }
521 
522  /* Update the tuple */
523  for (i = 0; i < Natts_pg_operator; ++i)
524  {
525  values[i] = (Datum) 0;
526  replaces[i] = false;
527  nulls[i] = false;
528  }
529  if (updateRestriction)
530  {
531  replaces[Anum_pg_operator_oprrest - 1] = true;
532  values[Anum_pg_operator_oprrest - 1] = restrictionOid;
533  }
534  if (updateJoin)
535  {
536  replaces[Anum_pg_operator_oprjoin - 1] = true;
537  values[Anum_pg_operator_oprjoin - 1] = joinOid;
538  }
539 
540  tup = heap_modify_tuple(tup, RelationGetDescr(catalog),
541  values, nulls, replaces);
542 
543  CatalogTupleUpdate(catalog, &tup->t_self, tup);
544 
545  address = makeOperatorDependencies(tup, true);
546 
547  InvokeObjectPostAlterHook(OperatorRelationId, oprId, 0);
548 
549  table_close(catalog, NoLock);
550 
551  return address;
552 }
Oid LookupOperWithArgs(ObjectWithArgs *oper, bool noError)
Definition: parse_oper.c:145
#define NIL
Definition: pg_list.h:65
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
ObjectAddress makeOperatorDependencies(HeapTuple tuple, bool isUpdate)
Definition: pg_operator.c:773
static Oid ValidateJoinEstimator(List *joinName)
Definition: operatorcmds.c:308
bool pg_oper_ownercheck(Oid oper_oid, Oid roleid)
Definition: aclchk.c:4870
int errcode(int sqlerrcode)
Definition: elog.c:698
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
#define NoLock
Definition: lockdefs.h:34
#define RowExclusiveLock
Definition: lockdefs.h:38
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
static Oid ValidateRestrictionEstimator(List *restrictionName)
Definition: operatorcmds.c:273
Node * arg
Definition: parsenodes.h:747
ObjectWithArgs * opername
Definition: parsenodes.h:3102
uintptr_t Datum
Definition: postgres.h:411
#define InvalidOid
Definition: postgres_ext.h:36
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:169
List * defGetQualifiedName(DefElem *def)
Definition: define.c:223
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
FormData_pg_operator * Form_pg_operator
Definition: pg_operator.h:83
static Datum values[MAXATTR]
Definition: bootstrap.c:166
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define elog(elevel,...)
Definition: elog.h:232
int i
#define NameStr(name)
Definition: c.h:681
char * defname
Definition: parsenodes.h:746
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
Definition: pg_list.h:50

◆ AlterOpFamily()

Oid AlterOpFamily ( AlterOpFamilyStmt stmt)

Definition at line 808 of file opclasscmds.c.

References AlterOpFamilyAdd(), AlterOpFamilyDrop(), AMNAME, AlterOpFamilyStmt::amname, IndexAmRoutine::amoptsprocnum, IndexAmRoutine::amstrategies, IndexAmRoutine::amsupport, CStringGetDatum, ereport, errcode(), errmsg(), ERROR, get_opfamily_oid(), GetIndexAmRoutineByAmId(), GETSTRUCT, HeapTupleIsValid, AlterOpFamilyStmt::isDrop, AlterOpFamilyStmt::items, AlterOpFamilyStmt::opfamilyname, ReleaseSysCache(), SearchSysCache1(), and superuser().

Referenced by ProcessUtilitySlow().

809 {
810  Oid amoid, /* our AM's oid */
811  opfamilyoid; /* oid of opfamily */
812  int maxOpNumber, /* amstrategies value */
813  optsProcNumber, /* amopclassopts value */
814  maxProcNumber; /* amsupport value */
815  HeapTuple tup;
816  Form_pg_am amform;
817  IndexAmRoutine *amroutine;
818 
819  /* Get necessary info about access method */
821  if (!HeapTupleIsValid(tup))
822  ereport(ERROR,
823  (errcode(ERRCODE_UNDEFINED_OBJECT),
824  errmsg("access method \"%s\" does not exist",
825  stmt->amname)));
826 
827  amform = (Form_pg_am) GETSTRUCT(tup);
828  amoid = amform->oid;
829  amroutine = GetIndexAmRoutineByAmId(amoid, false);
830  ReleaseSysCache(tup);
831 
832  maxOpNumber = amroutine->amstrategies;
833  /* if amstrategies is zero, just enforce that op numbers fit in int16 */
834  if (maxOpNumber <= 0)
835  maxOpNumber = SHRT_MAX;
836  maxProcNumber = amroutine->amsupport;
837  optsProcNumber = amroutine->amoptsprocnum;
838 
839  /* XXX Should we make any privilege check against the AM? */
840 
841  /* Look up the opfamily */
842  opfamilyoid = get_opfamily_oid(amoid, stmt->opfamilyname, false);
843 
844  /*
845  * Currently, we require superuser privileges to alter an opfamily.
846  *
847  * XXX re-enable NOT_USED code sections below if you remove this test.
848  */
849  if (!superuser())
850  ereport(ERROR,
851  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
852  errmsg("must be superuser to alter an operator family")));
853 
854  /*
855  * ADD and DROP cases need separate code from here on down.
856  */
857  if (stmt->isDrop)
858  AlterOpFamilyDrop(stmt, amoid, opfamilyoid,
859  maxOpNumber, maxProcNumber, stmt->items);
860  else
861  AlterOpFamilyAdd(stmt, amoid, opfamilyoid,
862  maxOpNumber, maxProcNumber, optsProcNumber,
863  stmt->items);
864 
865  return opfamilyoid;
866 }
uint16 amsupport
Definition: amapi.h:216
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
unsigned int Oid
Definition: postgres_ext.h:31
static void AlterOpFamilyDrop(AlterOpFamilyStmt *stmt, Oid amoid, Oid opfamilyoid, int maxOpNumber, int maxProcNumber, List *items)
Definition: opclasscmds.c:1021
#define ERROR
Definition: elog.h:46
IndexAmRoutine * GetIndexAmRoutineByAmId(Oid amoid, bool noerror)
Definition: amapi.c:56
#define CStringGetDatum(X)
Definition: postgres.h:622
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
static void AlterOpFamilyAdd(AlterOpFamilyStmt *stmt, Oid amoid, Oid opfamilyoid, int maxOpNumber, int maxProcNumber, int opclassOptsProcNumber, List *items)
Definition: opclasscmds.c:872
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
Oid get_opfamily_oid(Oid amID, List *opfamilyname, bool missing_ok)
Definition: opclasscmds.c:139
uint16 amstrategies
Definition: amapi.h:214
FormData_pg_am * Form_pg_am
Definition: pg_am.h:48
int errmsg(const char *fmt,...)
Definition: elog.c:909
uint16 amoptsprocnum
Definition: amapi.h:218

◆ AlterStatistics()

ObjectAddress AlterStatistics ( AlterStatsStmt stmt)

Definition at line 579 of file statscmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, Assert, CatalogTupleUpdate(), DeconstructQualifiedName(), AlterStatsStmt::defnames, ereport, errcode(), errmsg(), ERROR, get_statistics_object_oid(), GetUserId(), heap_freetuple(), heap_modify_tuple(), Int32GetDatum, InvalidObjectAddress, InvokeObjectPostAlterHook, AlterStatsStmt::missing_ok, NameListToString(), NOTICE, OBJECT_STATISTIC_EXT, ObjectAddressSet, ObjectIdGetDatum, OidIsValid, pg_statistics_object_ownercheck(), RelationGetDescr, ReleaseSysCache(), RowExclusiveLock, SearchSysCache1(), STATEXTOID, AlterStatsStmt::stxstattarget, HeapTupleData::t_self, table_close(), table_open(), and WARNING.

Referenced by ProcessUtilitySlow().

580 {
581  Relation rel;
582  Oid stxoid;
583  HeapTuple oldtup;
584  HeapTuple newtup;
585  Datum repl_val[Natts_pg_statistic_ext];
586  bool repl_null[Natts_pg_statistic_ext];
587  bool repl_repl[Natts_pg_statistic_ext];
588  ObjectAddress address;
589  int newtarget = stmt->stxstattarget;
590 
591  /* Limit statistics target to a sane range */
592  if (newtarget < -1)
593  {
594  ereport(ERROR,
595  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
596  errmsg("statistics target %d is too low",
597  newtarget)));
598  }
599  else if (newtarget > 10000)
600  {
601  newtarget = 10000;
603  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
604  errmsg("lowering statistics target to %d",
605  newtarget)));
606  }
607 
608  /* lookup OID of the statistics object */
609  stxoid = get_statistics_object_oid(stmt->defnames, stmt->missing_ok);
610 
611  /*
612  * If we got here and the OID is not valid, it means the statistics does
613  * not exist, but the command specified IF EXISTS. So report this as a
614  * simple NOTICE and we're done.
615  */
616  if (!OidIsValid(stxoid))
617  {
618  char *schemaname;
619  char *statname;
620 
621  Assert(stmt->missing_ok);
622 
623  DeconstructQualifiedName(stmt->defnames, &schemaname, &statname);
624 
625  if (schemaname)
626  ereport(NOTICE,
627  (errmsg("statistics object \"%s.%s\" does not exist, skipping",
628  schemaname, statname)));
629  else
630  ereport(NOTICE,
631  (errmsg("statistics object \"%s\" does not exist, skipping",
632  statname)));
633 
634  return InvalidObjectAddress;
635  }
636 
637  /* Search pg_statistic_ext */
638  rel = table_open(StatisticExtRelationId, RowExclusiveLock);
639 
640  oldtup = SearchSysCache1(STATEXTOID, ObjectIdGetDatum(stxoid));
641 
642  /* Must be owner of the existing statistics object */
645  NameListToString(stmt->defnames));
646 
647  /* Build new tuple. */
648  memset(repl_val, 0, sizeof(repl_val));
649  memset(repl_null, false, sizeof(repl_null));
650  memset(repl_repl, false, sizeof(repl_repl));
651 
652  /* replace the stxstattarget column */
653  repl_repl[Anum_pg_statistic_ext_stxstattarget - 1] = true;
654  repl_val[Anum_pg_statistic_ext_stxstattarget - 1] = Int32GetDatum(newtarget);
655 
656  newtup = heap_modify_tuple(oldtup, RelationGetDescr(rel),
657  repl_val, repl_null, repl_repl);
658 
659  /* Update system catalog. */
660  CatalogTupleUpdate(rel, &newtup->t_self, newtup);
661 
662  InvokeObjectPostAlterHook(StatisticExtRelationId, stxoid, 0);
663 
664  ObjectAddressSet(address, StatisticExtRelationId, stxoid);
665 
666  /*
667  * NOTE: because we only support altering the statistics target, not the
668  * other fields, there is no need to update dependencies.
669  */
670 
671  heap_freetuple(newtup);
672  ReleaseSysCache(oldtup);
673 
675 
676  return address;
677 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
int errcode(int sqlerrcode)
Definition: elog.c:698
void DeconstructQualifiedName(List *names, char **nspname_p, char **objname_p)
Definition: namespace.c:2854
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
Oid get_statistics_object_oid(List *names, bool missing_ok)
Definition: namespace.c:2223
#define RowExclusiveLock
Definition: lockdefs.h:38
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
#define WARNING
Definition: elog.h:40
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
char * NameListToString(List *names)
Definition: namespace.c:3147
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
#define ereport(elevel,...)
Definition: elog.h:157
#define NOTICE
Definition: elog.h:37
#define Assert(condition)
Definition: c.h:804
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define Int32GetDatum(X)
Definition: postgres.h:523
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
bool pg_statistics_object_ownercheck(Oid stat_oid, Oid roleid)
Definition: aclchk.c:5408

◆ AlterTSConfiguration()

ObjectAddress AlterTSConfiguration ( AlterTSConfigurationStmt stmt)

Definition at line 1109 of file tsearchcmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, AlterTSConfigurationStmt::cfgname, AlterTSConfigurationStmt::dicts, DropConfigurationMapping(), ereport, errcode(), errmsg(), ERROR, GETSTRUCT, GetTSConfigTuple(), GetUserId(), HeapTupleIsValid, InvokeObjectPostAlterHook, makeConfigurationDependencies(), MakeConfigurationMapping(), NameListToString(), OBJECT_TSCONFIGURATION, ObjectAddressSet, pg_ts_config_ownercheck(), ReleaseSysCache(), RowExclusiveLock, table_close(), table_open(), and AlterTSConfigurationStmt::tokentype.

Referenced by ProcessUtilitySlow().

1110 {
1111  HeapTuple tup;
1112  Oid cfgId;
1113  Relation relMap;
1114  ObjectAddress address;
1115 
1116  /* Find the configuration */
1117  tup = GetTSConfigTuple(stmt->cfgname);
1118  if (!HeapTupleIsValid(tup))
1119  ereport(ERROR,
1120  (errcode(ERRCODE_UNDEFINED_OBJECT),
1121  errmsg("text search configuration \"%s\" does not exist",
1122  NameListToString(stmt->cfgname))));
1123 
1124  cfgId = ((Form_pg_ts_config) GETSTRUCT(tup))->oid;
1125 
1126  /* must be owner */
1127  if (!pg_ts_config_ownercheck(cfgId, GetUserId()))
1129  NameListToString(stmt->cfgname));
1130 
1131  relMap = table_open(TSConfigMapRelationId, RowExclusiveLock);
1132 
1133  /* Add or drop mappings */
1134  if (stmt->dicts)
1135  MakeConfigurationMapping(stmt, tup, relMap);
1136  else if (stmt->tokentype)
1137  DropConfigurationMapping(stmt, tup, relMap);
1138 
1139  /* Update dependencies */
1140  makeConfigurationDependencies(tup, true, relMap);
1141 
1142  InvokeObjectPostAlterHook(TSConfigRelationId, cfgId, 0);
1143 
1144  ObjectAddressSet(address, TSConfigRelationId, cfgId);
1145 
1146  table_close(relMap, RowExclusiveLock);
1147 
1148  ReleaseSysCache(tup);
1149 
1150  return address;
1151 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
FormData_pg_ts_config * Form_pg_ts_config
Definition: pg_ts_config.h:48
Oid GetUserId(void)
Definition: miscinit.c:478
bool pg_ts_config_ownercheck(Oid cfg_oid, Oid roleid)
Definition: aclchk.c:5128
static ObjectAddress makeConfigurationDependencies(HeapTuple tuple, bool removeOld, Relation mapRel)
Definition: tsearchcmds.c:806
int errcode(int sqlerrcode)
Definition: elog.c:698
unsigned int Oid
Definition: postgres_ext.h:31
static void DropConfigurationMapping(AlterTSConfigurationStmt *stmt, HeapTuple tup, Relation relMap)
Definition: tsearchcmds.c:1376
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
static HeapTuple GetTSConfigTuple(List *names)
Definition: tsearchcmds.c:781
char * NameListToString(List *names)
Definition: namespace.c:3147
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
static void MakeConfigurationMapping(AlterTSConfigurationStmt *stmt, HeapTuple tup, Relation relMap)
Definition: tsearchcmds.c:1212

◆ AlterTSDictionary()

ObjectAddress AlterTSDictionary ( AlterTSDictionaryStmt stmt)

Definition at line 487 of file tsearchcmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, DefElem::arg, CatalogTupleUpdate(), DefElem::defname, deserialize_deflist(), AlterTSDictionaryStmt::dictname, elog, ERROR, foreach_delete_current, get_ts_dict_oid(), GETSTRUCT, GetUserId(), heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, InvokeObjectPostAlterHook, lappend(), lfirst, NameListToString(), NIL, OBJECT_TSDICTIONARY, ObjectAddressSet, ObjectIdGetDatum, AlterTSDictionaryStmt::options, pg_ts_dict_ownercheck(), PointerGetDatum, RelationGetDescr, ReleaseSysCache(), RowExclusiveLock, SearchSysCache1(), serialize_deflist(), SysCacheGetAttr(), HeapTupleData::t_self, table_close(), table_open(), TSDICTOID, and verify_dictoptions().

Referenced by ProcessUtilitySlow().

