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tablecmds.h File Reference
#include "access/htup.h"
#include "catalog/dependency.h"
#include "catalog/objectaddress.h"
#include "nodes/parsenodes.h"
#include "storage/lock.h"
#include "utils/relcache.h"
Include dependency graph for tablecmds.h:
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Go to the source code of this file.

Functions

ObjectAddress DefineRelation (CreateStmt *stmt, char relkind, Oid ownerId, ObjectAddress *typaddress, const char *queryString)
 
void RemoveRelations (DropStmt *drop)
 
Oid AlterTableLookupRelation (AlterTableStmt *stmt, LOCKMODE lockmode)
 
void AlterTable (Oid relid, LOCKMODE lockmode, AlterTableStmt *stmt)
 
LOCKMODE AlterTableGetLockLevel (List *cmds)
 
void ATExecChangeOwner (Oid relationOid, Oid newOwnerId, bool recursing, LOCKMODE lockmode)
 
void AlterTableInternal (Oid relid, List *cmds, bool recurse)
 
Oid AlterTableMoveAll (AlterTableMoveAllStmt *stmt)
 
ObjectAddress AlterTableNamespace (AlterObjectSchemaStmt *stmt, Oid *oldschema)
 
void AlterTableNamespaceInternal (Relation rel, Oid oldNspOid, Oid nspOid, ObjectAddresses *objsMoved)
 
void AlterRelationNamespaceInternal (Relation classRel, Oid relOid, Oid oldNspOid, Oid newNspOid, bool hasDependEntry, ObjectAddresses *objsMoved)
 
void CheckTableNotInUse (Relation rel, const char *stmt)
 
void ExecuteTruncate (TruncateStmt *stmt)
 
void SetRelationHasSubclass (Oid relationId, bool relhassubclass)
 
ObjectAddress renameatt (RenameStmt *stmt)
 
ObjectAddress renameatt_type (RenameStmt *stmt)
 
ObjectAddress RenameConstraint (RenameStmt *stmt)
 
ObjectAddress RenameRelation (RenameStmt *stmt)
 
void RenameRelationInternal (Oid myrelid, const char *newrelname, bool is_internal)
 
void find_composite_type_dependencies (Oid typeOid, Relation origRelation, const char *origTypeName)
 
void check_of_type (HeapTuple typetuple)
 
void register_on_commit_action (Oid relid, OnCommitAction action)
 
void remove_on_commit_action (Oid relid)
 
void PreCommit_on_commit_actions (void)
 
void AtEOXact_on_commit_actions (bool isCommit)
 
void AtEOSubXact_on_commit_actions (bool isCommit, SubTransactionId mySubid, SubTransactionId parentSubid)
 
void RangeVarCallbackOwnsTable (const RangeVar *relation, Oid relId, Oid oldRelId, void *arg)
 
void RangeVarCallbackOwnsRelation (const RangeVar *relation, Oid relId, Oid oldRelId, void *noCatalogs)
 

Function Documentation

void AlterRelationNamespaceInternal ( Relation  classRel,
Oid  relOid,
Oid  oldNspOid,
Oid  newNspOid,
bool  hasDependEntry,
ObjectAddresses objsMoved 
)

Definition at line 12538 of file tablecmds.c.

References add_exact_object_address(), Assert, CatalogTupleUpdate(), changeDependencyFor(), ObjectAddress::classId, elog, ereport, errcode(), errmsg(), ERROR, get_namespace_name(), get_relname_relid(), GETSTRUCT, heap_freetuple(), HeapTupleIsValid, InvalidOid, InvokeObjectPostAlterHook, NamespaceRelationId, NameStr, object_address_present(), ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, RelationRelationId, RELOID, SearchSysCacheCopy1, and HeapTupleData::t_self.

Referenced by AlterIndexNamespaces(), AlterSeqNamespaces(), AlterTableNamespaceInternal(), and AlterTypeNamespaceInternal().

