PostgreSQL Source Code  git master
catalog.c File Reference
#include "postgres.h"
#include <fcntl.h>
#include <unistd.h>
#include "access/genam.h"
#include "access/htup_details.h"
#include "access/sysattr.h"
#include "access/table.h"
#include "access/transam.h"
#include "catalog/catalog.h"
#include "catalog/namespace.h"
#include "catalog/pg_auth_members.h"
#include "catalog/pg_authid.h"
#include "catalog/pg_database.h"
#include "catalog/pg_db_role_setting.h"
#include "catalog/pg_largeobject.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_parameter_acl.h"
#include "catalog/pg_replication_origin.h"
#include "catalog/pg_shdepend.h"
#include "catalog/pg_shdescription.h"
#include "catalog/pg_shseclabel.h"
#include "catalog/pg_subscription.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_type.h"
#include "miscadmin.h"
#include "storage/fd.h"
#include "utils/fmgroids.h"
#include "utils/fmgrprotos.h"
#include "utils/rel.h"
#include "utils/snapmgr.h"
#include "utils/syscache.h"
Include dependency graph for catalog.c:

Go to the source code of this file.

Macros

#define GETNEWOID_LOG_THRESHOLD   1000000
 
#define GETNEWOID_LOG_MAX_INTERVAL   128000000
 

Functions

bool IsSystemRelation (Relation relation)
 
bool IsSystemClass (Oid relid, Form_pg_class reltuple)
 
bool IsCatalogRelation (Relation relation)
 
bool IsCatalogRelationOid (Oid relid)
 
bool IsToastRelation (Relation relation)
 
bool IsToastClass (Form_pg_class reltuple)
 
bool IsCatalogNamespace (Oid namespaceId)
 
bool IsToastNamespace (Oid namespaceId)
 
bool IsReservedName (const char *name)
 
bool IsSharedRelation (Oid relationId)
 
bool IsPinnedObject (Oid classId, Oid objectId)
 
Oid GetNewOidWithIndex (Relation relation, Oid indexId, AttrNumber oidcolumn)
 
Oid GetNewRelFileNode (Oid reltablespace, Relation pg_class, char relpersistence)
 
Datum pg_nextoid (PG_FUNCTION_ARGS)
 
Datum pg_stop_making_pinned_objects (PG_FUNCTION_ARGS)
 

Macro Definition Documentation

◆ GETNEWOID_LOG_MAX_INTERVAL

#define GETNEWOID_LOG_MAX_INTERVAL   128000000

Definition at line 57 of file catalog.c.

◆ GETNEWOID_LOG_THRESHOLD

#define GETNEWOID_LOG_THRESHOLD   1000000

Definition at line 56 of file catalog.c.

Function Documentation

◆ GetNewOidWithIndex()

Oid GetNewOidWithIndex ( Relation  relation,
Oid  indexId,
AttrNumber  oidcolumn 
)

Definition at line 391 of file catalog.c.