488 {
489  HeapTuple tup,
490  newtup;
491  Relation rel;
492  Oid dictId;
493  ListCell *pl;
494  List *dictoptions;
495  Datum opt;
496  bool isnull;
497  Datum repl_val[Natts_pg_ts_dict];
498  bool repl_null[Natts_pg_ts_dict];
499  bool repl_repl[Natts_pg_ts_dict];
500  ObjectAddress address;
501 
502  dictId = get_ts_dict_oid(stmt->dictname, false);
503 
504  rel = table_open(TSDictionaryRelationId, RowExclusiveLock);
505 
507 
508  if (!HeapTupleIsValid(tup))
509  elog(ERROR, "cache lookup failed for text search dictionary %u",
510  dictId);
511 
512  /* must be owner */
513  if (!pg_ts_dict_ownercheck(dictId, GetUserId()))
515  NameListToString(stmt->dictname));
516 
517  /* deserialize the existing set of options */
518  opt = SysCacheGetAttr(TSDICTOID, tup,
519  Anum_pg_ts_dict_dictinitoption,
520  &isnull);
521  if (isnull)
522  dictoptions = NIL;
523  else
524  dictoptions = deserialize_deflist(opt);
525 
526  /*
527  * Modify the options list as per specified changes
528  */
529  foreach(pl, stmt->options)
530  {
531  DefElem *defel = (DefElem *) lfirst(pl);
532  ListCell *cell;
533 
534  /*
535  * Remove any matches ...
536  */
537  foreach(cell, dictoptions)
538  {
539  DefElem *oldel = (DefElem *) lfirst(cell);
540 
541  if (strcmp(oldel->defname, defel->defname) == 0)
542  dictoptions = foreach_delete_current(dictoptions, cell);
543  }
544 
545  /*
546  * and add new value if it's got one
547  */
548  if (defel->arg)
549  dictoptions = lappend(dictoptions, defel);
550  }
551 
552  /*
553  * Validate
554  */
555  verify_dictoptions(((Form_pg_ts_dict) GETSTRUCT(tup))->dicttemplate,
556  dictoptions);
557 
558  /*
559  * Looks good, update
560  */
561  memset(repl_val, 0, sizeof(repl_val));
562  memset(repl_null, false, sizeof(repl_null));
563  memset(repl_repl, false, sizeof(repl_repl));
564 
565  if (dictoptions)
566  repl_val[Anum_pg_ts_dict_dictinitoption - 1] =
567  PointerGetDatum(serialize_deflist(dictoptions));
568  else
569  repl_null[Anum_pg_ts_dict_dictinitoption - 1] = true;
570  repl_repl[Anum_pg_ts_dict_dictinitoption - 1] = true;
571 
572  newtup = heap_modify_tuple(tup, RelationGetDescr(rel),
573  repl_val, repl_null, repl_repl);
574 
575  CatalogTupleUpdate(rel, &newtup->t_self, newtup);
576 
577  InvokeObjectPostAlterHook(TSDictionaryRelationId, dictId, 0);
578 
579  ObjectAddressSet(address, TSDictionaryRelationId, dictId);
580 
581  /*
582  * NOTE: because we only support altering the options, not the template,
583  * there is no need to update dependencies. This might have to change if
584  * the options ever reference inside-the-database objects.
585  */
586 
587  heap_freetuple(newtup);
588  ReleaseSysCache(tup);
589 
591 
592  return address;
593 }
#define NIL
Definition: pg_list.h:65
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
bool pg_ts_dict_ownercheck(Oid dict_oid, Oid roleid)
Definition: aclchk.c:5101
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
#define PointerGetDatum(X)
Definition: postgres.h:600
List * deserialize_deflist(Datum txt)
Definition: tsearchcmds.c:1510
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define foreach_delete_current(lst, cell)
Definition: pg_list.h:369
Oid get_ts_dict_oid(List *names, bool missing_ok)
Definition: namespace.c:2471
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
FormData_pg_ts_dict * Form_pg_ts_dict
Definition: pg_ts_dict.h:52
#define RowExclusiveLock
Definition: lockdefs.h:38
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
Node * arg
Definition: parsenodes.h:747
List * lappend(List *list, void *datum)
Definition: list.c:336
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
char * NameListToString(List *names)
Definition: namespace.c:3147
text * serialize_deflist(List *deflist)
Definition: tsearchcmds.c:1454
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:169
static void verify_dictoptions(Oid tmplId, List *dictoptions)
Definition: tsearchcmds.c:336
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define elog(elevel,...)
Definition: elog.h:232
char * defname
Definition: parsenodes.h:746
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
Definition: pg_list.h:50

◆ AlterUserMapping()

ObjectAddress AlterUserMapping ( AlterUserMappingStmt stmt)

Definition at line 1213 of file foreigncmds.c.

References ACL_ID_PUBLIC, CatalogTupleUpdate(), DatumGetPointer, elog, ereport, errcode(), errmsg(), ERROR, ForeignServer::fdwid, ForeignDataWrapper::fdwvalidator, get_rolespec_oid(), GetForeignDataWrapper(), GetForeignServerByName(), GetSysCacheOid2, heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, InvokeObjectPostAlterHook, MappingUserName, ObjectAddressSet, ObjectIdGetDatum, OidIsValid, AlterUserMappingStmt::options, PointerGetDatum, PointerIsValid, RelationGetDescr, ROLESPEC_PUBLIC, RoleSpec::roletype, RowExclusiveLock, SearchSysCacheCopy1, ForeignServer::serverid, AlterUserMappingStmt::servername, SysCacheGetAttr(), HeapTupleData::t_self, table_close(), table_open(), transformGenericOptions(), AlterUserMappingStmt::user, user_mapping_ddl_aclcheck(), and USERMAPPINGOID.

Referenced by ProcessUtilitySlow().

1214 {
1215  Relation rel;
1216  HeapTuple tp;
1217  Datum repl_val[Natts_pg_user_mapping];
1218  bool repl_null[Natts_pg_user_mapping];
1219  bool repl_repl[Natts_pg_user_mapping];
1220  Oid useId;
1221  Oid umId;
1222  ForeignServer *srv;
1223  ObjectAddress address;
1224  RoleSpec *role = (RoleSpec *) stmt->user;
1225 
1226  rel = table_open(UserMappingRelationId, RowExclusiveLock);
1227 
1228  if (role->roletype == ROLESPEC_PUBLIC)
1229  useId = ACL_ID_PUBLIC;
1230  else
1231  useId = get_rolespec_oid(stmt->user, false);
1232 
1233  srv = GetForeignServerByName(stmt->servername, false);
1234 
1235  umId = GetSysCacheOid2(USERMAPPINGUSERSERVER, Anum_pg_user_mapping_oid,
1236  ObjectIdGetDatum(useId),
1237  ObjectIdGetDatum(srv->serverid));
1238  if (!OidIsValid(umId))
1239  ereport(ERROR,
1240  (errcode(ERRCODE_UNDEFINED_OBJECT),
1241  errmsg("user mapping for \"%s\" does not exist for server \"%s\"",
1242  MappingUserName(useId), stmt->servername)));
1243 
1244  user_mapping_ddl_aclcheck(useId, srv->serverid, stmt->servername);
1245 
1247 
1248  if (!HeapTupleIsValid(tp))
1249  elog(ERROR, "cache lookup failed for user mapping %u", umId);
1250 
1251  memset(repl_val, 0, sizeof(repl_val));
1252  memset(repl_null, false, sizeof(repl_null));
1253  memset(repl_repl, false, sizeof(repl_repl));
1254 
1255  if (stmt->options)
1256  {
1257  ForeignDataWrapper *fdw;
1258  Datum datum;
1259  bool isnull;
1260 
1261  /*
1262  * Process the options.
1263  */
1264 
1265  fdw = GetForeignDataWrapper(srv->fdwid);
1266 
1267  datum = SysCacheGetAttr(USERMAPPINGUSERSERVER,
1268  tp,
1269  Anum_pg_user_mapping_umoptions,
1270  &isnull);
1271  if (isnull)
1272  datum = PointerGetDatum(NULL);
1273 
1274  /* Prepare the options array */
1275  datum = transformGenericOptions(UserMappingRelationId,
1276  datum,
1277  stmt->options,
1278  fdw->fdwvalidator);
1279 
1280  if (PointerIsValid(DatumGetPointer(datum)))
1281  repl_val[Anum_pg_user_mapping_umoptions - 1] = datum;
1282  else
1283  repl_null[Anum_pg_user_mapping_umoptions - 1] = true;
1284 
1285  repl_repl[Anum_pg_user_mapping_umoptions - 1] = true;
1286  }
1287 
1288  /* Everything looks good - update the tuple */
1289  tp = heap_modify_tuple(tp, RelationGetDescr(rel),
1290  repl_val, repl_null, repl_repl);
1291 
1292  CatalogTupleUpdate(rel, &tp->t_self, tp);
1293 
1294  InvokeObjectPostAlterHook(UserMappingRelationId,
1295  umId, 0);
1296 
1297  ObjectAddressSet(address, UserMappingRelationId, umId);
1298 
1299  heap_freetuple(tp);
1300 
1302 
1303  return address;
1304 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define RelationGetDescr(relation)
Definition: rel.h:503
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
int errcode(int sqlerrcode)
Definition: elog.c:698
static void user_mapping_ddl_aclcheck(Oid umuserid, Oid serverid, const char *servername)
Definition: foreigncmds.c:1066
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
ForeignDataWrapper * GetForeignDataWrapper(Oid fdwid)
Definition: foreign.c:35
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
ForeignServer * GetForeignServerByName(const char *srvname, bool missing_ok)
Definition: foreign.c:180
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
uintptr_t Datum
Definition: postgres.h:411
RoleSpecType roletype
Definition: parsenodes.h:339
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
Oid get_rolespec_oid(const RoleSpec *role, bool missing_ok)
Definition: acl.c:5128
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define GetSysCacheOid2(cacheId, oidcol, key1, key2)
Definition: syscache.h:195
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define DatumGetPointer(X)
Definition: postgres.h:593
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:175
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define elog(elevel,...)
Definition: elog.h:232
#define ACL_ID_PUBLIC
Definition: acl.h:46
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
#define PointerIsValid(pointer)
Definition: c.h:698
Oid serverid
Definition: foreign.h:36
#define MappingUserName(userid)
Definition: foreign.h:20

◆ CallStmtResultDesc()

TupleDesc CallStmtResultDesc ( CallStmt stmt)

Definition at line 2340 of file functioncmds.c.

References build_function_result_tupdesc_t(), elog, ERROR, CallStmt::funcexpr, FuncExpr::funcid, HeapTupleIsValid, ObjectIdGetDatum, PROCOID, ReleaseSysCache(), and SearchSysCache1().

Referenced by UtilityTupleDescriptor().

2341 {
2342  FuncExpr *fexpr;
2343  HeapTuple tuple;
2344  TupleDesc tupdesc;
2345 
2346  fexpr = stmt->funcexpr;
2347 
2348  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(fexpr->funcid));
2349  if (!HeapTupleIsValid(tuple))
2350  elog(ERROR, "cache lookup failed for procedure %u", fexpr->funcid);
2351 
2352  tupdesc = build_function_result_tupdesc_t(tuple);
2353 
2354  ReleaseSysCache(tuple);
2355 
2356  return tupdesc;
2357 }
FuncExpr * funcexpr
Definition: parsenodes.h:3026
TupleDesc build_function_result_tupdesc_t(HeapTuple procTuple)
Definition: funcapi.c:1602
Oid funcid
Definition: primnodes.h:495
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define elog(elevel,...)
Definition: elog.h:232

◆ CheckIndexCompatible()

bool CheckIndexCompatible ( Oid  oldId,
const char *  accessMethodName,
List attributeList,
List exclusionOpNames 
)

Definition at line 164 of file indexcmds.c.

References AccessShareLock, IndexAmRoutine::amcanorder, AMNAME, Assert, CompareOpclassOptions(), ComputeIndexAttrs(), DatumGetPointer, elog, ereport, errcode(), errmsg(), ERROR, get_opclass_input_type(), GetIndexAmRoutine(), GETSTRUCT, heap_attisnull(), HeapTupleIsValid, i, IndexInfo::ii_ExclusionOps, IndexInfo::ii_OpclassOptions, index_close(), INDEX_MAX_KEYS, index_open(), IndexGetRelation(), INDEXRELID, list_length(), makeIndexInfo(), NIL, NoLock, ObjectIdGetDatum, op_input_types(), palloc(), pfree(), PointerGetDatum, RelationData::rd_att, RelationGetExclusionInfo(), RelationGetIndexRawAttOptions(), ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttr(), TupleDescAttr, and oidvector::values.

Referenced by TryReuseIndex().