12542 {
12543  HeapTuple classTup;
12544  Form_pg_class classForm;
12545  ObjectAddress thisobj;
12546  bool already_done = false;
12547 
12548  classTup = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(relOid));
12549  if (!HeapTupleIsValid(classTup))
12550  elog(ERROR, "cache lookup failed for relation %u", relOid);
12551  classForm = (Form_pg_class) GETSTRUCT(classTup);
12552 
12553  Assert(classForm->relnamespace == oldNspOid);
12554 
12555  thisobj.classId = RelationRelationId;
12556  thisobj.objectId = relOid;
12557  thisobj.objectSubId = 0;
12558 
12559  /*
12560  * If the object has already been moved, don't move it again. If it's
12561  * already in the right place, don't move it, but still fire the object
12562  * access hook.
12563  */
12564  already_done = object_address_present(&thisobj, objsMoved);
12565  if (!already_done && oldNspOid != newNspOid)
12566  {
12567  /* check for duplicate name (more friendly than unique-index failure) */
12568  if (get_relname_relid(NameStr(classForm->relname),
12569  newNspOid) != InvalidOid)
12570  ereport(ERROR,
12571  (errcode(ERRCODE_DUPLICATE_TABLE),
12572  errmsg("relation \"%s\" already exists in schema \"%s\"",
12573  NameStr(classForm->relname),
12574  get_namespace_name(newNspOid))));
12575 
12576  /* classTup is a copy, so OK to scribble on */
12577  classForm->relnamespace = newNspOid;
12578 
12579  CatalogTupleUpdate(classRel, &classTup->t_self, classTup);
12580 
12581  /* Update dependency on schema if caller said so */
12582  if (hasDependEntry &&
12584  relOid,
12586  oldNspOid,
12587  newNspOid) != 1)
12588  elog(ERROR, "failed to change schema dependency for relation \"%s\"",
12589  NameStr(classForm->relname));
12590  }
12591  if (!already_done)
12592  {
12593  add_exact_object_address(&thisobj, objsMoved);
12594 
12596  }
12597 
12598  heap_freetuple(classTup);
12599 }
#define NamespaceRelationId
Definition: pg_namespace.h:34
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define RelationRelationId
Definition: pg_class.h:29
bool object_address_present(const ObjectAddress *object, const ObjectAddresses *addrs)
Definition: dependency.c:2154
int errcode(int sqlerrcode)
Definition: elog.c:575
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2094
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1374
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
Oid get_relname_relid(const char *relname, Oid relnamespace)
Definition: lsyscache.c:1683
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3038
#define ereport(elevel, rest)
Definition: elog.h:122
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:163
#define InvalidOid
Definition: postgres_ext.h:36
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define Assert(condition)
Definition: c.h:675
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:161
int errmsg(const char *fmt,...)
Definition: elog.c:797
long changeDependencyFor(Oid classId, Oid objectId, Oid refClassId, Oid oldRefObjectId, Oid newRefObjectId)
Definition: pg_depend.c:295
#define NameStr(name)
Definition: c.h:499
#define elog
Definition: elog.h:219
void AlterTable ( Oid  relid,
LOCKMODE  lockmode,
AlterTableStmt stmt 
)

Definition at line 3094 of file tablecmds.c.

References ATController(), CheckTableNotInUse(), AlterTableStmt::cmds, RangeVar::inh, NoLock, AlterTableStmt::relation, and relation_open().

Referenced by ProcessUtilitySlow().

3095 {
3096  Relation rel;
3097 
3098  /* Caller is required to provide an adequate lock. */
3099  rel = relation_open(relid, NoLock);
3100 
3101  CheckTableNotInUse(rel, "ALTER TABLE");
3102 
3103  ATController(stmt, rel, stmt->cmds, stmt->relation->inh, lockmode);
3104 }
static void ATController(AlterTableStmt *parsetree, Relation rel, List *cmds, bool recurse, LOCKMODE lockmode)
Definition: tablecmds.c:3412
#define NoLock
Definition: lockdefs.h:34
void CheckTableNotInUse(Relation rel, const char *stmt)
Definition: tablecmds.c:3015
bool inh
Definition: primnodes.h:69
RangeVar * relation
Definition: parsenodes.h:1657
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
LOCKMODE AlterTableGetLockLevel ( List cmds)

Definition at line 3163 of file tablecmds.c.