392 {
393  Oid newOid;
394  SysScanDesc scan;
396  bool collides;
397  uint64 retries = 0;
398  uint64 retries_before_log = GETNEWOID_LOG_THRESHOLD;
399 
400  /* Only system relations are supported */
401  Assert(IsSystemRelation(relation));
402 
403  /* In bootstrap mode, we don't have any indexes to use */
405  return GetNewObjectId();
406 
407  /*
408  * We should never be asked to generate a new pg_type OID during
409  * pg_upgrade; doing so would risk collisions with the OIDs it wants to
410  * assign. Hitting this assert means there's some path where we failed to
411  * ensure that a type OID is determined by commands in the dump script.
412  */
413  Assert(!IsBinaryUpgrade || RelationGetRelid(relation) != TypeRelationId);
414 
415  /* Generate new OIDs until we find one not in the table */
416  do
417  {
419 
420  newOid = GetNewObjectId();
421 
422  ScanKeyInit(&key,
423  oidcolumn,
424  BTEqualStrategyNumber, F_OIDEQ,
425  ObjectIdGetDatum(newOid));
426 
427  /* see notes above about using SnapshotAny */
428  scan = systable_beginscan(relation, indexId, true,
429  SnapshotAny, 1, &key);
430 
431  collides = HeapTupleIsValid(systable_getnext(scan));
432 
433  systable_endscan(scan);
434 
435  /*
436  * Log that we iterate more than GETNEWOID_LOG_THRESHOLD but have not
437  * yet found OID unused in the relation. Then repeat logging with
438  * exponentially increasing intervals until we iterate more than
439  * GETNEWOID_LOG_MAX_INTERVAL. Finally repeat logging every
440  * GETNEWOID_LOG_MAX_INTERVAL unless an unused OID is found. This
441  * logic is necessary not to fill up the server log with the similar
442  * messages.
443  */
444  if (retries >= retries_before_log)
445  {
446  ereport(LOG,
447  (errmsg("still searching for an unused OID in relation \"%s\"",
448  RelationGetRelationName(relation)),
449  errdetail_plural("OID candidates have been checked %llu time, but no unused OID has been found yet.",
450  "OID candidates have been checked %llu times, but no unused OID has been found yet.",
451  retries,
452  (unsigned long long) retries)));
453 
454  /*
455  * Double the number of retries to do before logging next until it
456  * reaches GETNEWOID_LOG_MAX_INTERVAL.
457  */
458  if (retries_before_log * 2 <= GETNEWOID_LOG_MAX_INTERVAL)
459  retries_before_log *= 2;
460  else
461  retries_before_log += GETNEWOID_LOG_MAX_INTERVAL;
462  }
463 
464  retries++;
465  } while (collides);
466 
467  /*
468  * If at least one log message is emitted, also log the completion of OID
469  * assignment.
470  */
471  if (retries > GETNEWOID_LOG_THRESHOLD)
472  {
473  ereport(LOG,
474  (errmsg_plural("new OID has been assigned in relation \"%s\" after %llu retry",
475  "new OID has been assigned in relation \"%s\" after %llu retries",
476  retries,
477  RelationGetRelationName(relation), (unsigned long long) retries)));
478  }
479 
480  return newOid;
481 }
#define GETNEWOID_LOG_THRESHOLD
Definition: catalog.c:56
bool IsSystemRelation(Relation relation)
Definition: catalog.c:75
#define GETNEWOID_LOG_MAX_INTERVAL
Definition: catalog.c:57
int errmsg_plural(const char *fmt_singular, const char *fmt_plural, unsigned long n,...)
Definition: elog.c:1014
int errdetail_plural(const char *fmt_singular, const char *fmt_plural, unsigned long n,...)
Definition: elog.c:1129
int errmsg(const char *fmt,...)
Definition: elog.c:904
#define LOG
Definition: elog.h:25
#define ereport(elevel,...)
Definition: elog.h:143
void systable_endscan(SysScanDesc sysscan)
Definition: genam.c:598
HeapTuple systable_getnext(SysScanDesc sysscan)
Definition: genam.c:505
SysScanDesc systable_beginscan(Relation heapRelation, Oid indexId, bool indexOK, Snapshot snapshot, int nkeys, ScanKey key)
Definition: genam.c:386
bool IsBinaryUpgrade
Definition: globals.c:114
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
Assert(fmt[strlen(fmt) - 1] !='\n')
#define IsBootstrapProcessingMode()
Definition: miscadmin.h:406
#define CHECK_FOR_INTERRUPTS()
Definition: miscadmin.h:121
#define ObjectIdGetDatum(X)
Definition: postgres.h:551
unsigned int Oid
Definition: postgres_ext.h:31
#define RelationGetRelid(relation)
Definition: rel.h:488
#define RelationGetRelationName(relation)
Definition: rel.h:522
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition: scankey.c:76
#define SnapshotAny
Definition: snapmgr.h:67
#define BTEqualStrategyNumber
Definition: stratnum.h:31
Oid GetNewObjectId(void)
Definition: varsup.c:528

References Assert(), BTEqualStrategyNumber, CHECK_FOR_INTERRUPTS, ereport, errdetail_plural(), errmsg(), errmsg_plural(), GetNewObjectId(), GETNEWOID_LOG_MAX_INTERVAL, GETNEWOID_LOG_THRESHOLD, HeapTupleIsValid, IsBinaryUpgrade, IsBootstrapProcessingMode, IsSystemRelation(), sort-test::key, LOG, ObjectIdGetDatum, RelationGetRelationName, RelationGetRelid, ScanKeyInit(), SnapshotAny, systable_beginscan(), systable_endscan(), and systable_getnext().