168 {
169  bool isconstraint;
170  Oid *typeObjectId;
171  Oid *collationObjectId;
172  Oid *classObjectId;
173  Oid accessMethodId;
174  Oid relationId;
175  HeapTuple tuple;
176  Form_pg_index indexForm;
177  Form_pg_am accessMethodForm;
178  IndexAmRoutine *amRoutine;
179  bool amcanorder;
180  int16 *coloptions;
181  IndexInfo *indexInfo;
182  int numberOfAttributes;
183  int old_natts;
184  bool isnull;
185  bool ret = true;
186  oidvector *old_indclass;
187  oidvector *old_indcollation;
188  Relation irel;
189  int i;
190  Datum d;
191 
192  /* Caller should already have the relation locked in some way. */
193  relationId = IndexGetRelation(oldId, false);
194 
195  /*
196  * We can pretend isconstraint = false unconditionally. It only serves to
197  * decide the text of an error message that should never happen for us.
198  */
199  isconstraint = false;
200 
201  numberOfAttributes = list_length(attributeList);
202  Assert(numberOfAttributes > 0);
203  Assert(numberOfAttributes <= INDEX_MAX_KEYS);
204 
205  /* look up the access method */
206  tuple = SearchSysCache1(AMNAME, PointerGetDatum(accessMethodName));
207  if (!HeapTupleIsValid(tuple))
208  ereport(ERROR,
209  (errcode(ERRCODE_UNDEFINED_OBJECT),
210  errmsg("access method \"%s\" does not exist",
211  accessMethodName)));
212  accessMethodForm = (Form_pg_am) GETSTRUCT(tuple);
213  accessMethodId = accessMethodForm->oid;
214  amRoutine = GetIndexAmRoutine(accessMethodForm->amhandler);
215  ReleaseSysCache(tuple);
216 
217  amcanorder = amRoutine->amcanorder;
218 
219  /*
220  * Compute the operator classes, collations, and exclusion operators for
221  * the new index, so we can test whether it's compatible with the existing
222  * one. Note that ComputeIndexAttrs might fail here, but that's OK:
223  * DefineIndex would have called this function with the same arguments
224  * later on, and it would have failed then anyway. Our attributeList
225  * contains only key attributes, thus we're filling ii_NumIndexAttrs and
226  * ii_NumIndexKeyAttrs with same value.
227  */
228  indexInfo = makeIndexInfo(numberOfAttributes, numberOfAttributes,
229  accessMethodId, NIL, NIL, false, false, false);
230  typeObjectId = (Oid *) palloc(numberOfAttributes * sizeof(Oid));
231  collationObjectId = (Oid *) palloc(numberOfAttributes * sizeof(Oid));
232  classObjectId = (Oid *) palloc(numberOfAttributes * sizeof(Oid));
233  coloptions = (int16 *) palloc(numberOfAttributes * sizeof(int16));
234  ComputeIndexAttrs(indexInfo,
235  typeObjectId, collationObjectId, classObjectId,
236  coloptions, attributeList,
237  exclusionOpNames, relationId,
238  accessMethodName, accessMethodId,
239  amcanorder, isconstraint);
240 
241 
242  /* Get the soon-obsolete pg_index tuple. */
244  if (!HeapTupleIsValid(tuple))
245  elog(ERROR, "cache lookup failed for index %u", oldId);
246  indexForm = (Form_pg_index) GETSTRUCT(tuple);
247 
248  /*
249  * We don't assess expressions or predicates; assume incompatibility.
250  * Also, if the index is invalid for any reason, treat it as incompatible.
251  */
252  if (!(heap_attisnull(tuple, Anum_pg_index_indpred, NULL) &&
253  heap_attisnull(tuple, Anum_pg_index_indexprs, NULL) &&
254  indexForm->indisvalid))
255  {
256  ReleaseSysCache(tuple);
257  return false;
258  }
259 
260  /* Any change in operator class or collation breaks compatibility. */
261  old_natts = indexForm->indnkeyatts;
262  Assert(old_natts == numberOfAttributes);
263 
264  d = SysCacheGetAttr(INDEXRELID, tuple, Anum_pg_index_indcollation, &isnull);
265  Assert(!isnull);
266  old_indcollation = (oidvector *) DatumGetPointer(d);
267 
268  d = SysCacheGetAttr(INDEXRELID, tuple, Anum_pg_index_indclass, &isnull);
269  Assert(!isnull);
270  old_indclass = (oidvector *) DatumGetPointer(d);
271 
272  ret = (memcmp(old_indclass->values, classObjectId,
273  old_natts * sizeof(Oid)) == 0 &&
274  memcmp(old_indcollation->values, collationObjectId,
275  old_natts * sizeof(Oid)) == 0);
276 
277  ReleaseSysCache(tuple);
278 
279  if (!ret)
280  return false;
281 
282  /* For polymorphic opcintype, column type changes break compatibility. */
283  irel = index_open(oldId, AccessShareLock); /* caller probably has a lock */
284  for (i = 0; i < old_natts; i++)
285  {
286  if (IsPolymorphicType(get_opclass_input_type(classObjectId[i])) &&
287  TupleDescAttr(irel->rd_att, i)->atttypid != typeObjectId[i])
288  {
289  ret = false;
290  break;
291  }
292  }
293 
294  /* Any change in opclass options break compatibility. */
295  if (ret)
296  {
297  Datum *opclassOptions = RelationGetIndexRawAttOptions(irel);
298 
299  ret = CompareOpclassOptions(opclassOptions,
300  indexInfo->ii_OpclassOptions, old_natts);
301 
302  if (opclassOptions)
303  pfree(opclassOptions);
304  }
305 
306  /* Any change in exclusion operator selections breaks compatibility. */
307  if (ret && indexInfo->ii_ExclusionOps != NULL)
308  {
309  Oid *old_operators,
310  *old_procs;
311  uint16 *old_strats;
312 
313  RelationGetExclusionInfo(irel, &old_operators, &old_procs, &old_strats);
314  ret = memcmp(old_operators, indexInfo->ii_ExclusionOps,
315  old_natts * sizeof(Oid)) == 0;
316 
317  /* Require an exact input type match for polymorphic operators. */
318  if (ret)
319  {
320  for (i = 0; i < old_natts && ret; i++)
321  {
322  Oid left,
323  right;
324 
325  op_input_types(indexInfo->ii_ExclusionOps[i], &left, &right);
326  if ((IsPolymorphicType(left) || IsPolymorphicType(right)) &&
327  TupleDescAttr(irel->rd_att, i)->atttypid != typeObjectId[i])
328  {
329  ret = false;
330  break;
331  }
332  }
333  }
334  }
335 
336  index_close(irel, NoLock);
337  return ret;
338 }
signed short int16
Definition: c.h:428
#define NIL
Definition: pg_list.h:65
Definition: c.h:660
Oid IndexGetRelation(Oid indexId, bool missing_ok)
Definition: index.c:3475
void RelationGetExclusionInfo(Relation indexRelation, Oid **operators, Oid **procs, uint16 **strategies)
Definition: relcache.c:5321
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define PointerGetDatum(X)
Definition: postgres.h:600
#define TupleDescAttr(tupdesc, i)
Definition: tupdesc.h:92
#define AccessShareLock
Definition: lockdefs.h:36
int errcode(int sqlerrcode)
Definition: elog.c:698
static bool CompareOpclassOptions(Datum *opts1, Datum *opts2, int natts)
Definition: indexcmds.c:347
bool heap_attisnull(HeapTuple tup, int attnum, TupleDesc tupleDesc)
Definition: heaptuple.c:359
unsigned int Oid
Definition: postgres_ext.h:31
unsigned short uint16
Definition: c.h:440
void pfree(void *pointer)
Definition: mcxt.c:1169
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
IndexAmRoutine * GetIndexAmRoutine(Oid amhandler)
Definition: amapi.c:33
#define NoLock
Definition: lockdefs.h:34
Oid values[FLEXIBLE_ARRAY_MEMBER]
Definition: c.h:668
void op_input_types(Oid opno, Oid *lefttype, Oid *righttype)
Definition: lsyscache.c:1329
IndexInfo * makeIndexInfo(int numattrs, int numkeyattrs, Oid amoid, List *expressions, List *predicates, bool unique, bool isready, bool concurrent)
Definition: makefuncs.c:743
Datum * RelationGetIndexRawAttOptions(Relation indexrel)
Definition: relcache.c:5529
FormData_pg_index * Form_pg_index
Definition: pg_index.h:69
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1388
TupleDesc rd_att
Definition: rel.h:110
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define Assert(condition)
Definition: c.h:804
#define INDEX_MAX_KEYS
static int list_length(const List *l)
Definition: pg_list.h:149
bool amcanorder
Definition: amapi.h:220
void index_close(Relation relation, LOCKMODE lockmode)
Definition: indexam.c:158
#define DatumGetPointer(X)
Definition: postgres.h:593
Oid * ii_ExclusionOps
Definition: execnodes.h:165
FormData_pg_am * Form_pg_am
Definition: pg_am.h:48
void * palloc(Size size)
Definition: mcxt.c:1062
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define elog(elevel,...)
Definition: elog.h:232
int i
static void ComputeIndexAttrs(IndexInfo *indexInfo, Oid *typeOidP, Oid *collationOidP, Oid *classOidP, int16 *colOptionP, List *attList, List *exclusionOpNames, Oid relId, const char *accessMethodName, Oid accessMethodId, bool amcanorder, bool isconstraint)
Definition: indexcmds.c:1682
Relation index_open(Oid relationId, LOCKMODE lockmode)
Definition: indexam.c:132
Datum * ii_OpclassOptions
Definition: execnodes.h:171
Oid get_opclass_input_type(Oid opclass)
Definition: lsyscache.c:1205

◆ ChooseRelationName()

char* ChooseRelationName ( const char *  name1,
const char *  name2,
const char *  label,
Oid  namespaceid,
bool  isconstraint 
)

Definition at line 2284 of file indexcmds.c.

References ConstraintNameExists(), get_relname_relid(), makeObjectName(), NAMEDATALEN, OidIsValid, pfree(), relname, snprintf, and strlcpy().

Referenced by ChooseIndexName(), generateSerialExtraStmts(), and ReindexRelationConcurrently().

2287 {
2288  int pass = 0;
2289  char *relname = NULL;
2290  char modlabel[NAMEDATALEN];
2291 
2292  /* try the unmodified label first */
2293  strlcpy(modlabel, label, sizeof(modlabel));
2294 
2295  for (;;)
2296  {
2297  relname = makeObjectName(name1, name2, modlabel);
2298 
2299  if (!OidIsValid(get_relname_relid(relname, namespaceid)))
2300  {
2301  if (!isconstraint ||
2302  !ConstraintNameExists(relname, namespaceid))
2303  break;
2304  }
2305 
2306  /* found a conflict, so try a new name component */
2307  pfree(relname);
2308  snprintf(modlabel, sizeof(modlabel), "%s%d", label, ++pass);
2309  }
2310 
2311  return relname;
2312 }
bool ConstraintNameExists(const char *conname, Oid namespaceid)
NameData relname
Definition: pg_class.h:38
#define OidIsValid(objectId)
Definition: c.h:710
char * makeObjectName(const char *name1, const char *name2, const char *label)
Definition: indexcmds.c:2198
#define NAMEDATALEN
void pfree(void *pointer)
Definition: mcxt.c:1169
Oid get_relname_relid(const char *relname, Oid relnamespace)
Definition: lsyscache.c:1856
static char * label
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
#define snprintf
Definition: port.h:216

◆ CreateAccessMethod()

ObjectAddress CreateAccessMethod ( CreateAmStmt stmt)

Definition at line 43 of file amcmds.c.

References AMNAME, CreateAmStmt::amname, CreateAmStmt::amtype, CatalogTupleInsert(), CharGetDatum, ObjectAddress::classId, CStringGetDatum, DEPENDENCY_NORMAL, DirectFunctionCall1, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errhint(), errmsg(), ERROR, GetNewOidWithIndex(), GetSysCacheOid1, CreateAmStmt::handler_name, heap_form_tuple(), heap_freetuple(), InvokeObjectPostCreateHook, lookup_am_handler_func(), namein(), ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, recordDependencyOn(), recordDependencyOnCurrentExtension(), RelationGetDescr, RowExclusiveLock, superuser(), table_close(), table_open(), and values.

Referenced by ProcessUtilitySlow().

44 {
45  Relation rel;
46  ObjectAddress myself;
47  ObjectAddress referenced;
48  Oid amoid;
49  Oid amhandler;
50  bool nulls[Natts_pg_am];
51  Datum values[Natts_pg_am];
52  HeapTuple tup;
53 
54  rel = table_open(AccessMethodRelationId, RowExclusiveLock);
55 
56  /* Must be super user */
57  if (!superuser())
58  ereport(ERROR,
59  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
60  errmsg("permission denied to create access method \"%s\"",
61  stmt->amname),
62  errhint("Must be superuser to create an access method.")));
63 
64  /* Check if name is used */
65  amoid = GetSysCacheOid1(AMNAME, Anum_pg_am_oid,
66  CStringGetDatum(stmt->amname));
67  if (OidIsValid(amoid))
68  {
69  ereport(ERROR,
71  errmsg("access method \"%s\" already exists",
72  stmt->amname)));
73  }
74 
75  /*
76  * Get the handler function oid, verifying the AM type while at it.
77  */
78  amhandler = lookup_am_handler_func(stmt->handler_name, stmt->amtype);
79 
80  /*
81  * Insert tuple into pg_am.
82  */
83  memset(values, 0, sizeof(values));
84  memset(nulls, false, sizeof(nulls));
85 
86  amoid = GetNewOidWithIndex(rel, AmOidIndexId, Anum_pg_am_oid);
87  values[Anum_pg_am_oid - 1] = ObjectIdGetDatum(amoid);
88  values[Anum_pg_am_amname - 1] =
90  values[Anum_pg_am_amhandler - 1] = ObjectIdGetDatum(amhandler);
91  values[Anum_pg_am_amtype - 1] = CharGetDatum(stmt->amtype);
92 
93  tup = heap_form_tuple(RelationGetDescr(rel), values, nulls);
94 
95  CatalogTupleInsert(rel, tup);
96  heap_freetuple(tup);
97 
98  myself.classId = AccessMethodRelationId;
99  myself.objectId = amoid;
100  myself.objectSubId = 0;
101 
102  /* Record dependency on handler function */
103  referenced.classId = ProcedureRelationId;
104  referenced.objectId = amhandler;
105  referenced.objectSubId = 0;
106 
107  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
108 
109  recordDependencyOnCurrentExtension(&myself, false);
110 
111  InvokeObjectPostCreateHook(AccessMethodRelationId, amoid, 0);
112 
114 
115  return myself;
116 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
Datum namein(PG_FUNCTION_ARGS)
Definition: name.c:48
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
int errhint(const char *fmt,...)
Definition: elog.c:1156
static Oid lookup_am_handler_func(List *handler_name, char amtype)
Definition: amcmds.c:234
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
#define RelationGetDescr(relation)
Definition: rel.h:503
#define GetSysCacheOid1(cacheId, oidcol, key1)
Definition: syscache.h:193
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
#define DirectFunctionCall1(func, arg1)
Definition: fmgr.h:626
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
char * amname
Definition: parsenodes.h:2517
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
uintptr_t Datum
Definition: postgres.h:411
List * handler_name
Definition: parsenodes.h:2518
#define ereport(elevel,...)
Definition: elog.h:157
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:184
#define CharGetDatum(X)
Definition: postgres.h:460
static Datum values[MAXATTR]
Definition: bootstrap.c:166
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221

◆ CreateCast()

ObjectAddress CreateCast ( CreateCastStmt stmt)

Definition at line 1525 of file functioncmds.c.

References ACL_USAGE, aclcheck_error_type(), ACLCHECK_OK, CastCreate(), COERCION_ASSIGNMENT, COERCION_EXPLICIT, COERCION_IMPLICIT, CreateCastStmt::context, DEPENDENCY_NORMAL, elog, ereport, errcode(), errmsg(), ERROR, format_type_be(), CreateCastStmt::func, get_element_type(), get_typlenbyvalalign(), get_typtype(), GETSTRUCT, GetUserId(), HeapTupleIsValid, CreateCastStmt::inout, InvalidOid, IsBinaryCoercible(), LookupFuncWithArgs(), OBJECT_FUNCTION, ObjectIdGetDatum, OidIsValid, pg_type_aclcheck(), pg_type_ownercheck(), PROCOID, ReleaseSysCache(), SearchSysCache1(), CreateCastStmt::sourcetype, superuser(), CreateCastStmt::targettype, TypeNameToString(), typenameTypeId(), and WARNING.

Referenced by ProcessUtilitySlow().