References AccessExclusiveLock, AlterTableGetRelOptionsLockLevel(), AT_AddColumn, AT_AddColumnToView, AT_AddConstraint, AT_AddConstraintRecurse, AT_AddIdentity, AT_AddIndex, AT_AddIndexConstraint, AT_AddInherit, AT_AddOf, AT_AddOids, AT_AlterColumnGenericOptions, AT_AlterColumnType, AT_AlterConstraint, AT_AttachPartition, AT_ChangeOwner, AT_ClusterOn, AT_ColumnDefault, AT_DetachPartition, AT_DisableRowSecurity, AT_DisableRule, AT_DisableTrig, AT_DisableTrigAll, AT_DisableTrigUser, AT_DropCluster, AT_DropColumn, AT_DropConstraint, AT_DropIdentity, AT_DropInherit, AT_DropNotNull, AT_DropOf, AT_DropOids, AT_EnableAlwaysRule, AT_EnableAlwaysTrig, AT_EnableReplicaRule, AT_EnableReplicaTrig, AT_EnableRowSecurity, AT_EnableRule, AT_EnableTrig, AT_EnableTrigAll, AT_EnableTrigUser, AT_ForceRowSecurity, AT_GenericOptions, AT_NoForceRowSecurity, AT_ProcessedConstraint, AT_ReAddConstraint, AT_ReplaceRelOptions, AT_ReplicaIdentity, AT_ResetOptions, AT_ResetRelOptions, AT_SetIdentity, AT_SetLogged, AT_SetNotNull, AT_SetOptions, AT_SetRelOptions, AT_SetStatistics, AT_SetStorage, AT_SetTableSpace, AT_SetUnLogged, AT_ValidateConstraint, CONSTR_EXCLUSION, CONSTR_FOREIGN, CONSTR_PRIMARY, CONSTR_UNIQUE, Constraint::contype, AlterTableCmd::def, elog, ERROR, IsA, lfirst, ShareRowExclusiveLock, ShareUpdateExclusiveLock, and AlterTableCmd::subtype.

Referenced by AlterTableInternal(), and ProcessUtilitySlow().