Referenced by AddEnumLabel(), AssignTypeArrayOid(), AssignTypeMultirangeArrayOid(), AssignTypeMultirangeOid(), CastCreate(), CollationCreate(), ConversionCreate(), CreateAccessMethod(), CreateConstraintEntry(), createdb(), CreateForeignDataWrapper(), CreateForeignServer(), CreateOpFamily(), CreatePolicy(), CreateProceduralLanguage(), CreatePublication(), CreateRole(), CreateStatistics(), CreateSubscription(), CreateTableSpace(), CreateTransform(), CreateTriggerFiringOn(), CreateUserMapping(), DefineOpClass(), DefineTSConfiguration(), DefineTSDictionary(), DefineTSParser(), DefineTSTemplate(), EnumValuesCreate(), GetNewRelFileNode(), insert_event_trigger_tuple(), InsertExtensionTuple(), InsertRule(), LargeObjectCreate(), NamespaceCreate(), OperatorCreate(), OperatorShellMake(), ParameterAclCreate(), pg_nextoid(), ProcedureCreate(), publication_add_relation(), publication_add_schema(), SetDefaultACL(), StoreAttrDefault(), storeOperators(), storeProcedures(), toast_save_datum(), TypeCreate(), and TypeShellMake().

◆ GetNewRelFileNode()

Oid GetNewRelFileNode ( Oid  reltablespace,
Relation  pg_class,
char  relpersistence 
)

Definition at line 500 of file catalog.c.

501 {
502  RelFileNodeBackend rnode;
503  char *rpath;
504  bool collides;
505  BackendId backend;
506 
507  /*
508  * If we ever get here during pg_upgrade, there's something wrong; all
509  * relfilenode assignments during a binary-upgrade run should be
510  * determined by commands in the dump script.
511  */
513 
514  switch (relpersistence)
515  {
516  case RELPERSISTENCE_TEMP:
517  backend = BackendIdForTempRelations();
518  break;
519  case RELPERSISTENCE_UNLOGGED:
520  case RELPERSISTENCE_PERMANENT:
521  backend = InvalidBackendId;
522  break;
523  default:
524  elog(ERROR, "invalid relpersistence: %c", relpersistence);
525  return InvalidOid; /* placate compiler */
526  }
527 
528  /* This logic should match RelationInitPhysicalAddr */
529  rnode.node.spcNode = reltablespace ? reltablespace : MyDatabaseTableSpace;
530  rnode.node.dbNode = (rnode.node.spcNode == GLOBALTABLESPACE_OID) ? InvalidOid : MyDatabaseId;
531 
532  /*
533  * The relpath will vary based on the backend ID, so we must initialize
534  * that properly here to make sure that any collisions based on filename
535  * are properly detected.
536  */
537  rnode.backend = backend;
538 
539  do
540  {
542 
543  /* Generate the OID */
544  if (pg_class)
545  rnode.node.relNode = GetNewOidWithIndex(pg_class, ClassOidIndexId,
546  Anum_pg_class_oid);
547  else
548  rnode.node.relNode = GetNewObjectId();
549 
550  /* Check for existing file of same name */
551  rpath = relpath(rnode, MAIN_FORKNUM);
552 
553  if (access(rpath, F_OK) == 0)
554  {
555  /* definite collision */
556  collides = true;
557  }
558  else
559  {
560  /*
561  * Here we have a little bit of a dilemma: if errno is something
562  * other than ENOENT, should we declare a collision and loop? In
563  * practice it seems best to go ahead regardless of the errno. If
564  * there is a colliding file we will get an smgr failure when we
565  * attempt to create the new relation file.
566  */
567  collides = false;
568  }
569 
570  pfree(rpath);
571  } while (collides);
572 
573  return rnode.node.relNode;
574 }
int BackendId
Definition: backendid.h:21
#define BackendIdForTempRelations()
Definition: backendid.h:34
#define InvalidBackendId
Definition: backendid.h:23
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:391
#define ERROR
Definition: elog.h:33
#define elog(elevel,...)
Definition: elog.h:218
Oid MyDatabaseTableSpace
Definition: globals.c:91
Oid MyDatabaseId
Definition: globals.c:89
void pfree(void *pointer)
Definition: mcxt.c:1175
#define InvalidOid
Definition: postgres_ext.h:36
@ MAIN_FORKNUM
Definition: relpath.h:43
#define relpath(rnode, forknum)
Definition: relpath.h:87
BackendId backend
Definition: relfilenode.h:75
RelFileNode node
Definition: relfilenode.h:74