1526 {
1527  Oid sourcetypeid;
1528  Oid targettypeid;
1529  char sourcetyptype;
1530  char targettyptype;
1531  Oid funcid;
1532  int nargs;
1533  char castcontext;
1534  char castmethod;
1535  HeapTuple tuple;
1536  AclResult aclresult;
1537  ObjectAddress myself;
1538 
1539  sourcetypeid = typenameTypeId(NULL, stmt->sourcetype);
1540  targettypeid = typenameTypeId(NULL, stmt->targettype);
1541  sourcetyptype = get_typtype(sourcetypeid);
1542  targettyptype = get_typtype(targettypeid);
1543 
1544  /* No pseudo-types allowed */
1545  if (sourcetyptype == TYPTYPE_PSEUDO)
1546  ereport(ERROR,
1547  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1548  errmsg("source data type %s is a pseudo-type",
1549  TypeNameToString(stmt->sourcetype))));
1550 
1551  if (targettyptype == TYPTYPE_PSEUDO)
1552  ereport(ERROR,
1553  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1554  errmsg("target data type %s is a pseudo-type",
1555  TypeNameToString(stmt->targettype))));
1556 
1557  /* Permission check */
1558  if (!pg_type_ownercheck(sourcetypeid, GetUserId())
1559  && !pg_type_ownercheck(targettypeid, GetUserId()))
1560  ereport(ERROR,
1561  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
1562  errmsg("must be owner of type %s or type %s",
1563  format_type_be(sourcetypeid),
1564  format_type_be(targettypeid))));
1565 
1566  aclresult = pg_type_aclcheck(sourcetypeid, GetUserId(), ACL_USAGE);
1567  if (aclresult != ACLCHECK_OK)
1568  aclcheck_error_type(aclresult, sourcetypeid);
1569 
1570  aclresult = pg_type_aclcheck(targettypeid, GetUserId(), ACL_USAGE);
1571  if (aclresult != ACLCHECK_OK)
1572  aclcheck_error_type(aclresult, targettypeid);
1573 
1574  /* Domains are allowed for historical reasons, but we warn */
1575  if (sourcetyptype == TYPTYPE_DOMAIN)
1576  ereport(WARNING,
1577  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1578  errmsg("cast will be ignored because the source data type is a domain")));
1579 
1580  else if (targettyptype == TYPTYPE_DOMAIN)
1581  ereport(WARNING,
1582  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1583  errmsg("cast will be ignored because the target data type is a domain")));
1584 
1585  /* Determine the cast method */
1586  if (stmt->func != NULL)
1587  castmethod = COERCION_METHOD_FUNCTION;
1588  else if (stmt->inout)
1589  castmethod = COERCION_METHOD_INOUT;
1590  else
1591  castmethod = COERCION_METHOD_BINARY;
1592 
1593  if (castmethod == COERCION_METHOD_FUNCTION)
1594  {
1595  Form_pg_proc procstruct;
1596 
1597  funcid = LookupFuncWithArgs(OBJECT_FUNCTION, stmt->func, false);
1598 
1599  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcid));
1600  if (!HeapTupleIsValid(tuple))
1601  elog(ERROR, "cache lookup failed for function %u", funcid);
1602 
1603  procstruct = (Form_pg_proc) GETSTRUCT(tuple);
1604  nargs = procstruct->pronargs;
1605  if (nargs < 1 || nargs > 3)
1606  ereport(ERROR,
1607  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1608  errmsg("cast function must take one to three arguments")));
1609  if (!IsBinaryCoercible(sourcetypeid, procstruct->proargtypes.values[0]))
1610  ereport(ERROR,
1611  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1612  errmsg("argument of cast function must match or be binary-coercible from source data type")));
1613  if (nargs > 1 && procstruct->proargtypes.values[1] != INT4OID)
1614  ereport(ERROR,
1615  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1616  errmsg("second argument of cast function must be type %s",
1617  "integer")));
1618  if (nargs > 2 && procstruct->proargtypes.values[2] != BOOLOID)
1619  ereport(ERROR,
1620  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1621  errmsg("third argument of cast function must be type %s",
1622  "boolean")));
1623  if (!IsBinaryCoercible(procstruct->prorettype, targettypeid))
1624  ereport(ERROR,
1625  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1626  errmsg("return data type of cast function must match or be binary-coercible to target data type")));
1627 
1628  /*
1629  * Restricting the volatility of a cast function may or may not be a
1630  * good idea in the abstract, but it definitely breaks many old
1631  * user-defined types. Disable this check --- tgl 2/1/03
1632  */
1633 #ifdef NOT_USED
1634  if (procstruct->provolatile == PROVOLATILE_VOLATILE)
1635  ereport(ERROR,
1636  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1637  errmsg("cast function must not be volatile")));
1638 #endif
1639  if (procstruct->prokind != PROKIND_FUNCTION)
1640  ereport(ERROR,
1641  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1642  errmsg("cast function must be a normal function")));
1643  if (procstruct->proretset)
1644  ereport(ERROR,
1645  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1646  errmsg("cast function must not return a set")));
1647 
1648  ReleaseSysCache(tuple);
1649  }
1650  else
1651  {
1652  funcid = InvalidOid;
1653  nargs = 0;
1654  }
1655 
1656  if (castmethod == COERCION_METHOD_BINARY)
1657  {
1658  int16 typ1len;
1659  int16 typ2len;
1660  bool typ1byval;
1661  bool typ2byval;
1662  char typ1align;
1663  char typ2align;
1664 
1665  /*
1666  * Must be superuser to create binary-compatible casts, since
1667  * erroneous casts can easily crash the backend.
1668  */
1669  if (!superuser())
1670  ereport(ERROR,
1671  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
1672  errmsg("must be superuser to create a cast WITHOUT FUNCTION")));
1673 
1674  /*
1675  * Also, insist that the types match as to size, alignment, and
1676  * pass-by-value attributes; this provides at least a crude check that
1677  * they have similar representations. A pair of types that fail this
1678  * test should certainly not be equated.
1679  */
1680  get_typlenbyvalalign(sourcetypeid, &typ1len, &typ1byval, &typ1align);
1681  get_typlenbyvalalign(targettypeid, &typ2len, &typ2byval, &typ2align);
1682  if (typ1len != typ2len ||
1683  typ1byval != typ2byval ||
1684  typ1align != typ2align)
1685  ereport(ERROR,
1686  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1687  errmsg("source and target data types are not physically compatible")));
1688 
1689  /*
1690  * We know that composite, enum and array types are never binary-
1691  * compatible with each other. They all have OIDs embedded in them.
1692  *
1693  * Theoretically you could build a user-defined base type that is
1694  * binary-compatible with a composite, enum, or array type. But we
1695  * disallow that too, as in practice such a cast is surely a mistake.
1696  * You can always work around that by writing a cast function.
1697  */
1698  if (sourcetyptype == TYPTYPE_COMPOSITE ||
1699  targettyptype == TYPTYPE_COMPOSITE)
1700  ereport(ERROR,
1701  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1702  errmsg("composite data types are not binary-compatible")));
1703 
1704  if (sourcetyptype == TYPTYPE_ENUM ||
1705  targettyptype == TYPTYPE_ENUM)
1706  ereport(ERROR,
1707  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1708  errmsg("enum data types are not binary-compatible")));
1709 
1710  if (OidIsValid(get_element_type(sourcetypeid)) ||
1711  OidIsValid(get_element_type(targettypeid)))
1712  ereport(ERROR,
1713  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1714  errmsg("array data types are not binary-compatible")));
1715 
1716  /*
1717  * We also disallow creating binary-compatibility casts involving
1718  * domains. Casting from a domain to its base type is already
1719  * allowed, and casting the other way ought to go through domain
1720  * coercion to permit constraint checking. Again, if you're intent on
1721  * having your own semantics for that, create a no-op cast function.
1722  *
1723  * NOTE: if we were to relax this, the above checks for composites
1724  * etc. would have to be modified to look through domains to their
1725  * base types.
1726  */
1727  if (sourcetyptype == TYPTYPE_DOMAIN ||
1728  targettyptype == TYPTYPE_DOMAIN)
1729  ereport(ERROR,
1730  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1731  errmsg("domain data types must not be marked binary-compatible")));
1732  }
1733 
1734  /*
1735  * Allow source and target types to be same only for length coercion
1736  * functions. We assume a multi-arg function does length coercion.
1737  */
1738  if (sourcetypeid == targettypeid && nargs < 2)
1739  ereport(ERROR,
1740  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1741  errmsg("source data type and target data type are the same")));
1742 
1743  /* convert CoercionContext enum to char value for castcontext */
1744  switch (stmt->context)
1745  {
1746  case COERCION_IMPLICIT:
1747  castcontext = COERCION_CODE_IMPLICIT;
1748  break;
1749  case COERCION_ASSIGNMENT:
1750  castcontext = COERCION_CODE_ASSIGNMENT;
1751  break;
1752  /* COERCION_PLPGSQL is intentionally not covered here */
1753  case COERCION_EXPLICIT:
1754  castcontext = COERCION_CODE_EXPLICIT;
1755  break;
1756  default:
1757  elog(ERROR, "unrecognized CoercionContext: %d", stmt->context);
1758  castcontext = 0; /* keep compiler quiet */
1759  break;
1760  }
1761 
1762  myself = CastCreate(sourcetypeid, targettypeid, funcid, castcontext,
1763  castmethod, DEPENDENCY_NORMAL);
1764  return myself;
1765 }
signed short int16
Definition: c.h:428
TypeName * sourcetype
Definition: parsenodes.h:3510
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
Oid GetUserId(void)
Definition: miscinit.c:478
ObjectAddress CastCreate(Oid sourcetypeid, Oid targettypeid, Oid funcid, char castcontext, char castmethod, DependencyType behavior)
Definition: pg_cast.c:43
Oid get_element_type(Oid typid)
Definition: lsyscache.c:2706
void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval, char *typalign)
Definition: lsyscache.c:2218
char * TypeNameToString(const TypeName *typeName)
Definition: parse_type.c:476
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
char get_typtype(Oid typid)
Definition: lsyscache.c:2576
char * format_type_be(Oid type_oid)
Definition: format_type.c:339
unsigned int Oid
Definition: postgres_ext.h:31
bool pg_type_ownercheck(Oid type_oid, Oid roleid)
Definition: aclchk.c:4844
#define OidIsValid(objectId)
Definition: c.h:710
void aclcheck_error_type(AclResult aclerr, Oid typeOid)
Definition: aclchk.c:3621
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
CoercionContext context
Definition: parsenodes.h:3513
#define ACL_USAGE
Definition: parsenodes.h:90
bool IsBinaryCoercible(Oid srctype, Oid targettype)
#define WARNING
Definition: elog.h:40
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
AclResult
Definition: acl.h:177
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
ObjectWithArgs * func
Definition: parsenodes.h:3512
FormData_pg_proc * Form_pg_proc
Definition: pg_proc.h:136
#define InvalidOid
Definition: postgres_ext.h:36
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define elog(elevel,...)
Definition: elog.h:232
Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func, bool missing_ok)
Definition: parse_func.c:2207
TypeName * targettype
Definition: parsenodes.h:3511
AclResult pg_type_aclcheck(Oid type_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4806
Oid typenameTypeId(ParseState *pstate, const TypeName *typeName)
Definition: parse_type.c:291

◆ CreateForeignDataWrapper()

ObjectAddress CreateForeignDataWrapper ( ParseState pstate,
CreateFdwStmt stmt 
)

Definition at line 558 of file foreigncmds.c.

References CatalogTupleInsert(), ObjectAddress::classId, CStringGetDatum, DatumGetPointer, DEPENDENCY_NORMAL, DirectFunctionCall1, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errhint(), errmsg(), ERROR, CreateFdwStmt::fdwname, CreateFdwStmt::func_options, GetForeignDataWrapperByName(), GetNewOidWithIndex(), GetUserId(), heap_form_tuple(), heap_freetuple(), InvokeObjectPostCreateHook, namein(), ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, CreateFdwStmt::options, parse_func_options(), PointerGetDatum, PointerIsValid, RelationData::rd_att, recordDependencyOn(), recordDependencyOnCurrentExtension(), recordDependencyOnOwner(), RowExclusiveLock, superuser(), table_close(), table_open(), transformGenericOptions(), and values.

Referenced by ProcessUtilitySlow().

559 {
560  Relation rel;
561  Datum values[Natts_pg_foreign_data_wrapper];
562  bool nulls[Natts_pg_foreign_data_wrapper];
563  HeapTuple tuple;
564  Oid fdwId;
565  bool handler_given;
566  bool validator_given;
567  Oid fdwhandler;
568  Oid fdwvalidator;
569  Datum fdwoptions;
570  Oid ownerId;
571  ObjectAddress myself;
572  ObjectAddress referenced;
573 
574  rel = table_open(ForeignDataWrapperRelationId, RowExclusiveLock);
575 
576  /* Must be super user */
577  if (!superuser())
578  ereport(ERROR,
579  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
580  errmsg("permission denied to create foreign-data wrapper \"%s\"",
581  stmt->fdwname),
582  errhint("Must be superuser to create a foreign-data wrapper.")));
583 
584  /* For now the owner cannot be specified on create. Use effective user ID. */
585  ownerId = GetUserId();
586 
587  /*
588  * Check that there is no other foreign-data wrapper by this name.
589  */
590  if (GetForeignDataWrapperByName(stmt->fdwname, true) != NULL)
591  ereport(ERROR,
593  errmsg("foreign-data wrapper \"%s\" already exists",
594  stmt->fdwname)));
595 
596  /*
597  * Insert tuple into pg_foreign_data_wrapper.
598  */
599  memset(values, 0, sizeof(values));
600  memset(nulls, false, sizeof(nulls));
601 
602  fdwId = GetNewOidWithIndex(rel, ForeignDataWrapperOidIndexId,
603  Anum_pg_foreign_data_wrapper_oid);
604  values[Anum_pg_foreign_data_wrapper_oid - 1] = ObjectIdGetDatum(fdwId);
605  values[Anum_pg_foreign_data_wrapper_fdwname - 1] =
607  values[Anum_pg_foreign_data_wrapper_fdwowner - 1] = ObjectIdGetDatum(ownerId);
608 
609  /* Lookup handler and validator functions, if given */
610  parse_func_options(pstate, stmt->func_options,
611  &handler_given, &fdwhandler,
612  &validator_given, &fdwvalidator);
613 
614  values[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = ObjectIdGetDatum(fdwhandler);
615  values[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = ObjectIdGetDatum(fdwvalidator);
616 
617  nulls[Anum_pg_foreign_data_wrapper_fdwacl - 1] = true;
618 
619  fdwoptions = transformGenericOptions(ForeignDataWrapperRelationId,
620  PointerGetDatum(NULL),
621  stmt->options,
622  fdwvalidator);
623 
624  if (PointerIsValid(DatumGetPointer(fdwoptions)))
625  values[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = fdwoptions;
626  else
627  nulls[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = true;
628 
629  tuple = heap_form_tuple(rel->rd_att, values, nulls);
630 
631  CatalogTupleInsert(rel, tuple);
632 
633  heap_freetuple(tuple);
634 
635  /* record dependencies */
636  myself.classId = ForeignDataWrapperRelationId;
637  myself.objectId = fdwId;
638  myself.objectSubId = 0;
639 
640  if (OidIsValid(fdwhandler))
641  {
642  referenced.classId = ProcedureRelationId;
643  referenced.objectId = fdwhandler;
644  referenced.objectSubId = 0;
645  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
646  }
647 
648  if (OidIsValid(fdwvalidator))
649  {
650  referenced.classId = ProcedureRelationId;
651  referenced.objectId = fdwvalidator;
652  referenced.objectSubId = 0;
653  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
654  }
655 
656  recordDependencyOnOwner(ForeignDataWrapperRelationId, fdwId, ownerId);
657 
658  /* dependency on extension */
659  recordDependencyOnCurrentExtension(&myself, false);
660 
661  /* Post creation hook for new foreign data wrapper */
662  InvokeObjectPostCreateHook(ForeignDataWrapperRelationId, fdwId, 0);
663 
665 
666  return myself;
667 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
Datum namein(PG_FUNCTION_ARGS)
Definition: name.c:48
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
int errhint(const char *fmt,...)
Definition: elog.c:1156
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
Oid GetUserId(void)
Definition: miscinit.c:478
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
#define DirectFunctionCall1(func, arg1)
Definition: fmgr.h:626
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:163
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:710
List * options
Definition: parsenodes.h:2379
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
char * fdwname
Definition: parsenodes.h:2377
#define CStringGetDatum(X)
Definition: postgres.h:622
uintptr_t Datum
Definition: postgres.h:411
TupleDesc rd_att
Definition: rel.h:110
#define ereport(elevel,...)
Definition: elog.h:157
ForeignDataWrapper * GetForeignDataWrapperByName(const char *fdwname, bool missing_ok)
Definition: foreign.c:94
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:184
static void parse_func_options(ParseState *pstate, List *func_options, bool *handler_given, Oid *fdwhandler, bool *validator_given, Oid *fdwvalidator)
Definition: foreigncmds.c:518
#define DatumGetPointer(X)
Definition: postgres.h:593
static Datum values[MAXATTR]
Definition: bootstrap.c:166
int errmsg(const char *fmt,...)
Definition: elog.c:909
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
#define PointerIsValid(pointer)
Definition: c.h:698
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221
List * func_options
Definition: parsenodes.h:2378

◆ CreateForeignServer()

ObjectAddress CreateForeignServer ( CreateForeignServerStmt stmt)

Definition at line 838 of file foreigncmds.c.

References ACL_USAGE, aclcheck_error(), ACLCHECK_OK, CatalogTupleInsert(), ObjectAddress::classId, CStringGetDatum, CStringGetTextDatum, DatumGetPointer, DEPENDENCY_NORMAL, DirectFunctionCall1, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errmsg(), ERROR, ForeignDataWrapper::fdwid, ForeignDataWrapper::fdwname, CreateForeignServerStmt::fdwname, ForeignDataWrapper::fdwvalidator, GetForeignDataWrapperByName(), GetForeignServerByName(), GetNewOidWithIndex(), GetUserId(), heap_form_tuple(), heap_freetuple(), CreateForeignServerStmt::if_not_exists, InvalidObjectAddress, InvokeObjectPostCreateHook, namein(), NOTICE, OBJECT_FDW, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, CreateForeignServerStmt::options, pg_foreign_data_wrapper_aclcheck(), PointerGetDatum, PointerIsValid, RelationData::rd_att, recordDependencyOn(), recordDependencyOnCurrentExtension(), recordDependencyOnOwner(), RowExclusiveLock, CreateForeignServerStmt::servername, CreateForeignServerStmt::servertype, table_close(), table_open(), transformGenericOptions(), values, and CreateForeignServerStmt::version.

Referenced by ProcessUtilitySlow().