3164 {
3165  /*
3166  * This only works if we read catalog tables using MVCC snapshots.
3167  */
3168  ListCell *lcmd;
3170 
3171  foreach(lcmd, cmds)
3172  {
3173  AlterTableCmd *cmd = (AlterTableCmd *) lfirst(lcmd);
3174  LOCKMODE cmd_lockmode = AccessExclusiveLock; /* default for compiler */
3175 
3176  switch (cmd->subtype)
3177  {
3178  /*
3179  * These subcommands rewrite the heap, so require full locks.
3180  */
3181  case AT_AddColumn: /* may rewrite heap, in some cases and visible
3182  * to SELECT */
3183  case AT_SetTableSpace: /* must rewrite heap */
3184  case AT_AlterColumnType: /* must rewrite heap */
3185  case AT_AddOids: /* must rewrite heap */
3186  cmd_lockmode = AccessExclusiveLock;
3187  break;
3188 
3189  /*
3190  * These subcommands may require addition of toast tables. If
3191  * we add a toast table to a table currently being scanned, we
3192  * might miss data added to the new toast table by concurrent
3193  * insert transactions.
3194  */
3195  case AT_SetStorage:/* may add toast tables, see
3196  * ATRewriteCatalogs() */
3197  cmd_lockmode = AccessExclusiveLock;
3198  break;
3199 
3200  /*
3201  * Removing constraints can affect SELECTs that have been
3202  * optimised assuming the constraint holds true.
3203  */
3204  case AT_DropConstraint: /* as DROP INDEX */
3205  case AT_DropNotNull: /* may change some SQL plans */
3206  cmd_lockmode = AccessExclusiveLock;
3207  break;
3208 
3209  /*
3210  * Subcommands that may be visible to concurrent SELECTs
3211  */
3212  case AT_DropColumn: /* change visible to SELECT */
3213  case AT_AddColumnToView: /* CREATE VIEW */
3214  case AT_DropOids: /* calls AT_DropColumn */
3215  case AT_EnableAlwaysRule: /* may change SELECT rules */
3216  case AT_EnableReplicaRule: /* may change SELECT rules */
3217  case AT_EnableRule: /* may change SELECT rules */
3218  case AT_DisableRule: /* may change SELECT rules */
3219  cmd_lockmode = AccessExclusiveLock;
3220  break;
3221 
3222  /*
3223  * Changing owner may remove implicit SELECT privileges
3224  */
3225  case AT_ChangeOwner: /* change visible to SELECT */
3226  cmd_lockmode = AccessExclusiveLock;
3227  break;
3228 
3229  /*
3230  * Changing foreign table options may affect optimization.
3231  */
3232  case AT_GenericOptions:
3234  cmd_lockmode = AccessExclusiveLock;
3235  break;
3236 
3237  /*
3238  * These subcommands affect write operations only.
3239  */
3240  case AT_EnableTrig:
3241  case AT_EnableAlwaysTrig:
3242  case AT_EnableReplicaTrig:
3243  case AT_EnableTrigAll:
3244  case AT_EnableTrigUser:
3245  case AT_DisableTrig:
3246  case AT_DisableTrigAll:
3247  case AT_DisableTrigUser:
3248  cmd_lockmode = ShareRowExclusiveLock;
3249  break;
3250 
3251  /*
3252  * These subcommands affect write operations only. XXX
3253  * Theoretically, these could be ShareRowExclusiveLock.
3254  */
3255  case AT_ColumnDefault:
3256  case AT_AlterConstraint:
3257  case AT_AddIndex: /* from ADD CONSTRAINT */
3258  case AT_AddIndexConstraint:
3259  case AT_ReplicaIdentity:
3260  case AT_SetNotNull:
3261  case AT_EnableRowSecurity:
3262  case AT_DisableRowSecurity:
3263  case AT_ForceRowSecurity:
3264  case AT_NoForceRowSecurity:
3265  case AT_AddIdentity:
3266  case AT_DropIdentity:
3267  case AT_SetIdentity:
3268  cmd_lockmode = AccessExclusiveLock;
3269  break;
3270 
3271  case AT_AddConstraint:
3272  case AT_ProcessedConstraint: /* becomes AT_AddConstraint */
3273  case AT_AddConstraintRecurse: /* becomes AT_AddConstraint */
3274  case AT_ReAddConstraint: /* becomes AT_AddConstraint */
3275  if (IsA(cmd->def, Constraint))
3276  {
3277  Constraint *con = (Constraint *) cmd->def;
3278 
3279  switch (con->contype)
3280  {
3281  case CONSTR_EXCLUSION:
3282  case CONSTR_PRIMARY:
3283  case CONSTR_UNIQUE:
3284 
3285  /*
3286  * Cases essentially the same as CREATE INDEX. We
3287  * could reduce the lock strength to ShareLock if
3288  * we can work out how to allow concurrent catalog
3289  * updates. XXX Might be set down to
3290  * ShareRowExclusiveLock but requires further
3291  * analysis.
3292  */
3293  cmd_lockmode = AccessExclusiveLock;
3294  break;
3295  case CONSTR_FOREIGN:
3296 
3297  /*