References Assert(), RelFileNodeBackend::backend, BackendIdForTempRelations, CHECK_FOR_INTERRUPTS, RelFileNode::dbNode, elog, ERROR, GetNewObjectId(), GetNewOidWithIndex(), InvalidBackendId, InvalidOid, IsBinaryUpgrade, MAIN_FORKNUM, MyDatabaseId, MyDatabaseTableSpace, RelFileNodeBackend::node, pfree(), RelFileNode::relNode, relpath, and RelFileNode::spcNode.

Referenced by ATExecSetTableSpace(), heap_create_with_catalog(), index_create(), and RelationSetNewRelfilenode().

◆ IsCatalogNamespace()

bool IsCatalogNamespace ( Oid  namespaceId)

Definition at line 184 of file catalog.c.

185 {
186  return namespaceId == PG_CATALOG_NAMESPACE;
187 }

Referenced by AlterTableMoveAll(), check_publication_add_schema(), heap_create(), and RelationBuildLocalRelation().

◆ IsCatalogRelation()

◆ IsCatalogRelationOid()

bool IsCatalogRelationOid ( Oid  relid)

Definition at line 122 of file catalog.c.

123 {
124  /*
125  * We consider a relation to be a system catalog if it has a pinned OID.
126  * This includes all the defined catalogs, their indexes, and their TOAST
127  * tables and indexes.
128  *
129  * This rule excludes the relations in information_schema, which are not
130  * integral to the system and can be treated the same as user relations.
131  * (Since it's valid to drop and recreate information_schema, any rule
132  * that did not act this way would be wrong.)
133  *
134  * This test is reliable since an OID wraparound will skip this range of
135  * OIDs; see GetNewObjectId().
136  */
137  return (relid < (Oid) FirstUnpinnedObjectId);
138 }
#define FirstUnpinnedObjectId
Definition: transam.h:196

References FirstUnpinnedObjectId.

Referenced by check_relation_privileges(), is_publishable_class(), IsCatalogRelation(), IsSystemClass(), ReindexMultipleTables(), and ReindexRelationConcurrently().

◆ IsPinnedObject()

bool IsPinnedObject ( Oid  classId,
Oid  objectId 
)

Definition at line 313 of file catalog.c.