839 {
840  Relation rel;
841  Datum srvoptions;
842  Datum values[Natts_pg_foreign_server];
843  bool nulls[Natts_pg_foreign_server];
844  HeapTuple tuple;
845  Oid srvId;
846  Oid ownerId;
847  AclResult aclresult;
848  ObjectAddress myself;
849  ObjectAddress referenced;
850  ForeignDataWrapper *fdw;
851 
852  rel = table_open(ForeignServerRelationId, RowExclusiveLock);
853 
854  /* For now the owner cannot be specified on create. Use effective user ID. */
855  ownerId = GetUserId();
856 
857  /*
858  * Check that there is no other foreign server by this name. Do nothing if
859  * IF NOT EXISTS was enforced.
860  */
861  if (GetForeignServerByName(stmt->servername, true) != NULL)
862  {
863  if (stmt->if_not_exists)
864  {
865  ereport(NOTICE,
867  errmsg("server \"%s\" already exists, skipping",
868  stmt->servername)));
870  return InvalidObjectAddress;
871  }
872  else
873  ereport(ERROR,
875  errmsg("server \"%s\" already exists",
876  stmt->servername)));
877  }
878 
879  /*
880  * Check that the FDW exists and that we have USAGE on it. Also get the
881  * actual FDW for option validation etc.
882  */
883  fdw = GetForeignDataWrapperByName(stmt->fdwname, false);
884 
885  aclresult = pg_foreign_data_wrapper_aclcheck(fdw->fdwid, ownerId, ACL_USAGE);
886  if (aclresult != ACLCHECK_OK)
887  aclcheck_error(aclresult, OBJECT_FDW, fdw->fdwname);
888 
889  /*
890  * Insert tuple into pg_foreign_server.
891  */
892  memset(values, 0, sizeof(values));
893  memset(nulls, false, sizeof(nulls));
894 
895  srvId = GetNewOidWithIndex(rel, ForeignServerOidIndexId,
896  Anum_pg_foreign_server_oid);
897  values[Anum_pg_foreign_server_oid - 1] = ObjectIdGetDatum(srvId);
898  values[Anum_pg_foreign_server_srvname - 1] =
900  values[Anum_pg_foreign_server_srvowner - 1] = ObjectIdGetDatum(ownerId);
901  values[Anum_pg_foreign_server_srvfdw - 1] = ObjectIdGetDatum(fdw->fdwid);
902 
903  /* Add server type if supplied */
904  if (stmt->servertype)
905  values[Anum_pg_foreign_server_srvtype - 1] =
907  else
908  nulls[Anum_pg_foreign_server_srvtype - 1] = true;
909 
910  /* Add server version if supplied */
911  if (stmt->version)
912  values[Anum_pg_foreign_server_srvversion - 1] =
914  else
915  nulls[Anum_pg_foreign_server_srvversion - 1] = true;
916 
917  /* Start with a blank acl */
918  nulls[Anum_pg_foreign_server_srvacl - 1] = true;
919 
920  /* Add server options */
921  srvoptions = transformGenericOptions(ForeignServerRelationId,
922  PointerGetDatum(NULL),
923  stmt->options,
924  fdw->fdwvalidator);
925 
926  if (PointerIsValid(DatumGetPointer(srvoptions)))
927  values[Anum_pg_foreign_server_srvoptions - 1] = srvoptions;
928  else
929  nulls[Anum_pg_foreign_server_srvoptions - 1] = true;
930 
931  tuple = heap_form_tuple(rel->rd_att, values, nulls);
932 
933  CatalogTupleInsert(rel, tuple);
934 
935  heap_freetuple(tuple);
936 
937  /* record dependencies */
938  myself.classId = ForeignServerRelationId;
939  myself.objectId = srvId;
940  myself.objectSubId = 0;
941 
942  referenced.classId = ForeignDataWrapperRelationId;
943  referenced.objectId = fdw->fdwid;
944  referenced.objectSubId = 0;
945  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
946 
947  recordDependencyOnOwner(ForeignServerRelationId, srvId, ownerId);
948 
949  /* dependency on extension */
950  recordDependencyOnCurrentExtension(&myself, false);
951 
952  /* Post creation hook for new foreign server */
953  InvokeObjectPostCreateHook(ForeignServerRelationId, srvId, 0);
954 
956 
957  return myself;
958 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
Datum namein(PG_FUNCTION_ARGS)
Definition: name.c:48
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
Oid GetUserId(void)
Definition: miscinit.c:478
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
char * fdwname
Definition: foreign.h:28
#define PointerGetDatum(X)
Definition: postgres.h:600
AclResult pg_foreign_data_wrapper_aclcheck(Oid fdw_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4781
int errcode(int sqlerrcode)
Definition: elog.c:698
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
#define DirectFunctionCall1(func, arg1)
Definition: fmgr.h:626
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:163
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
#define ACL_USAGE
Definition: parsenodes.h:90
ForeignServer * GetForeignServerByName(const char *srvname, bool missing_ok)
Definition: foreign.c:180
AclResult
Definition: acl.h:177
uintptr_t Datum
Definition: postgres.h:411
TupleDesc rd_att
Definition: rel.h:110
#define ereport(elevel,...)
Definition: elog.h:157
#define NOTICE
Definition: elog.h:37
ForeignDataWrapper * GetForeignDataWrapperByName(const char *fdwname, bool missing_ok)
Definition: foreign.c:94
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:184
#define DatumGetPointer(X)
Definition: postgres.h:593
static Datum values[MAXATTR]
Definition: bootstrap.c:166
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define CStringGetTextDatum(s)
Definition: builtins.h:82
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
#define PointerIsValid(pointer)
Definition: c.h:698
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221

◆ CreateForeignTable()

void CreateForeignTable ( CreateForeignTableStmt stmt,
Oid  relid 
)

Definition at line 1391 of file foreigncmds.c.

References ACL_USAGE, aclcheck_error(), ACLCHECK_OK, CatalogTupleInsert(), ObjectAddress::classId, CommandCounterIncrement(), DatumGetPointer, DEPENDENCY_NORMAL, ForeignServer::fdwid, ForeignDataWrapper::fdwvalidator, GetForeignDataWrapper(), GetForeignServerByName(), GetUserId(), heap_form_tuple(), heap_freetuple(), OBJECT_FOREIGN_SERVER, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, CreateForeignTableStmt::options, pg_foreign_server_aclcheck(), PointerGetDatum, PointerIsValid, RelationData::rd_att, recordDependencyOn(), RowExclusiveLock, ForeignServer::serverid, ForeignServer::servername, CreateForeignTableStmt::servername, table_close(), table_open(), transformGenericOptions(), and values.

Referenced by ProcessUtilitySlow().

1392 {
1393  Relation ftrel;
1394  Datum ftoptions;
1395  Datum values[Natts_pg_foreign_table];
1396  bool nulls[Natts_pg_foreign_table];
1397  HeapTuple tuple;
1398  AclResult aclresult;
1399  ObjectAddress myself;
1400  ObjectAddress referenced;
1401  Oid ownerId;
1402  ForeignDataWrapper *fdw;
1403  ForeignServer *server;
1404 
1405  /*
1406  * Advance command counter to ensure the pg_attribute tuple is visible;
1407  * the tuple might be updated to add constraints in previous step.
1408  */
1410 
1411  ftrel = table_open(ForeignTableRelationId, RowExclusiveLock);
1412 
1413  /*
1414  * For now the owner cannot be specified on create. Use effective user ID.
1415  */
1416  ownerId = GetUserId();
1417 
1418  /*
1419  * Check that the foreign server exists and that we have USAGE on it. Also
1420  * get the actual FDW for option validation etc.
1421  */
1422  server = GetForeignServerByName(stmt->servername, false);
1423  aclresult = pg_foreign_server_aclcheck(server->serverid, ownerId, ACL_USAGE);
1424  if (aclresult != ACLCHECK_OK)
1425  aclcheck_error(aclresult, OBJECT_FOREIGN_SERVER, server->servername);
1426 
1427  fdw = GetForeignDataWrapper(server->fdwid);
1428 
1429  /*
1430  * Insert tuple into pg_foreign_table.
1431  */
1432  memset(values, 0, sizeof(values));
1433  memset(nulls, false, sizeof(nulls));
1434 
1435  values[Anum_pg_foreign_table_ftrelid - 1] = ObjectIdGetDatum(relid);
1436  values[Anum_pg_foreign_table_ftserver - 1] = ObjectIdGetDatum(server->serverid);
1437  /* Add table generic options */
1438  ftoptions = transformGenericOptions(ForeignTableRelationId,
1439  PointerGetDatum(NULL),
1440  stmt->options,
1441  fdw->fdwvalidator);
1442 
1443  if (PointerIsValid(DatumGetPointer(ftoptions)))
1444  values[Anum_pg_foreign_table_ftoptions - 1] = ftoptions;
1445  else
1446  nulls[Anum_pg_foreign_table_ftoptions - 1] = true;
1447 
1448  tuple = heap_form_tuple(ftrel->rd_att, values, nulls);
1449 
1450  CatalogTupleInsert(ftrel, tuple);
1451 
1452  heap_freetuple(tuple);
1453 
1454  /* Add pg_class dependency on the server */
1455  myself.classId = RelationRelationId;
1456  myself.objectId = relid;
1457  myself.objectSubId = 0;
1458 
1459  referenced.classId = ForeignServerRelationId;
1460  referenced.objectId = server->serverid;
1461  referenced.objectSubId = 0;
1462  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
1463 
1464  table_close(ftrel, RowExclusiveLock);
1465 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
Oid GetUserId(void)
Definition: miscinit.c:478
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
ForeignDataWrapper * GetForeignDataWrapper(Oid fdwid)
Definition: foreign.c:35
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
AclResult pg_foreign_server_aclcheck(Oid srv_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4794
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ACL_USAGE
Definition: parsenodes.h:90
ForeignServer * GetForeignServerByName(const char *srvname, bool missing_ok)
Definition: foreign.c:180
AclResult
Definition: acl.h:177
uintptr_t Datum
Definition: postgres.h:411
void CommandCounterIncrement(void)
Definition: xact.c:1021
TupleDesc rd_att
Definition: rel.h:110
#define DatumGetPointer(X)
Definition: postgres.h:593
static Datum values[MAXATTR]
Definition: bootstrap.c:166
char * servername
Definition: foreign.h:39
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define PointerIsValid(pointer)
Definition: c.h:698
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221
Oid serverid
Definition: foreign.h:36

◆ CreateFunction()

ObjectAddress CreateFunction ( ParseState pstate,
CreateFunctionStmt stmt 
)

Definition at line 1019 of file functioncmds.c.

References ACL_CREATE, ACL_USAGE, aclcheck_error(), ACLCHECK_NO_PRIV, ACLCHECK_OK, Assert, castNode, compute_function_attributes(), compute_return_type(), construct_array(), ereport, errcode(), errhint(), errmsg(), ERROR, extension_file_exists(), format_type_be(), CreateFunctionStmt::funcname, get_base_element_type(), get_namespace_name(), get_transform_oid(), GETSTRUCT, GetUserId(), HeapTupleIsValid, i, interpret_AS_clause(), interpret_function_parameter_list(), InvalidOid, CreateFunctionStmt::is_procedure, LANGNAME, lappend_oid(), lfirst_node, lfirst_oid, list_length(), NameStr, NIL, OBJECT_FUNCTION, OBJECT_LANGUAGE, OBJECT_PROCEDURE, OBJECT_SCHEMA, ObjectIdGetDatum, OidIsValid, CreateFunctionStmt::options, ParseState::p_sourcetext, palloc(), CreateFunctionStmt::parameters, pg_language_aclcheck(), pg_namespace_aclcheck(), PointerGetDatum, ProcedureCreate(), QualifiedNameGetCreationNamespace(), ReleaseSysCache(), CreateFunctionStmt::replace, CreateFunctionStmt::returnType, SearchSysCache1(), CreateFunctionStmt::sql_body, superuser(), and typenameTypeId().

Referenced by ProcessUtilitySlow().

1020 {
1021  char *probin_str;
1022  char *prosrc_str;
1023  Node *prosqlbody;
1024  Oid prorettype;
1025  bool returnsSet;
1026  char *language;
1027  Oid languageOid;
1028  Oid languageValidator;
1029  Node *transformDefElem = NULL;
1030  char *funcname;
1031  Oid namespaceId;
1032  AclResult aclresult;
1033  oidvector *parameterTypes;
1034  List *parameterTypes_list = NIL;
1035  ArrayType *allParameterTypes;
1036  ArrayType *parameterModes;
1037  ArrayType *parameterNames;
1038  List *inParameterNames_list = NIL;
1039  List *parameterDefaults;
1040  Oid variadicArgType;
1041  List *trftypes_list = NIL;
1042  ArrayType *trftypes;
1043  Oid requiredResultType;
1044  bool isWindowFunc,
1045  isStrict,
1046  security,
1047  isLeakProof;
1048  char volatility;
1049  ArrayType *proconfig;
1050  float4 procost;
1051  float4 prorows;
1052  Oid prosupport;
1053  HeapTuple languageTuple;
1054  Form_pg_language languageStruct;
1055  List *as_clause;
1056  char parallel;
1057 
1058  /* Convert list of names to a name and namespace */
1059  namespaceId = QualifiedNameGetCreationNamespace(stmt->funcname,
1060  &funcname);
1061 
1062  /* Check we have creation rights in target namespace */
1063  aclresult = pg_namespace_aclcheck(namespaceId, GetUserId(), ACL_CREATE);
1064  if (aclresult != ACLCHECK_OK)
1065  aclcheck_error(aclresult, OBJECT_SCHEMA,
1066  get_namespace_name(namespaceId));
1067 
1068  /* Set default attributes */
1069  as_clause = NIL;
1070  language = NULL;
1071  isWindowFunc = false;
1072  isStrict = false;
1073  security = false;
1074  isLeakProof = false;
1075  volatility = PROVOLATILE_VOLATILE;
1076  proconfig = NULL;
1077  procost = -1; /* indicates not set */
1078  prorows = -1; /* indicates not set */
1079  prosupport = InvalidOid;
1080  parallel = PROPARALLEL_UNSAFE;
1081 
1082  /* Extract non-default attributes from stmt->options list */
1084  stmt->is_procedure,
1085  stmt->options,
1086  &as_clause, &language, &transformDefElem,
1087  &isWindowFunc, &volatility,
1088  &isStrict, &security, &isLeakProof,
1089  &proconfig, &procost, &prorows,
1090  &prosupport, &parallel);
1091 
1092  if (!language)
1093  {
1094  if (stmt->sql_body)
1095  language = "sql";
1096  else
1097  ereport(ERROR,
1098  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
1099  errmsg("no language specified")));
1100  }
1101 
1102  /* Look up the language and validate permissions */
1103  languageTuple = SearchSysCache1(LANGNAME, PointerGetDatum(language));
1104  if (!HeapTupleIsValid(languageTuple))
1105  ereport(ERROR,
1106  (errcode(ERRCODE_UNDEFINED_OBJECT),
1107  errmsg("language \"%s\" does not exist", language),
1108  (extension_file_exists(language) ?
1109  errhint("Use CREATE EXTENSION to load the language into the database.") : 0)));
1110 
1111  languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);
1112  languageOid = languageStruct->oid;
1113 
1114  if (languageStruct->lanpltrusted)
1115  {
1116  /* if trusted language, need USAGE privilege */
1117  AclResult aclresult;
1118 
1119  aclresult = pg_language_aclcheck(languageOid, GetUserId(), ACL_USAGE);
1120  if (aclresult != ACLCHECK_OK)
1121  aclcheck_error(aclresult, OBJECT_LANGUAGE,
1122  NameStr(languageStruct->lanname));
1123  }
1124  else
1125  {
1126  /* if untrusted language, must be superuser */
1127  if (!superuser())
1129  NameStr(languageStruct->lanname));
1130  }
1131 
1132  languageValidator = languageStruct->lanvalidator;
1133 
1134  ReleaseSysCache(languageTuple);
1135 
1136  /*
1137  * Only superuser is allowed to create leakproof functions because
1138  * leakproof functions can see tuples which have not yet been filtered out
1139  * by security barrier views or row-level security policies.
1140  */
1141  if (isLeakProof && !superuser())
1142  ereport(ERROR,
1143  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
1144  errmsg("only superuser can define a leakproof function")));
1145 
1146  if (transformDefElem)
1147  {
1148  ListCell *lc;
1149 
1150  foreach(lc, castNode(List, transformDefElem))
1151  {
1152  Oid typeid = typenameTypeId(NULL,
1153  lfirst_node(TypeName, lc));
1154  Oid elt = get_base_element_type(typeid);
1155 
1156  typeid = elt ? elt : typeid;
1157 
1158  get_transform_oid(typeid, languageOid, false);
1159  trftypes_list = lappend_oid(trftypes_list, typeid);
1160  }
1161  }
1162 
1163  /*
1164  * Convert remaining parameters of CREATE to form wanted by
1165  * ProcedureCreate.
1166  */
1168  stmt->parameters,
1169  languageOid,
1171  &parameterTypes,
1172  &parameterTypes_list,
1173  &allParameterTypes,
1174  &parameterModes,
1175  &parameterNames,
1176  &inParameterNames_list,
1177  &parameterDefaults,
1178  &variadicArgType,
1179  &requiredResultType);
1180 
1181  if (stmt->is_procedure)
1182  {
1183  Assert(!stmt->returnType);
1184  prorettype = requiredResultType ? requiredResultType : VOIDOID;
1185  returnsSet = false;
1186  }
1187  else if (stmt->returnType)
1188  {
1189  /* explicit RETURNS clause */
1190  compute_return_type(stmt->returnType, languageOid,
1191  &prorettype, &returnsSet);
1192  if (OidIsValid(requiredResultType) && prorettype != requiredResultType)
1193  ereport(ERROR,
1194  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
1195  errmsg("function result type must be %s because of OUT parameters",
1196  format_type_be(requiredResultType))));
1197  }
1198  else if (OidIsValid(requiredResultType))
1199  {
1200  /* default RETURNS clause from OUT parameters */
1201  prorettype = requiredResultType;
1202  returnsSet = false;
1203  }
1204  else
1205  {
1206  ereport(ERROR,
1207  (errcode(ERRCODE_INVALID_FUNCTION_DEFINITION),
1208  errmsg("function result type must be specified")));
1209  /* Alternative possibility: default to RETURNS VOID */
1210  prorettype = VOIDOID;
1211  returnsSet = false;
1212  }
1213 
1214  if (list_length(trftypes_list) > 0)
1215  {
1216  ListCell *lc;
1217  Datum *arr;
1218  int i;
1219 
1220  arr = palloc(list_length(trftypes_list) * sizeof(Datum));
1221  i = 0;
1222  foreach(lc, trftypes_list)
1223  arr[i++] = ObjectIdGetDatum(lfirst_oid(lc));
1224  trftypes = construct_array(arr, list_length(trftypes_list),
1225  OIDOID, sizeof(Oid), true, TYPALIGN_INT);
1226  }
1227  else
1228  {
1229  /* store SQL NULL instead of empty array */
1230  trftypes = NULL;
1231  }
1232 
1233  interpret_AS_clause(languageOid, language, funcname, as_clause, stmt->sql_body,
1234  parameterTypes_list, inParameterNames_list,
1235  &prosrc_str, &probin_str, &prosqlbody,
1236  pstate->p_sourcetext);
1237 
1238  /*
1239  * Set default values for COST and ROWS depending on other parameters;
1240  * reject ROWS if it's not returnsSet. NB: pg_dump knows these default
1241  * values, keep it in sync if you change them.
1242  */
1243  if (procost < 0)
1244  {
1245  /* SQL and PL-language functions are assumed more expensive */
1246  if (languageOid == INTERNALlanguageId ||
1247  languageOid == ClanguageId)
1248  procost = 1;
1249  else
1250  procost = 100;
1251  }
1252  if (prorows < 0)
1253  {
1254  if (returnsSet)
1255  prorows = 1000;
1256  else
1257  prorows = 0; /* dummy value if not returnsSet */
1258  }
1259  else if (!returnsSet)
1260  ereport(ERROR,
1261  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1262  errmsg("ROWS is not applicable when function does not return a set")));
1263 
1264  /*
1265  * And now that we have all the parameters, and know we're permitted to do
1266  * so, go ahead and create the function.
1267  */
1268  return ProcedureCreate(funcname,
1269  namespaceId,
1270  stmt->replace,
1271  returnsSet,
1272  prorettype,
1273  GetUserId(),
1274  languageOid,
1275  languageValidator,
1276  prosrc_str, /* converted to text later */
1277  probin_str, /* converted to text later */
1278  prosqlbody,
1279  stmt->is_procedure ? PROKIND_PROCEDURE : (isWindowFunc ? PROKIND_WINDOW : PROKIND_FUNCTION),
1280  security,
1281  isLeakProof,
1282  isStrict,
1283  volatility,
1284  parallel,
1285  parameterTypes,
1286  PointerGetDatum(allParameterTypes),
1287  PointerGetDatum(parameterModes),
1288  PointerGetDatum(parameterNames),
1289  parameterDefaults,
1290  PointerGetDatum(trftypes),
1291  PointerGetDatum(proconfig),
1292  prosupport,
1293  procost,
1294  prorows);
1295 }
#define NIL
Definition: pg_list.h:65
Definition: c.h:660
static void interpret_AS_clause(Oid languageOid, const char *languageName, char *funcname, List *as, Node *sql_body_in, List *parameterTypes, List *inParameterNames, char **prosrc_str_p, char **probin_str_p, Node **sql_body_out, const char *queryString)
Definition: functioncmds.c:859
int errhint(const char *fmt,...)
Definition: elog.c:1156
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
Oid GetUserId(void)
Definition: miscinit.c:478
#define castNode(_type_, nodeptr)
Definition: nodes.h:608
Oid QualifiedNameGetCreationNamespace(List *names, char **objname_p)
Definition: namespace.c:3040
#define PointerGetDatum(X)
Definition: postgres.h:600
static void compute_return_type(TypeName *returnType, Oid languageOid, Oid *prorettype_p, bool *returnsSet_p)
Definition: functioncmds.c:92
ArrayType * construct_array(Datum *elems, int nelems, Oid elmtype, int elmlen, bool elmbyval, char elmalign)
Definition: arrayfuncs.c:3318
Definition: nodes.h:539
int errcode(int sqlerrcode)
Definition: elog.c:698
bool superuser(void)
Definition: superuser.c:46
char * format_type_be(Oid type_oid)
Definition: format_type.c:339
unsigned int Oid
Definition: postgres_ext.h:31
List * lappend_oid(List *list, Oid datum)
Definition: list.c:372
#define OidIsValid(objectId)
Definition: c.h:710
AclResult pg_namespace_aclcheck(Oid nsp_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4756
AclResult pg_language_aclcheck(Oid lang_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4730
Oid get_transform_oid(Oid type_id, Oid lang_id, bool missing_ok)
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
#define ACL_CREATE
Definition: parsenodes.h:92
#define lfirst_node(type, lc)
Definition: pg_list.h:172
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3316
static void compute_function_attributes(ParseState *pstate, bool is_procedure, List *options, List **as, char **language, Node **transform, bool *windowfunc_p, char *volatility_p, bool *strict_p, bool *security_definer, bool *leakproof_p, ArrayType **proconfig, float4 *procost, float4 *prorows, Oid *prosupport, char *parallel_p)
Definition: functioncmds.c:722
#define ACL_USAGE
Definition: parsenodes.h:90
const char * p_sourcetext
Definition: parse_node.h:181
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
float float4
Definition: c.h:564
AclResult
Definition: acl.h:177
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
void interpret_function_parameter_list(ParseState *pstate, List *parameters, Oid languageOid, ObjectType objtype, oidvector **parameterTypes, List **parameterTypes_list, ArrayType **allParameterTypes, ArrayType **parameterModes, ArrayType **parameterNames, List **inParameterNames_list, List **parameterDefaults, Oid *variadicArgType, Oid *requiredResultType)
Definition: functioncmds.c:188
#define InvalidOid
Definition: postgres_ext.h:36
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define Assert(condition)
Definition: c.h:804
TypeName * returnType
Definition: parsenodes.h:2958
static int list_length(const List *l)
Definition: pg_list.h:149
bool extension_file_exists(const char *extensionName)
Definition: extension.c:2229
Oid get_base_element_type(Oid typid)
Definition: lsyscache.c:2779
FormData_pg_language * Form_pg_language
Definition: pg_language.h:65
void * palloc(Size size)
Definition: mcxt.c:1062
int errmsg(const char *fmt,...)
Definition: elog.c:909
int i
#define NameStr(name)
Definition: c.h:681
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:70
Definition: pg_list.h:50
#define lfirst_oid(lc)
Definition: pg_list.h:171
Oid typenameTypeId(ParseState *pstate, const TypeName *typeName)
Definition: parse_type.c:291