3298  * We add triggers to both tables when we add a
3299  * Foreign Key, so the lock level must be at least
3300  * as strong as CREATE TRIGGER.
3301  */
3302  cmd_lockmode = ShareRowExclusiveLock;
3303  break;
3304 
3305  default:
3306  cmd_lockmode = AccessExclusiveLock;
3307  }
3308  }
3309  break;
3310 
3311  /*
3312  * These subcommands affect inheritance behaviour. Queries
3313  * started before us will continue to see the old inheritance
3314  * behaviour, while queries started after we commit will see
3315  * new behaviour. No need to prevent reads or writes to the
3316  * subtable while we hook it up though. Changing the TupDesc
3317  * may be a problem, so keep highest lock.
3318  */
3319  case AT_AddInherit:
3320  case AT_DropInherit:
3321  cmd_lockmode = AccessExclusiveLock;
3322  break;
3323 
3324  /*
3325  * These subcommands affect implicit row type conversion. They
3326  * have affects similar to CREATE/DROP CAST on queries. don't
3327  * provide for invalidating parse trees as a result of such
3328  * changes, so we keep these at AccessExclusiveLock.
3329  */
3330  case AT_AddOf:
3331  case AT_DropOf:
3332  cmd_lockmode = AccessExclusiveLock;
3333  break;
3334 
3335  /*
3336  * Only used by CREATE OR REPLACE VIEW which must conflict
3337  * with an SELECTs currently using the view.
3338  */
3339  case AT_ReplaceRelOptions:
3340  cmd_lockmode = AccessExclusiveLock;
3341  break;
3342 
3343  /*
3344  * These subcommands affect general strategies for performance
3345  * and maintenance, though don't change the semantic results
3346  * from normal data reads and writes. Delaying an ALTER TABLE
3347  * behind currently active writes only delays the point where
3348  * the new strategy begins to take effect, so there is no
3349  * benefit in waiting. In this case the minimum restriction
3350  * applies: we don't currently allow concurrent catalog
3351  * updates.
3352  */
3353  case AT_SetStatistics: /* Uses MVCC in getTableAttrs() */
3354  case AT_ClusterOn: /* Uses MVCC in getIndexes() */
3355  case AT_DropCluster: /* Uses MVCC in getIndexes() */
3356  case AT_SetOptions: /* Uses MVCC in getTableAttrs() */
3357  case AT_ResetOptions: /* Uses MVCC in getTableAttrs() */
3358  cmd_lockmode = ShareUpdateExclusiveLock;
3359  break;
3360 
3361  case AT_SetLogged:
3362  case AT_SetUnLogged:
3363  cmd_lockmode = AccessExclusiveLock;
3364  break;
3365 
3366  case AT_ValidateConstraint: /* Uses MVCC in
3367  * getConstraints() */
3368  cmd_lockmode = ShareUpdateExclusiveLock;
3369  break;
3370 
3371  /*
3372  * Rel options are more complex than first appears. Options
3373  * are set here for tables, views and indexes; for historical
3374  * reasons these can all be used with ALTER TABLE, so we can't
3375  * decide between them using the basic grammar.
3376  */
3377  case AT_SetRelOptions: /* Uses MVCC in getIndexes() and
3378  * getTables() */
3379  case AT_ResetRelOptions: /* Uses MVCC in getIndexes() and
3380  * getTables() */
3381  cmd_lockmode = AlterTableGetRelOptionsLockLevel((List *) cmd->def);
3382  break;
3383 
3384  case AT_AttachPartition:
3385  case AT_DetachPartition:
3386  cmd_lockmode = AccessExclusiveLock;
3387  break;
3388 
3389  default: /* oops */
3390  elog(ERROR, "unrecognized alter table type: %d",
3391  (int) cmd->subtype);
3392  break;
3393  }
3394 
3395  /*
3396  * Take the greatest lockmode from any subcommand
3397  */
3398  if (cmd_lockmode > lockmode)
3399  lockmode = cmd_lockmode;
3400  }
3401 
3402  return lockmode;
3403 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:560
int LOCKMODE
Definition: lockdefs.h:26
AlterTableType subtype
Definition: parsenodes.h:1744
#define ERROR
Definition: elog.h:43
#define ShareUpdateExclusiveLock
Definition: lockdefs.h:39
#define lfirst(lc)
Definition: pg_list.h:106
#define ShareRowExclusiveLock
Definition: lockdefs.h:42
LOCKMODE AlterTableGetRelOptionsLockLevel(List *defList)
Definition: reloptions.c:1528
#define AccessExclusiveLock
Definition: lockdefs.h:46
ConstrType contype
Definition: parsenodes.h:2045
#define elog
Definition: elog.h:219
Definition: pg_list.h:45
void AlterTableInternal ( Oid  relid,
List cmds,
bool  recurse 
)