314 {
315  /*
316  * Objects with OIDs above FirstUnpinnedObjectId are never pinned. Since
317  * the OID generator skips this range when wrapping around, this check
318  * guarantees that user-defined objects are never considered pinned.
319  */
320  if (objectId >= FirstUnpinnedObjectId)
321  return false;
322 
323  /*
324  * Large objects are never pinned. We need this special case because
325  * their OIDs can be user-assigned.
326  */
327  if (classId == LargeObjectRelationId)
328  return false;
329 
330  /*
331  * There are a few objects defined in the catalog .dat files that, as a
332  * matter of policy, we prefer not to treat as pinned. We used to handle
333  * that by excluding them from pg_depend, but it's just as easy to
334  * hard-wire their OIDs here. (If the user does indeed drop and recreate
335  * them, they'll have new but certainly-unpinned OIDs, so no problem.)
336  *
337  * Checking both classId and objectId is overkill, since OIDs below
338  * FirstGenbkiObjectId should be globally unique, but do it anyway for
339  * robustness.
340  */
341 
342  /* the public namespace is not pinned */
343  if (classId == NamespaceRelationId &&
344  objectId == PG_PUBLIC_NAMESPACE)
345  return false;
346 
347  /*
348  * Databases are never pinned. It might seem that it'd be prudent to pin
349  * at least template0; but we do this intentionally so that template0 and
350  * template1 can be rebuilt from each other, thus letting them serve as
351  * mutual backups (as long as you've not modified template1, anyway).
352  */
353  if (classId == DatabaseRelationId)
354  return false;
355 
356  /*
357  * All other initdb-created objects are pinned. This is overkill (the
358  * system doesn't really depend on having every last weird datatype, for
359  * instance) but generating only the minimum required set of dependencies
360  * seems hard, and enforcing an accurate list would be much more expensive
361  * than the simple range test used here.
362  */
363  return true;
364 }

References FirstUnpinnedObjectId.

Referenced by checkSharedDependencies(), DropTableSpace(), findDependentObjects(), isObjectPinned(), recordSharedDependencyOn(), shdepChangeDep(), shdepDropOwned(), shdepReassignOwned(), and updateAclDependencies().

◆ IsReservedName()

bool IsReservedName ( const char *  name)

Definition at line 219 of file catalog.c.

220 {
221  /* ugly coding for speed */
222  return (name[0] == 'p' &&
223  name[1] == 'g' &&
224  name[2] == '_');
225 }
const char * name
Definition: encode.c:561

References name.

Referenced by check_rolespec_name(), CreateRole(), CreateSchemaCommand(), CreateTableSpace(), pg_replication_origin_create(), RenameRole(), RenameSchema(), and RenameTableSpace().

◆ IsSharedRelation()

bool IsSharedRelation ( Oid  relationId)

Definition at line 245 of file catalog.c.

246 {
247  /* These are the shared catalogs (look for BKI_SHARED_RELATION) */
248  if (relationId == AuthIdRelationId ||
249  relationId == AuthMemRelationId ||
250  relationId == DatabaseRelationId ||
251  relationId == DbRoleSettingRelationId ||
252  relationId == ParameterAclRelationId ||
253  relationId == ReplicationOriginRelationId ||
254  relationId == SharedDependRelationId ||
255  relationId == SharedDescriptionRelationId ||
256  relationId == SharedSecLabelRelationId ||
257  relationId == SubscriptionRelationId ||
258  relationId == TableSpaceRelationId)
259  return true;
260  /* These are their indexes */
261  if (relationId == AuthIdOidIndexId ||
262  relationId == AuthIdRolnameIndexId ||
263  relationId == AuthMemMemRoleIndexId ||
264  relationId == AuthMemRoleMemIndexId ||
265  relationId == DatabaseNameIndexId ||
266  relationId == DatabaseOidIndexId ||
267  relationId == DbRoleSettingDatidRolidIndexId ||
268  relationId == ParameterAclOidIndexId ||
269  relationId == ParameterAclParnameIndexId ||
270  relationId == ReplicationOriginIdentIndex ||
271  relationId == ReplicationOriginNameIndex ||
272  relationId == SharedDependDependerIndexId ||
273  relationId == SharedDependReferenceIndexId ||
274  relationId == SharedDescriptionObjIndexId ||
275  relationId == SharedSecLabelObjectIndexId ||
276  relationId == SubscriptionNameIndexId ||
277  relationId == SubscriptionObjectIndexId ||
278  relationId == TablespaceNameIndexId ||
279  relationId == TablespaceOidIndexId)
280  return true;
281  /* These are their toast tables and toast indexes */
282  if (relationId == PgAuthidToastTable ||
283  relationId == PgAuthidToastIndex ||
284  relationId == PgDatabaseToastTable ||
285  relationId == PgDatabaseToastIndex ||
286  relationId == PgDbRoleSettingToastTable ||
287  relationId == PgDbRoleSettingToastIndex ||
288  relationId == PgParameterAclToastTable ||
289  relationId == PgParameterAclToastIndex ||
290  relationId == PgReplicationOriginToastTable ||
291  relationId == PgReplicationOriginToastIndex ||
292  relationId == PgShdescriptionToastTable ||
293  relationId == PgShdescriptionToastIndex ||
294  relationId == PgShseclabelToastTable ||
295  relationId == PgShseclabelToastIndex ||
296  relationId == PgSubscriptionToastTable ||
297  relationId == PgSubscriptionToastIndex ||
298  relationId == PgTablespaceToastTable ||
299  relationId == PgTablespaceToastIndex)
300  return true;
301  return false;
302 }