◆ CreateStatistics()

ObjectAddress CreateStatistics ( CreateStatsStmt stmt)

Definition at line 64 of file statscmds.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, allowSystemTableMods, Assert, attname, buildint2vector(), CacheInvalidateRelcache(), CatalogTupleInsert(), CharGetDatum, ChooseExtendedStatisticName(), ChooseExtendedStatisticNameAddition(), compare_int16(), construct_array(), CreateComments(), CStringGetDatum, CStringGetTextDatum, CreateStatsStmt::defnames, DEPENDENCY_AUTO, DEPENDENCY_NORMAL, equal(), ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errdetail_relkind_not_supported(), errmsg(), ERROR, StatsElem::expr, CreateStatsStmt::exprs, exprType(), format_type_be(), get_relkind_objtype(), GetNewOidWithIndex(), GETSTRUCT, GetUserId(), heap_form_tuple(), heap_freetuple(), HeapTupleIsValid, i, CreateStatsStmt::if_not_exists, Int32GetDatum, InvalidObjectAddress, InvalidOid, InvokeObjectPostCreateHook, IsA, IsSystemRelation(), lappend(), lengthof, lfirst, lfirst_node, list_length(), lookup_type_cache(), TypeCacheEntry::lt_opr, StatsElem::name, NameGetDatum, namestrcpy(), NIL, nodeToString(), NoLock, NOTICE, ObjectAddressSet, ObjectAddressSubSet, ObjectIdGetDatum, pfree(), pg_class_ownercheck(), PointerGetDatum, qsort, QualifiedNameGetCreationNamespace(), RelationData::rd_att, RelationData::rd_rel, recordDependencyOn(), recordDependencyOnOwner(), recordDependencyOnSingleRelExpr(), relation_close(), relation_openrv(), RelationGetNamespace, RelationGetRelationName, RelationGetRelid, CreateStatsStmt::relations, ReleaseSysCache(), RowExclusiveLock, SearchSysCacheAttName(), SearchSysCacheExists2, ShareUpdateExclusiveLock, CreateStatsStmt::stat_types, STATEXTNAMENSP, STATS_MAX_DIMENSIONS, strVal, CreateStatsStmt::stxcomment, table_open(), generate_unaccent_rules::type, TYPECACHE_LT_OPR, types, and values.

Referenced by ATExecAddStatistics(), and ProcessUtilitySlow().