Definition at line 3118 of file tablecmds.c.

References AlterTableGetLockLevel(), ATController(), EventTriggerAlterTableRelid(), NULL, and relation_open().

Referenced by AlterTableMoveAll(), DefineRelation(), DefineVirtualRelation(), and index_check_primary_key().

3119 {
3120  Relation rel;
3121  LOCKMODE lockmode = AlterTableGetLockLevel(cmds);
3122 
3123  rel = relation_open(relid, lockmode);
3124 
3126 
3127  ATController(NULL, rel, cmds, recurse, lockmode);
3128 }
int LOCKMODE
Definition: lockdefs.h:26
static void ATController(AlterTableStmt *parsetree, Relation rel, List *cmds, bool recurse, LOCKMODE lockmode)
Definition: tablecmds.c:3412
LOCKMODE AlterTableGetLockLevel(List *cmds)
Definition: tablecmds.c:3163
#define NULL
Definition: c.h:229
void EventTriggerAlterTableRelid(Oid objectId)
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
Oid AlterTableLookupRelation ( AlterTableStmt stmt,
LOCKMODE  lockmode 
)

Definition at line 3044 of file tablecmds.c.

References AlterTableStmt::missing_ok, RangeVarCallbackForAlterRelation(), RangeVarGetRelidExtended(), and AlterTableStmt::relation.

Referenced by ProcessUtilitySlow().

3045 {
3046  return RangeVarGetRelidExtended(stmt->relation, lockmode, stmt->missing_ok, false,
3048  (void *) stmt);
3049 }
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:13015
RangeVar * relation
Definition: parsenodes.h:1657
Oid AlterTableMoveAll ( AlterTableMoveAllStmt stmt)

Definition at line 10637 of file tablecmds.c.

References AccessExclusiveLock, AccessShareLock, ACL_CREATE, ACL_KIND_CLASS, ACL_KIND_TABLESPACE, aclcheck_error(), ACLCHECK_NOT_OWNER, ACLCHECK_OK, AlterTableInternal(), Anum_pg_class_reltablespace, AT_SetTableSpace, BTEqualStrategyNumber, ConditionalLockRelationOid(), ereport, errcode(), errmsg(), ERROR, EventTriggerAlterTableEnd(), EventTriggerAlterTableStart(), ForwardScanDirection, get_namespace_name(), get_tablespace_name(), get_tablespace_oid(), GETSTRUCT, GetUserId(), GLOBALTABLESPACE_OID, heap_beginscan_catalog(), heap_close, heap_endscan(), heap_getnext(), heap_open(), HeapTupleGetOid, InvalidOid, isAnyTempNamespace(), IsSystemNamespace(), lappend(), lappend_oid(), lfirst_oid, list_member_oid(), LockRelationOid(), makeNode, MyDatabaseTableSpace, AlterTableCmd::name, NameStr, AlterTableMoveAllStmt::new_tablespacename, NIL, NOTICE, AlterTableMoveAllStmt::nowait, NULL, OBJECT_INDEX, OBJECT_MATVIEW, OBJECT_TABLE, ObjectIdGetDatum, AlterTableMoveAllStmt::objtype, OidIsValid, AlterTableMoveAllStmt::orig_tablespacename, pg_class_ownercheck(), pg_tablespace_aclcheck(), PG_TOAST_NAMESPACE, RelationRelationId, RELKIND_INDEX, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, AlterTableMoveAllStmt::roles, roleSpecsToIds(), ScanKeyInit(), and AlterTableCmd::subtype.