Referenced by CacheInvalidateCatalog(), CacheInvalidateHeapTuple(), classIdGetDbId(), DeleteSecurityLabel(), get_object_address(), get_tables_to_cluster_partitioned(), GetSecurityLabel(), RelationBuildLocalRelation(), SetLocktagRelationOid(), SetSecurityLabel(), and UpdateLogicalMappings().

◆ IsSystemClass()

bool IsSystemClass ( Oid  relid,
Form_pg_class  reltuple 
)

◆ IsSystemRelation()

◆ IsToastClass()

bool IsToastClass ( Form_pg_class  reltuple)

Definition at line 167 of file catalog.c.

168 {
169  Oid relnamespace = reltuple->relnamespace;
170 
171  return IsToastNamespace(relnamespace);
172 }
bool IsToastNamespace(Oid namespaceId)
Definition: catalog.c:202

References IsToastNamespace().

Referenced by IsSystemClass().

◆ IsToastNamespace()

bool IsToastNamespace ( Oid  namespaceId)

Definition at line 202 of file catalog.c.

203 {
204  return (namespaceId == PG_TOAST_NAMESPACE) ||
205  isTempToastNamespace(namespaceId);
206 }
bool isTempToastNamespace(Oid namespaceId)
Definition: namespace.c:3215

References isTempToastNamespace().

Referenced by AlterTableMoveAll(), check_publication_add_schema(), heap_create(), IsToastClass(), IsToastRelation(), reindex_index(), reindex_relation(), and ReindexRelationConcurrently().

◆ IsToastRelation()

bool IsToastRelation ( Relation  relation)

Definition at line 147 of file catalog.c.

148 {
149  /*
150  * What we actually check is whether the relation belongs to a pg_toast
151  * namespace. This should be equivalent because of restrictions that are
152  * enforced elsewhere against creating user relations in, or moving
153  * relations into/out of, a pg_toast namespace. Notice also that this
154  * will not say "true" for toast tables belonging to other sessions' temp
155  * tables; we expect that other mechanisms will prevent access to those.
156  */
157  return IsToastNamespace(RelationGetNamespace(relation));
158 }
#define RelationGetNamespace(relation)
Definition: rel.h:529

References IsToastNamespace(), and RelationGetNamespace.

Referenced by CacheInvalidateHeapTuple(), heap_abort_speculative(), heap_insert(), ReorderBufferProcessTXN(), and ReorderBufferToastAppendChunk().

◆ pg_nextoid()

Datum pg_nextoid ( PG_FUNCTION_ARGS  )

Definition at line 584 of file catalog.c.