65 {
66  int16 attnums[STATS_MAX_DIMENSIONS];
67  int nattnums = 0;
68  int numcols;
69  char *namestr;
70  NameData stxname;
71  Oid statoid;
72  Oid namespaceId;
73  Oid stxowner = GetUserId();
74  HeapTuple htup;
75  Datum values[Natts_pg_statistic_ext];
76  bool nulls[Natts_pg_statistic_ext];
77  Datum datavalues[Natts_pg_statistic_ext_data];
78  bool datanulls[Natts_pg_statistic_ext_data];
79  int2vector *stxkeys;
80  List *stxexprs = NIL;
81  Datum exprsDatum;
82  Relation statrel;
83  Relation datarel;
84  Relation rel = NULL;
85  Oid relid;
86  ObjectAddress parentobject,
87  myself;
88  Datum types[4]; /* one for each possible type of statistic */
89  int ntypes;
90  ArrayType *stxkind;
91  bool build_ndistinct;
92  bool build_dependencies;
93  bool build_mcv;
94  bool build_expressions;
95  bool requested_type = false;
96  int i;
97  ListCell *cell;
98  ListCell *cell2;
99 
100  Assert(IsA(stmt, CreateStatsStmt));
101 
102  /*
103  * Examine the FROM clause. Currently, we only allow it to be a single
104  * simple table, but later we'll probably allow multiple tables and JOIN
105  * syntax. The grammar is already prepared for that, so we have to check
106  * here that what we got is what we can support.
107  */
108  if (list_length(stmt->relations) != 1)
109  ereport(ERROR,
110  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
111  errmsg("only a single relation is allowed in CREATE STATISTICS")));
112 
113  foreach(cell, stmt->relations)
114  {
115  Node *rln = (Node *) lfirst(cell);
116 
117  if (!IsA(rln, RangeVar))
118  ereport(ERROR,
119  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
120  errmsg("only a single relation is allowed in CREATE STATISTICS")));
121 
122  /*
123  * CREATE STATISTICS will influence future execution plans but does
124  * not interfere with currently executing plans. So it should be
125  * enough to take only ShareUpdateExclusiveLock on relation,
126  * conflicting with ANALYZE and other DDL that sets statistical
127  * information, but not with normal queries.
128  */
130 
131  /* Restrict to allowed relation types */
132  if (rel->rd_rel->relkind != RELKIND_RELATION &&
133  rel->rd_rel->relkind != RELKIND_MATVIEW &&
134  rel->rd_rel->relkind != RELKIND_FOREIGN_TABLE &&
135  rel->rd_rel->relkind != RELKIND_PARTITIONED_TABLE)
136  ereport(ERROR,
137  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
138  errmsg("cannot define statistics for relation \"%s\"",
140  errdetail_relkind_not_supported(rel->rd_rel->relkind)));
141 
142  /* You must own the relation to create stats on it */
143  if (!pg_class_ownercheck(RelationGetRelid(rel), stxowner))
146 
147  /* Creating statistics on system catalogs is not allowed */
149  ereport(ERROR,
150  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
151  errmsg("permission denied: \"%s\" is a system catalog",
152  RelationGetRelationName(rel))));
153  }
154 
155  Assert(rel);
156  relid = RelationGetRelid(rel);
157 
158  /*
159  * If the node has a name, split it up and determine creation namespace.
160  * If not (a possibility not considered by the grammar, but one which can
161  * occur via the "CREATE TABLE ... (LIKE)" command), then we put the
162  * object in the same namespace as the relation, and cons up a name for
163  * it.
164  */
165  if (stmt->defnames)
166  namespaceId = QualifiedNameGetCreationNamespace(stmt->defnames,
167  &namestr);
168  else
169  {
170  namespaceId = RelationGetNamespace(rel);
173  "stat",
174  namespaceId);
175  }
176  namestrcpy(&stxname, namestr);
177 
178  /*
179  * Deal with the possibility that the statistics object already exists.
180  */
182  CStringGetDatum(namestr),
183  ObjectIdGetDatum(namespaceId)))
184  {
185  if (stmt->if_not_exists)
186  {
187  ereport(NOTICE,
189  errmsg("statistics object \"%s\" already exists, skipping",
190  namestr)));
191  relation_close(rel, NoLock);
192  return InvalidObjectAddress;
193  }
194 
195  ereport(ERROR,
197  errmsg("statistics object \"%s\" already exists", namestr)));
198  }
199 
200  /*
201  * Make sure no more than STATS_MAX_DIMENSIONS columns are used. There
202  * might be duplicates and so on, but we'll deal with those later.
203  */
204  numcols = list_length(stmt->exprs);
205  if (numcols > STATS_MAX_DIMENSIONS)
206  ereport(ERROR,
207  (errcode(ERRCODE_TOO_MANY_COLUMNS),
208  errmsg("cannot have more than %d columns in statistics",
210 
211  /*
212  * Convert the expression list to a simple array of attnums, but also keep
213  * a list of more complex expressions. While at it, enforce some
214  * constraints.
215  *
216  * XXX We do only the bare minimum to separate simple attribute and
217  * complex expressions - for example "(a)" will be treated as a complex
218  * expression. No matter how elaborate the check is, there'll always be a
219  * way around it, if the user is determined (consider e.g. "(a+0)"), so
220  * it's not worth protecting against it.
221  */
222  foreach(cell, stmt->exprs)
223  {
224  StatsElem *selem = lfirst_node(StatsElem, cell);
225 
226  if (selem->name) /* column reference */
227  {
228  char *attname;
229  HeapTuple atttuple;
230  Form_pg_attribute attForm;
232 
233  attname = selem->name;
234 
235  atttuple = SearchSysCacheAttName(relid, attname);
236  if (!HeapTupleIsValid(atttuple))
237  ereport(ERROR,
238  (errcode(ERRCODE_UNDEFINED_COLUMN),
239  errmsg("column \"%s\" does not exist",
240  attname)));
241  attForm = (Form_pg_attribute) GETSTRUCT(atttuple);
242 
243  /* Disallow use of system attributes in extended stats */
244  if (attForm->attnum <= 0)
245  ereport(ERROR,
246  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
247  errmsg("statistics creation on system columns is not supported")));
248 
249  /* Disallow data types without a less-than operator */
250  type = lookup_type_cache(attForm->atttypid, TYPECACHE_LT_OPR);
251  if (type->lt_opr == InvalidOid)
252  ereport(ERROR,
253  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
254  errmsg("column \"%s\" cannot be used in statistics because its type %s has no default btree operator class",
255  attname, format_type_be(attForm->atttypid))));
256 
257  attnums[nattnums] = attForm->attnum;
258  nattnums++;
259  ReleaseSysCache(atttuple);
260  }
261  else /* expression */
262  {
263  Node *expr = selem->expr;
264  Oid atttype;
266 
267  Assert(expr != NULL);
268 
269  /*
270  * Disallow data types without a less-than operator.
271  *
272  * We ignore this for statistics on a single expression, in which
273  * case we'll build the regular statistics only (and that code can
274  * deal with such data types).
275  */
276  if (list_length(stmt->exprs) > 1)
277  {
278  atttype = exprType(expr);
279  type = lookup_type_cache(atttype, TYPECACHE_LT_OPR);
280  if (type->lt_opr == InvalidOid)
281  ereport(ERROR,
282  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
283  errmsg("expression cannot be used in multivariate statistics because its type %s has no default btree operator class",
284  format_type_be(atttype))));
285  }
286 
287  stxexprs = lappend(stxexprs, expr);
288  }
289  }
290 
291  /*
292  * Parse the statistics kinds.
293  *
294  * First check that if this is the case with a single expression, there
295  * are no statistics kinds specified (we don't allow that for the simple
296  * CREATE STATISTICS form).
297  */
298  if ((list_length(stmt->exprs) == 1) && (list_length(stxexprs) == 1))
299  {
300  /* statistics kinds not specified */
301  if (list_length(stmt->stat_types) > 0)
302  ereport(ERROR,
303  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
304  errmsg("when building statistics on a single expression, statistics kinds may not be specified")));
305  }
306 
307  /* OK, let's check that we recognize the statistics kinds. */
308  build_ndistinct = false;
309  build_dependencies = false;
310  build_mcv = false;
311  foreach(cell, stmt->stat_types)
312  {
313  char *type = strVal((Value *) lfirst(cell));
314 
315  if (strcmp(type, "ndistinct") == 0)
316  {
317  build_ndistinct = true;
318  requested_type = true;
319  }
320  else if (strcmp(type, "dependencies") == 0)
321  {
322  build_dependencies = true;
323  requested_type = true;
324  }
325  else if (strcmp(type, "mcv") == 0)
326  {
327  build_mcv = true;
328  requested_type = true;
329  }
330  else
331  ereport(ERROR,
332  (errcode(ERRCODE_SYNTAX_ERROR),
333  errmsg("unrecognized statistics kind \"%s\"",
334  type)));
335  }
336 
337  /*
338  * If no statistic type was specified, build them all (but only when the
339  * statistics is defined on more than one column/expression).
340  */
341  if ((!requested_type) && (numcols >= 2))
342  {
343  build_ndistinct = true;
344  build_dependencies = true;
345  build_mcv = true;
346  }
347 
348  /*
349  * When there are non-trivial expressions, build the expression stats
350  * automatically. This allows calculating good estimates for stats that
351  * consider per-clause estimates (e.g. functional dependencies).
352  */
353  build_expressions = (list_length(stxexprs) > 0);
354 
355  /*
356  * Check that at least two columns were specified in the statement, or
357  * that we're building statistics on a single expression.
358  */
359  if ((numcols < 2) && (list_length(stxexprs) != 1))
360  ereport(ERROR,
361  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
362  errmsg("extended statistics require at least 2 columns")));
363 
364  /*
365  * Sort the attnums, which makes detecting duplicates somewhat easier, and
366  * it does not hurt (it does not matter for the contents, unlike for
367  * indexes, for example).
368  */
369  qsort(attnums, nattnums, sizeof(int16), compare_int16);
370 
371  /*
372  * Check for duplicates in the list of columns. The attnums are sorted so
373  * just check consecutive elements.
374  */
375  for (i = 1; i < nattnums; i++)
376  {
377  if (attnums[i] == attnums[i - 1])
378  ereport(ERROR,
379  (errcode(ERRCODE_DUPLICATE_COLUMN),
380  errmsg("duplicate column name in statistics definition")));
381  }
382 
383  /*
384  * Check for duplicate expressions. We do two loops, counting the
385  * occurrences of each expression. This is O(N^2) but we only allow small
386  * number of expressions and it's not executed often.
387  *
388  * XXX We don't cross-check attributes and expressions, because it does
389  * not seem worth it. In principle we could check that expressions don't
390  * contain trivial attribute references like "(a)", but the reasoning is
391  * similar to why we don't bother with extracting columns from
392  * expressions. It's either expensive or very easy to defeat for
393  * determined user, and there's no risk if we allow such statistics (the
394  * statistics is useless, but harmless).
395  */
396  foreach(cell, stxexprs)
397  {
398  Node *expr1 = (Node *) lfirst(cell);
399  int cnt = 0;
400 
401  foreach(cell2, stxexprs)
402  {
403  Node *expr2 = (Node *) lfirst(cell2);
404 
405  if (equal(expr1, expr2))
406  cnt += 1;
407  }
408 
409  /* every expression should find at least itself */
410  Assert(cnt >= 1);
411 
412  if (cnt > 1)
413  ereport(ERROR,
414  (errcode(ERRCODE_DUPLICATE_COLUMN),
415  errmsg("duplicate expression in statistics definition")));
416  }
417 
418  /* Form an int2vector representation of the sorted column list */
419  stxkeys = buildint2vector(attnums, nattnums);
420 
421  /* construct the char array of enabled statistic types */
422  ntypes = 0;
423  if (build_ndistinct)
424  types[ntypes++] = CharGetDatum(STATS_EXT_NDISTINCT);
425  if (build_dependencies)
426  types[ntypes++] = CharGetDatum(STATS_EXT_DEPENDENCIES);
427  if (build_mcv)
428  types[ntypes++] = CharGetDatum(STATS_EXT_MCV);
429  if (build_expressions)
430  types[ntypes++] = CharGetDatum(STATS_EXT_EXPRESSIONS);
431  Assert(ntypes > 0 && ntypes <= lengthof(types));
432  stxkind = construct_array(types, ntypes, CHAROID, 1, true, TYPALIGN_CHAR);
433 
434  /* convert the expressions (if any) to a text datum */
435  if (stxexprs != NIL)
436  {
437  char *exprsString;
438 
439  exprsString = nodeToString(stxexprs);
440  exprsDatum = CStringGetTextDatum(exprsString);
441  pfree(exprsString);
442  }
443  else
444  exprsDatum = (Datum) 0;
445 
446  statrel = table_open(StatisticExtRelationId, RowExclusiveLock);
447 
448  /*
449  * Everything seems fine, so let's build the pg_statistic_ext tuple.
450  */
451  memset(values, 0, sizeof(values));
452  memset(nulls, false, sizeof(nulls));
453 
454  statoid = GetNewOidWithIndex(statrel, StatisticExtOidIndexId,
455  Anum_pg_statistic_ext_oid);
456  values[Anum_pg_statistic_ext_oid - 1] = ObjectIdGetDatum(statoid);
457  values[Anum_pg_statistic_ext_stxrelid - 1] = ObjectIdGetDatum(relid);
458  values[Anum_pg_statistic_ext_stxname - 1] = NameGetDatum(&stxname);
459  values[Anum_pg_statistic_ext_stxnamespace - 1] = ObjectIdGetDatum(namespaceId);
460  values[Anum_pg_statistic_ext_stxstattarget - 1] = Int32GetDatum(-1);
461  values[Anum_pg_statistic_ext_stxowner - 1] = ObjectIdGetDatum(stxowner);
462  values[Anum_pg_statistic_ext_stxkeys - 1] = PointerGetDatum(stxkeys);
463  values[Anum_pg_statistic_ext_stxkind - 1] = PointerGetDatum(stxkind);
464 
465  values[Anum_pg_statistic_ext_stxexprs - 1] = exprsDatum;
466  if (exprsDatum == (Datum) 0)
467  nulls[Anum_pg_statistic_ext_stxexprs - 1] = true;
468 
469  /* insert it into pg_statistic_ext */
470  htup = heap_form_tuple(statrel->rd_att, values, nulls);
471  CatalogTupleInsert(statrel, htup);
472  heap_freetuple(htup);
473 
475 
476  /*
477  * Also build the pg_statistic_ext_data tuple, to hold the actual
478  * statistics data.
479  */
480  datarel = table_open(StatisticExtDataRelationId, RowExclusiveLock);
481 
482  memset(datavalues, 0, sizeof(datavalues));
483  memset(datanulls, false, sizeof(datanulls));
484 
485  datavalues[Anum_pg_statistic_ext_data_stxoid - 1] = ObjectIdGetDatum(statoid);
486 
487  /* no statistics built yet */
488  datanulls[Anum_pg_statistic_ext_data_stxdndistinct - 1] = true;
489  datanulls[Anum_pg_statistic_ext_data_stxddependencies - 1] = true;
490  datanulls[Anum_pg_statistic_ext_data_stxdmcv - 1] = true;
491  datanulls[Anum_pg_statistic_ext_data_stxdexpr - 1] = true;
492 
493  /* insert it into pg_statistic_ext_data */
494  htup = heap_form_tuple(datarel->rd_att, datavalues, datanulls);
495  CatalogTupleInsert(datarel, htup);
496  heap_freetuple(htup);
497 
499 
500  InvokeObjectPostCreateHook(StatisticExtRelationId, statoid, 0);
501 
502  /*
503  * Invalidate relcache so that others see the new statistics object.
504  */
506 
507  relation_close(rel, NoLock);
508 
509  /*
510  * Add an AUTO dependency on each column used in the stats, so that the
511  * stats object goes away if any or all of them get dropped.
512  */
513  ObjectAddressSet(myself, StatisticExtRelationId, statoid);
514 
515  /* add dependencies for plain column references */
516  for (i = 0; i < nattnums; i++)
517  {
518  ObjectAddressSubSet(parentobject, RelationRelationId, relid, attnums[i]);
519  recordDependencyOn(&myself, &parentobject, DEPENDENCY_AUTO);
520  }
521 
522  /*
523  * If there are no dependencies on a column, give the statistics an auto
524  * dependency on the whole table. In most cases, this will be redundant,
525  * but it might not be if the statistics expressions contain no Vars
526  * (which might seem strange but possible). This is consistent with what
527  * we do for indexes in index_create.
528  *
529  * XXX We intentionally don't consider the expressions before adding this
530  * dependency, because recordDependencyOnSingleRelExpr may not create any
531  * dependencies for whole-row Vars.
532  */
533  if (!nattnums)
534  {
535  ObjectAddressSet(parentobject, RelationRelationId, relid);
536  recordDependencyOn(&myself, &parentobject, DEPENDENCY_AUTO);
537  }
538 
539  /*
540  * Store dependencies on anything mentioned in statistics expressions,
541  * just like we do for index expressions.
542  */
543  if (stxexprs)
545  (Node *) stxexprs,
546  relid,
548  DEPENDENCY_AUTO, false);
549 
550  /*
551  * Also add dependencies on namespace and owner. These are required
552  * because the stats object might have a different namespace and/or owner
553  * than the underlying table(s).
554  */
555  ObjectAddressSet(parentobject, NamespaceRelationId, namespaceId);
556  recordDependencyOn(&myself, &parentobject, DEPENDENCY_NORMAL);
557 
558  recordDependencyOnOwner(StatisticExtRelationId, statoid, stxowner);
559 
560  /*
561  * XXX probably there should be a recordDependencyOnCurrentExtension call
562  * here too, but we'd have to add support for ALTER EXTENSION ADD/DROP
563  * STATISTICS, which is more work than it seems worth.
564  */
565 
566  /* Add any requested comment */
567  if (stmt->stxcomment != NULL)
568  CreateComments(statoid, StatisticExtRelationId, 0,
569  stmt->stxcomment);
570 
571  /* Return stats object's address */
572  return myself;
573 }
signed short int16
Definition: c.h:428
int errdetail_relkind_not_supported(char relkind)
Definition: pg_class.c:24
#define NIL
Definition: pg_list.h:65
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
void CreateComments(Oid oid, Oid classoid, int32 subid, const char *comment)
Definition: comment.c:143
#define IsA(nodeptr, _type_)
Definition: nodes.h:590
#define NameGetDatum(X)
Definition: postgres.h:639
static char * ChooseExtendedStatisticName(const char *name1, const char *name2, const char *label, Oid namespaceid)
Definition: statscmds.c:747
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
bool IsSystemRelation(Relation relation)
Definition: catalog.c:74
char * name
Definition: parsenodes.h:2930
struct typedefs * types
Definition: ecpg.c:29
bool equal(const void *a, const void *b)
Definition: equalfuncs.c:3122
Oid GetUserId(void)
Definition: miscinit.c:478
void namestrcpy(Name name, const char *str)
Definition: name.c:233
Oid QualifiedNameGetCreationNamespace(List *names, char **objname_p)
Definition: namespace.c:3040
#define PointerGetDatum(X)
Definition: postgres.h:600
int2vector * buildint2vector(const int16 *int2s, int n)
Definition: int.c:114
ArrayType * construct_array(Datum *elems, int nelems, Oid elmtype, int elmlen, bool elmbyval, char elmalign)
Definition: arrayfuncs.c:3318
Definition: nodes.h:539
#define strVal(v)
Definition: value.h:54
int errcode(int sqlerrcode)
Definition: elog.c:698
char * format_type_be(Oid type_oid)
Definition: format_type.c:339
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:163
#define lengthof(array)
Definition: c.h:734
Form_pg_class rd_rel
Definition: rel.h:109
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
void pfree(void *pointer)
Definition: mcxt.c:1169
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
NameData attname
Definition: pg_attribute.h:41
Node * expr
Definition: parsenodes.h:2931
#define lfirst_node(type, lc)
Definition: pg_list.h:172
Definition: c.h:675
#define NoLock
Definition: lockdefs.h:34
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:622
#define RelationGetRelationName(relation)
Definition: rel.h:511
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:207
static int compare_int16(const void *a, const void *b)
Definition: statscmds.c:51
List * lappend(List *list, void *datum)
Definition: list.c:336
Definition: c.h:649
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
Relation relation_openrv(const RangeVar *relation, LOCKMODE lockmode)
Definition: relation.c:138
TupleDesc rd_att
Definition: rel.h:110
bool allowSystemTableMods
Definition: globals.c:123
TypeCacheEntry * lookup_type_cache(Oid type_id, int flags)
Definition: typcache.c:339
#define InvalidOid
Definition: postgres_ext.h:36
#define ereport(elevel,...)
Definition: elog.h:157
#define NOTICE
Definition: elog.h:37
#define ShareUpdateExclusiveLock
Definition: lockdefs.h:39
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: relation.c:206
#define Assert(condition)
Definition: c.h:804
#define lfirst(lc)
Definition: pg_list.h:169
Definition: value.h:42
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4818
static char * ChooseExtendedStatisticNameAddition(List *exprs)
Definition: statscmds.c:789
void recordDependencyOnSingleRelExpr(const ObjectAddress *depender, Node *expr, Oid relId, DependencyType behavior, DependencyType self_behavior, bool reverse_self)
Definition: dependency.c:1611
Oid exprType(const Node *expr)
Definition: nodeFuncs.c:41
static int list_length(const List *l)
Definition: pg_list.h:149
#define SearchSysCacheExists2(cacheId, key1, key2)
Definition: syscache.h:186
HeapTuple SearchSysCacheAttName(Oid relid, const char *attname)
Definition: syscache.c:1268
#define ObjectAddressSubSet(addr, class_id, object_id, object_sub_id)
Definition: objectaddress.h:33
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define CharGetDatum(X)
Definition: postgres.h:460
void CacheInvalidateRelcache(Relation relation)
Definition: inval.c:1279
static Datum values[MAXATTR]
Definition: bootstrap.c:166
#define Int32GetDatum(X)
Definition: postgres.h:523
#define STATS_MAX_DIMENSIONS
Definition: statistics.h:19
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:909
int i
ObjectType get_relkind_objtype(char relkind)
#define TYPECACHE_LT_OPR
Definition: typcache.h:137
#define CStringGetTextDatum(s)
Definition: builtins.h:82
char * nodeToString(const void *obj)
Definition: outfuncs.c:4542
#define qsort(a, b, c, d)
Definition: port.h:504
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
Definition: pg_list.h:50
#define RelationGetRelid(relation)
Definition: rel.h:477
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221
#define RelationGetNamespace(relation)
Definition: rel.h:518

◆ CreateTransform()

ObjectAddress CreateTransform ( CreateTransformStmt stmt)

Definition at line 1799 of file functioncmds.c.

References ACL_EXECUTE, ACL_USAGE, aclcheck_error(), aclcheck_error_type(), ACLCHECK_NOT_OWNER, ACLCHECK_OK, add_exact_object_address(), CatalogTupleInsert(), CatalogTupleUpdate(), check_transform_function(), deleteDependencyRecordsFor(), DEPENDENCY_NORMAL, elog, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errmsg(), ERROR, format_type_be(), free_object_addresses(), CreateTransformStmt::fromsql, get_language_oid(), get_typtype(), GetNewOidWithIndex(), GETSTRUCT, GetUserId(), heap_form_tuple(), heap_freetuple(), heap_modify_tuple(), HeapTupleIsValid, InvalidOid, InvokeObjectPostCreateHook, CreateTransformStmt::lang, LookupFuncWithArgs(), MemSet, NameListToString(), new_object_addresses(), OBJECT_FUNCTION, OBJECT_LANGUAGE, ObjectAddressSet, ObjectIdGetDatum, ObjectWithArgs::objname, OidIsValid, pg_language_aclcheck(), pg_proc_aclcheck(), pg_proc_ownercheck(), pg_type_aclcheck(), pg_type_ownercheck(), PROCOID, record_object_address_dependencies(), recordDependencyOnCurrentExtension(), RelationGetDescr, ReleaseSysCache(), CreateTransformStmt::replace, RowExclusiveLock, SearchSysCache1(), SearchSysCache2(), HeapTupleData::t_self, table_close(), table_open(), CreateTransformStmt::tosql, TRFTYPELANG, CreateTransformStmt::type_name, TypeNameToString(), typenameTypeId(), and values.