Referenced by ProcessUtilitySlow().

10638 {
10639  List *relations = NIL;
10640  ListCell *l;
10641  ScanKeyData key[1];
10642  Relation rel;
10643  HeapScanDesc scan;
10644  HeapTuple tuple;
10645  Oid orig_tablespaceoid;
10646  Oid new_tablespaceoid;
10647  List *role_oids = roleSpecsToIds(stmt->roles);
10648 
10649  /* Ensure we were not asked to move something we can't */
10650  if (stmt->objtype != OBJECT_TABLE && stmt->objtype != OBJECT_INDEX &&
10651  stmt->objtype != OBJECT_MATVIEW)
10652  ereport(ERROR,
10653  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
10654  errmsg("only tables, indexes, and materialized views exist in tablespaces")));
10655 
10656  /* Get the orig and new tablespace OIDs */
10657  orig_tablespaceoid = get_tablespace_oid(stmt->orig_tablespacename, false);
10658  new_tablespaceoid = get_tablespace_oid(stmt->new_tablespacename, false);
10659 
10660  /* Can't move shared relations in to or out of pg_global */
10661  /* This is also checked by ATExecSetTableSpace, but nice to stop earlier */
10662  if (orig_tablespaceoid == GLOBALTABLESPACE_OID ||
10663  new_tablespaceoid == GLOBALTABLESPACE_OID)
10664  ereport(ERROR,
10665  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
10666  errmsg("cannot move relations in to or out of pg_global tablespace")));
10667 
10668  /*
10669  * Must have CREATE rights on the new tablespace, unless it is the
10670  * database default tablespace (which all users implicitly have CREATE
10671  * rights on).
10672  */
10673  if (OidIsValid(new_tablespaceoid) && new_tablespaceoid != MyDatabaseTableSpace)
10674  {
10675  AclResult aclresult;
10676 
10677  aclresult = pg_tablespace_aclcheck(new_tablespaceoid, GetUserId(),
10678  ACL_CREATE);
10679  if (aclresult != ACLCHECK_OK)
10681  get_tablespace_name(new_tablespaceoid));
10682  }
10683 
10684  /*
10685  * Now that the checks are done, check if we should set either to
10686  * InvalidOid because it is our database's default tablespace.
10687  */
10688  if (orig_tablespaceoid == MyDatabaseTableSpace)
10689  orig_tablespaceoid = InvalidOid;
10690 
10691  if (new_tablespaceoid == MyDatabaseTableSpace)
10692  new_tablespaceoid = InvalidOid;
10693 
10694  /* no-op */
10695  if (orig_tablespaceoid == new_tablespaceoid)
10696  return new_tablespaceoid;
10697 
10698  /*
10699  * Walk the list of objects in the tablespace and move them. This will
10700  * only find objects in our database, of course.
10701  */
10702  ScanKeyInit(&key[0],
10704  BTEqualStrategyNumber, F_OIDEQ,
10705  ObjectIdGetDatum(orig_tablespaceoid));
10706 
10708  scan = heap_beginscan_catalog(rel, 1, key);
10709  while ((tuple = heap_getnext(scan, ForwardScanDirection)) != NULL)
10710  {
10711  Oid relOid = HeapTupleGetOid(tuple);
10712  Form_pg_class relForm;
10713 
10714  relForm = (Form_pg_class) GETSTRUCT(tuple);
10715 
10716  /*
10717  * Do not move objects in pg_catalog as part of this, if an admin
10718  * really wishes to do so, they can issue the individual ALTER
10719  * commands directly.
10720  *
10721  * Also, explicitly avoid any shared tables, temp tables, or TOAST
10722  * (TOAST will be moved with the main table).
10723  */
10724  if (IsSystemNamespace(relForm->relnamespace) || relForm->relisshared ||
10725  isAnyTempNamespace(relForm->relnamespace) ||
10726  relForm->relnamespace == PG_TOAST_NAMESPACE)