585 {
586  Oid reloid = PG_GETARG_OID(0);
588  Oid idxoid = PG_GETARG_OID(2);
589  Relation rel;
590  Relation idx;
591  HeapTuple atttuple;
592  Form_pg_attribute attform;
593  AttrNumber attno;
594  Oid newoid;
595 
596  /*
597  * As this function is not intended to be used during normal running, and
598  * only supports system catalogs (which require superuser permissions to
599  * modify), just checking for superuser ought to not obstruct valid
600  * usecases.
601  */
602  if (!superuser())
603  ereport(ERROR,
604  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
605  errmsg("must be superuser to call %s()",
606  "pg_nextoid")));
607 
608  rel = table_open(reloid, RowExclusiveLock);
609  idx = index_open(idxoid, RowExclusiveLock);
610 
611  if (!IsSystemRelation(rel))
612  ereport(ERROR,
613  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
614  errmsg("pg_nextoid() can only be used on system catalogs")));
615 
616  if (idx->rd_index->indrelid != RelationGetRelid(rel))
617  ereport(ERROR,
618  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
619  errmsg("index \"%s\" does not belong to table \"%s\"",
621  RelationGetRelationName(rel))));
622 
623  atttuple = SearchSysCacheAttName(reloid, NameStr(*attname));
624  if (!HeapTupleIsValid(atttuple))
625  ereport(ERROR,
626  (errcode(ERRCODE_UNDEFINED_COLUMN),
627  errmsg("column \"%s\" of relation \"%s\" does not exist",
629 
630  attform = ((Form_pg_attribute) GETSTRUCT(atttuple));
631  attno = attform->attnum;
632 
633  if (attform->atttypid != OIDOID)
634  ereport(ERROR,
635  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
636  errmsg("column \"%s\" is not of type oid",
637  NameStr(*attname))));
638 
640  idx->rd_index->indkey.values[0] != attno)
641  ereport(ERROR,
642  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
643  errmsg("index \"%s\" is not the index for column \"%s\"",
645  NameStr(*attname))));
646 
647  newoid = GetNewOidWithIndex(rel, idxoid, attno);
648 
649  ReleaseSysCache(atttuple);
652 
653  PG_RETURN_OID(newoid);
654 }
Datum idx(PG_FUNCTION_ARGS)
Definition: _int_op.c:259
int16 AttrNumber
Definition: attnum.h:21
#define NameStr(name)
Definition: c.h:681
int errcode(int sqlerrcode)
Definition: elog.c:693
#define PG_GETARG_OID(n)
Definition: fmgr.h:275
#define PG_GETARG_NAME(n)
Definition: fmgr.h:278
#define PG_RETURN_OID(x)
Definition: fmgr.h:360
#define GETSTRUCT(TUP)
Definition: htup_details.h:649
void index_close(Relation relation, LOCKMODE lockmode)
Definition: indexam.c:158
Relation index_open(Oid relationId, LOCKMODE lockmode)
Definition: indexam.c:132
#define RowExclusiveLock
Definition: lockdefs.h:38
NameData attname
Definition: pg_attribute.h:41
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:207
#define IndexRelationGetNumberOfKeyAttributes(relation)
Definition: rel.h:507
Definition: c.h:676
bool superuser(void)
Definition: superuser.c:46
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1221
HeapTuple SearchSysCacheAttName(Oid relid, const char *attname)
Definition: syscache.c:1314
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:167
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

References attname, ereport, errcode(), errmsg(), ERROR, GetNewOidWithIndex(), GETSTRUCT, HeapTupleIsValid, idx(), index_close(), index_open(), IndexRelationGetNumberOfKeyAttributes, IsSystemRelation(), NameStr, PG_GETARG_NAME, PG_GETARG_OID, PG_RETURN_OID, RelationGetRelationName, RelationGetRelid, ReleaseSysCache(), RowExclusiveLock, SearchSysCacheAttName(), superuser(), table_close(), and table_open().

◆ pg_stop_making_pinned_objects()

Datum pg_stop_making_pinned_objects ( PG_FUNCTION_ARGS  )

Definition at line 663 of file catalog.c.

664 {
665  /*
666  * Belt-and-suspenders check, since StopGeneratingPinnedObjectIds will
667  * fail anyway in non-single-user mode.
668  */
669  if (!superuser())
670  ereport(ERROR,
671  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
672  errmsg("must be superuser to call %s()",
673  "pg_stop_making_pinned_objects")));
674 
676 
677  PG_RETURN_VOID();
678 }
#define PG_RETURN_VOID()
Definition: fmgr.h:349
void StopGeneratingPinnedObjectIds(void)
Definition: varsup.c:625

References ereport, errcode(), errmsg(), ERROR, PG_RETURN_VOID, StopGeneratingPinnedObjectIds(), and superuser().