Referenced by ProcessUtilitySlow().

1800 {
1801  Oid typeid;
1802  char typtype;
1803  Oid langid;
1804  Oid fromsqlfuncid;
1805  Oid tosqlfuncid;
1806  AclResult aclresult;
1807  Form_pg_proc procstruct;
1808  Datum values[Natts_pg_transform];
1809  bool nulls[Natts_pg_transform];
1810  bool replaces[Natts_pg_transform];
1811  Oid transformid;
1812  HeapTuple tuple;
1813  HeapTuple newtuple;
1814  Relation relation;
1815  ObjectAddress myself,
1816  referenced;
1817  ObjectAddresses *addrs;
1818  bool is_replace;
1819 
1820  /*
1821  * Get the type
1822  */
1823  typeid = typenameTypeId(NULL, stmt->type_name);
1824  typtype = get_typtype(typeid);
1825 
1826  if (typtype == TYPTYPE_PSEUDO)
1827  ereport(ERROR,
1828  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1829  errmsg("data type %s is a pseudo-type",
1830  TypeNameToString(stmt->type_name))));
1831 
1832  if (typtype == TYPTYPE_DOMAIN)
1833  ereport(ERROR,
1834  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1835  errmsg("data type %s is a domain",
1836  TypeNameToString(stmt->type_name))));
1837 
1838  if (!pg_type_ownercheck(typeid, GetUserId()))
1840 
1841  aclresult = pg_type_aclcheck(typeid, GetUserId(), ACL_USAGE);
1842  if (aclresult != ACLCHECK_OK)
1843  aclcheck_error_type(aclresult, typeid);
1844 
1845  /*
1846  * Get the language
1847  */
1848  langid = get_language_oid(stmt->lang, false);
1849 
1850  aclresult = pg_language_aclcheck(langid, GetUserId(), ACL_USAGE);
1851  if (aclresult != ACLCHECK_OK)
1852  aclcheck_error(aclresult, OBJECT_LANGUAGE, stmt->lang);
1853 
1854  /*
1855  * Get the functions
1856  */
1857  if (stmt->fromsql)
1858  {
1859  fromsqlfuncid = LookupFuncWithArgs(OBJECT_FUNCTION, stmt->fromsql, false);
1860 
1861  if (!pg_proc_ownercheck(fromsqlfuncid, GetUserId()))
1863 
1864  aclresult = pg_proc_aclcheck(fromsqlfuncid, GetUserId(), ACL_EXECUTE);
1865  if (aclresult != ACLCHECK_OK)
1867 
1868  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(fromsqlfuncid));
1869  if (!HeapTupleIsValid(tuple))
1870  elog(ERROR, "cache lookup failed for function %u", fromsqlfuncid);
1871  procstruct = (Form_pg_proc) GETSTRUCT(tuple);
1872  if (procstruct->prorettype != INTERNALOID)
1873  ereport(ERROR,
1874  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1875  errmsg("return data type of FROM SQL function must be %s",
1876  "internal")));
1877  check_transform_function(procstruct);
1878  ReleaseSysCache(tuple);
1879  }
1880  else
1881  fromsqlfuncid = InvalidOid;
1882 
1883  if (stmt->tosql)
1884  {
1885  tosqlfuncid = LookupFuncWithArgs(OBJECT_FUNCTION, stmt->tosql, false);
1886 
1887  if (!pg_proc_ownercheck(tosqlfuncid, GetUserId()))
1889 
1890  aclresult = pg_proc_aclcheck(tosqlfuncid, GetUserId(), ACL_EXECUTE);
1891  if (aclresult != ACLCHECK_OK)
1893 
1894  tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(tosqlfuncid));
1895  if (!HeapTupleIsValid(tuple))
1896  elog(ERROR, "cache lookup failed for function %u", tosqlfuncid);
1897  procstruct = (Form_pg_proc) GETSTRUCT(tuple);
1898  if (procstruct->prorettype != typeid)
1899  ereport(ERROR,
1900  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1901  errmsg("return data type of TO SQL function must be the transform data type")));
1902  check_transform_function(procstruct);
1903  ReleaseSysCache(tuple);
1904  }
1905  else
1906  tosqlfuncid = InvalidOid;
1907 
1908  /*
1909  * Ready to go
1910  */
1911  values[Anum_pg_transform_trftype - 1] = ObjectIdGetDatum(typeid);
1912  values[Anum_pg_transform_trflang - 1] = ObjectIdGetDatum(langid);
1913  values[Anum_pg_transform_trffromsql - 1] = ObjectIdGetDatum(fromsqlfuncid);
1914  values[Anum_pg_transform_trftosql - 1] = ObjectIdGetDatum(tosqlfuncid);
1915 
1916  MemSet(nulls, false, sizeof(nulls));
1917 
1918  relation = table_open(TransformRelationId, RowExclusiveLock);
1919 
1920  tuple = SearchSysCache2(TRFTYPELANG,
1921  ObjectIdGetDatum(typeid),
1922  ObjectIdGetDatum(langid));
1923  if (HeapTupleIsValid(tuple))
1924  {
1926 
1927  if (!stmt->replace)
1928  ereport(ERROR,
1930  errmsg("transform for type %s language \"%s\" already exists",
1931  format_type_be(typeid),
1932  stmt->lang)));
1933 
1934  MemSet(replaces, false, sizeof(replaces));
1935  replaces[Anum_pg_transform_trffromsql - 1] = true;
1936  replaces[Anum_pg_transform_trftosql - 1] = true;
1937 
1938  newtuple = heap_modify_tuple(tuple, RelationGetDescr(relation), values, nulls, replaces);
1939  CatalogTupleUpdate(relation, &newtuple->t_self, newtuple);
1940 
1941  transformid = form->oid;
1942  ReleaseSysCache(tuple);
1943  is_replace = true;
1944  }
1945  else
1946  {
1947  transformid = GetNewOidWithIndex(relation, TransformOidIndexId,
1948  Anum_pg_transform_oid);
1949  values[Anum_pg_transform_oid - 1] = ObjectIdGetDatum(transformid);
1950  newtuple = heap_form_tuple(RelationGetDescr(relation), values, nulls);
1951  CatalogTupleInsert(relation, newtuple);
1952  is_replace = false;
1953  }
1954 
1955  if (is_replace)
1956  deleteDependencyRecordsFor(TransformRelationId, transformid, true);
1957 
1958  addrs = new_object_addresses();
1959 
1960  /* make dependency entries */
1961  ObjectAddressSet(myself, TransformRelationId, transformid);
1962 
1963  /* dependency on language */
1964  ObjectAddressSet(referenced, LanguageRelationId, langid);
1965  add_exact_object_address(&referenced, addrs);
1966 
1967  /* dependency on type */
1968  ObjectAddressSet(referenced, TypeRelationId, typeid);
1969  add_exact_object_address(&referenced, addrs);
1970 
1971  /* dependencies on functions */
1972  if (OidIsValid(fromsqlfuncid))
1973  {
1974  ObjectAddressSet(referenced, ProcedureRelationId, fromsqlfuncid);
1975  add_exact_object_address(&referenced, addrs);
1976  }
1977  if (OidIsValid(tosqlfuncid))
1978  {
1979  ObjectAddressSet(referenced, ProcedureRelationId, tosqlfuncid);
1980  add_exact_object_address(&referenced, addrs);
1981  }
1982 
1984  free_object_addresses(addrs);
1985 
1986  /* dependency on extension */
1987  recordDependencyOnCurrentExtension(&myself, is_replace);
1988 
1989  /* Post creation hook for new transform */
1990  InvokeObjectPostCreateHook(TransformRelationId, transformid, 0);
1991 
1992  heap_freetuple(newtuple);
1993 
1994  table_close(relation, RowExclusiveLock);
1995 
1996  return myself;
1997 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
ObjectWithArgs * tosql
Definition: parsenodes.h:3528
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
static void check_transform_function(Form_pg_proc procstruct)
#define GETSTRUCT(TUP)
Definition: htup_details.h:654
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
#define RelationGetDescr(relation)
Definition: rel.h:503
Oid GetUserId(void)
Definition: miscinit.c:478
char * TypeNameToString(const TypeName *typeName)
Definition: parse_type.c:476
void record_object_address_dependencies(const ObjectAddress *depender, ObjectAddresses *referenced, DependencyType behavior)
Definition: dependency.c:2691
long deleteDependencyRecordsFor(Oid classId, Oid objectId, bool skipExtensionDeps)
Definition: pg_depend.c:236
Oid get_language_oid(const char *langname, bool missing_ok)
Definition: proclang.c:228
int errcode(int sqlerrcode)
Definition: elog.c:698
char get_typtype(Oid typid)
Definition: lsyscache.c:2576
#define MemSet(start, val, len)
Definition: c.h:1008
char * format_type_be(Oid type_oid)
Definition: format_type.c:339
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2482
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2427
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2722
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
bool pg_type_ownercheck(Oid type_oid, Oid roleid)
Definition: aclchk.c:4844
#define OidIsValid(objectId)
Definition: c.h:710
AclResult pg_language_aclcheck(Oid lang_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4730
void aclcheck_error_type(AclResult aclerr, Oid typeOid)
Definition: aclchk.c:3621
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3308
FormData_pg_transform * Form_pg_transform
Definition: pg_transform.h:43
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
#define ERROR
Definition: elog.h:46
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ACL_USAGE
Definition: parsenodes.h:90
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1127
char * NameListToString(List *names)
Definition: namespace.c:3147
AclResult
Definition: acl.h:177
uintptr_t Datum
Definition: postgres.h:411
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1175
FormData_pg_proc * Form_pg_proc
Definition: pg_proc.h:136
#define InvalidOid
Definition: postgres_ext.h:36
ObjectWithArgs * fromsql
Definition: parsenodes.h:3527
#define ereport(elevel,...)
Definition: elog.h:157
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:184
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:301
HeapTuple SearchSysCache2(int cacheId, Datum key1, Datum key2)
Definition: syscache.c:1138
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
TypeName * type_name
Definition: parsenodes.h:3525
static Datum values[MAXATTR]
Definition: bootstrap.c:166
int errmsg(const char *fmt,...)
Definition: elog.c:909
#define ACL_EXECUTE
Definition: parsenodes.h:89
#define elog(elevel,...)
Definition: elog.h:232
AclResult pg_proc_aclcheck(Oid proc_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4718
Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func, bool missing_ok)
Definition: parse_func.c:2207
AclResult pg_type_aclcheck(Oid type_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4806
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:1113
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:221
bool pg_proc_ownercheck(Oid proc_oid, Oid roleid)
Definition: aclchk.c:4896
Oid typenameTypeId(ParseState *pstate, const TypeName *typeName)
Definition: parse_type.c:291

◆ CreateUserMapping()

ObjectAddress CreateUserMapping ( CreateUserMappingStmt stmt)

Definition at line 1091 of file foreigncmds.c.

References ACL_ID_PUBLIC, CatalogTupleInsert(), ObjectAddress::classId, DatumGetPointer, DEPENDENCY_NORMAL, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errmsg(), ERROR, ForeignServer::fdwid, ForeignDataWrapper::fdwvalidator, get_rolespec_oid(), GetForeignDataWrapper(), GetForeignServerByName(), GetNewOidWithIndex(), GetSysCacheOid2, heap_form_tuple(), heap_freetuple(), CreateUserMappingStmt::if_not_exists, InvalidObjectAddress, InvokeObjectPostCreateHook, MappingUserName, NOTICE, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, CreateUserMappingStmt::options, PointerGetDatum, PointerIsValid, RelationData::rd_att, recordDependencyOn(), recordDependencyOnOwner(), ROLESPEC_PUBLIC, RoleSpec::roletype, RowExclusiveLock, ForeignServer::serverid, CreateUserMappingStmt::servername, table_close(), table_open(), transformGenericOptions(), CreateUserMappingStmt::user, user_mapping_ddl_aclcheck(), and values.

Referenced by ProcessUtilitySlow().

1092 {
1093  Relation rel;
1094  Datum useoptions;
1095  Datum values[Natts_pg_user_mapping];
1096  bool nulls[Natts_pg_user_mapping];
1097  HeapTuple tuple;
1098  Oid useId;
1099  Oid umId;
1100  ObjectAddress myself;
1101  ObjectAddress referenced;
1102  ForeignServer *srv;
1103  ForeignDataWrapper *fdw;
1104  RoleSpec *role = (RoleSpec *) stmt->user;
1105 
1106  rel = table_open(UserMappingRelationId, RowExclusiveLock);
1107 
1108  if (role->roletype == ROLESPEC_PUBLIC)
1109  useId = ACL_ID_PUBLIC;
1110  else
1111  useId = get_rolespec_oid(stmt->user, false);
1112 
1113  /* Check that the server exists. */
1114  srv = GetForeignServerByName(stmt->servername, false);
1115 
1116  user_mapping_ddl_aclcheck(useId, srv->serverid, stmt->servername);
1117 
1118  /*
1119  * Check that the user mapping is unique within server.
1120  */
1121  umId = GetSysCacheOid2(USERMAPPINGUSERSERVER, Anum_pg_user_mapping_oid,
1122  ObjectIdGetDatum(useId),
1123  ObjectIdGetDatum(srv->serverid));
1124 
1125  if (OidIsValid(umId))
1126  {
1127  if (stmt->if_not_exists)
1128  {
1129  ereport(NOTICE,
1131  errmsg("user mapping for \"%s\" already exists for server \"%s\", skipping",
1132  MappingUserName(useId),
1133  stmt->servername)));
1134 
1136  return InvalidObjectAddress;
1137  }
1138  else
1139  ereport(ERROR,
1141  errmsg("user mapping for \"%s\" already exists for server \"%s\"",
1142  MappingUserName(useId),
1143  stmt->servername)));
1144  }
1145 
1146  fdw = GetForeignDataWrapper(srv->fdwid);
1147 
1148  /*
1149  * Insert tuple into pg_user_mapping.
1150  */
1151  memset(values, 0, sizeof(values));
1152  memset(nulls, false, sizeof(nulls));
1153 
1154  umId = GetNewOidWithIndex(rel, UserMappingOidIndexId,
1155  Anum_pg_user_mapping_oid);
1156  values[Anum_pg_user_mapping_oid - 1] = ObjectIdGetDatum(umId);
1157  values[Anum_pg_user_mapping_umuser - 1] = ObjectIdGetDatum(useId);
1158  values[Anum_pg_user_mapping_umserver - 1] = ObjectIdGetDatum(srv->serverid);
1159 
1160  /* Add user options */
1161  useoptions = transformGenericOptions(UserMappingRelationId,
1162  PointerGetDatum(NULL),
1163  stmt->options,
1164  fdw->fdwvalidator);
1165 
1166  if (PointerIsValid(DatumGetPointer(useoptions)))
1167  values[Anum_pg_user_mapping_umoptions - 1] = useoptions;
1168  else
1169  nulls[Anum_pg_user_mapping_umoptions - 1] = true;
1170 
1171  tuple = heap_form_tuple(rel->rd_att, values, nulls);
1172 
1173  CatalogTupleInsert(rel, tuple);
1174 
1175  heap_freetuple(tuple);
1176 
1177  /* Add dependency on the server */
1178  myself.classId = UserMappingRelationId;
1179  myself.objectId = umId;
1180  myself.objectSubId = 0;
1181 
1182  referenced.classId = ForeignServerRelationId;
1183  referenced.objectId = srv->serverid;
1184  referenced.objectSubId = 0;
1185  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
1186 
1187  if (OidIsValid(useId))
1188  {
1189  /* Record the mapped user dependency */
1190  recordDependencyOnOwner(UserMappingRelationId, umId, useId);
1191  }
1192 
1193  /*
1194  * Perhaps someday there should be a recordDependencyOnCurrentExtension
1195  * call here; but since roles aren't members of extensions, it seems like
1196  * user mappings shouldn't be either. Note that the grammar and pg_dump
1197  * would need to be extended too if we change this.
1198  */
1199 
1200  /* Post creation hook for new user mapping */
1201  InvokeObjectPostCreateHook(UserMappingRelationId, umId, 0);
1202 
1204 
1205  return myself;
1206 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:381
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:151
Datum transformGenericOptions(Oid catalogId, Datum oldOptions, List *options, Oid fdwvalidator)
Definition: foreigncmds.c:110
#define PointerGetDatum(X)
Definition: postgres.h:600
int errcode(int sqlerrcode)
Definition: elog.c:698
static void user_mapping_ddl_aclcheck(Oid umuserid, Oid serverid, const char *servername)
Definition: foreigncmds.c:1066
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1020
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:163