10727  continue;
10728 
10729  /* Only move the object type requested */
10730  if ((stmt->objtype == OBJECT_TABLE &&
10731  relForm->relkind != RELKIND_RELATION &&
10732  relForm->relkind != RELKIND_PARTITIONED_TABLE) ||
10733  (stmt->objtype == OBJECT_INDEX &&
10734  relForm->relkind != RELKIND_INDEX) ||
10735  (stmt->objtype == OBJECT_MATVIEW &&
10736  relForm->relkind != RELKIND_MATVIEW))
10737  continue;
10738 
10739  /* Check if we are only moving objects owned by certain roles */
10740  if (role_oids != NIL && !list_member_oid(role_oids, relForm->relowner))
10741  continue;
10742 
10743  /*
10744  * Handle permissions-checking here since we are locking the tables
10745  * and also to avoid doing a bunch of work only to fail part-way. Note
10746  * that permissions will also be checked by AlterTableInternal().
10747  *
10748  * Caller must be considered an owner on the table to move it.
10749  */
10750  if (!pg_class_ownercheck(relOid, GetUserId()))
10752  NameStr(relForm->relname));
10753 
10754  if (stmt->nowait &&
10756  ereport(ERROR,
10757  (errcode(ERRCODE_OBJECT_IN_USE),
10758  errmsg("aborting because lock on relation \"%s.%s\" is not available",
10759  get_namespace_name(relForm->relnamespace),
10760  NameStr(relForm->relname))));
10761  else
10763 
10764  /* Add to our list of objects to move */
10765  relations = lappend_oid(relations, relOid);
10766  }
10767 
10768  heap_endscan(scan);
10770 
10771  if (relations == NIL)
10772  ereport(NOTICE,
10773  (errcode(ERRCODE_NO_DATA_FOUND),
10774  errmsg("no matching relations in tablespace \"%s\" found",
10775  orig_tablespaceoid == InvalidOid ? "(database default)" :
10776  get_tablespace_name(orig_tablespaceoid))));
10777 
10778  /* Everything is locked, loop through and move all of the relations. */
10779  foreach(l, relations)
10780  {
10781  List *cmds = NIL;
10783 
10784  cmd->subtype = AT_SetTableSpace;
10785  cmd->name = stmt->new_tablespacename;
10786 
10787  cmds = lappend(cmds, cmd);
10788 
10790  /* OID is set by AlterTableInternal */
10791  AlterTableInternal(lfirst_oid(l), cmds, false);
10793  }
10794 
10795  return new_tablespaceoid;
10796 }
#define NIL
Definition: pg_list.h:69
bool ConditionalLockRelationOid(Oid relid, LOCKMODE lockmode)
Definition: lmgr.c:138
Oid get_tablespace_oid(const char *tablespacename, bool missing_ok)
Definition: tablespace.c:1380
AclResult pg_tablespace_aclcheck(Oid spc_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4496
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
void heap_endscan(HeapScanDesc scan)
Definition: heapam.c:1578
Oid GetUserId(void)
Definition: miscinit.c:283
#define RelationRelationId
Definition: pg_class.h:29
#define Anum_pg_class_reltablespace
Definition: pg_class.h:110
#define RELKIND_MATVIEW
Definition: pg_class.h:165
#define AccessShareLock
Definition: lockdefs.h:36
#define GLOBALTABLESPACE_OID
Definition: pg_tablespace.h:64
Definition: nodes.h:509
int errcode(int sqlerrcode)
Definition: elog.c:575
AlterTableType subtype
Definition: parsenodes.h:1744
#define heap_close(r, l)
Definition: heapam.h:97
unsigned int Oid
Definition: postgres_ext.h:31
#define PG_TOAST_NAMESPACE
Definition: pg_namespace.h:74
List * lappend_oid(List *list, Oid datum)
Definition: list.c:164
#define OidIsValid(objectId)
Definition: c.h:538
Oid MyDatabaseTableSpace
Definition: globals.c:78
void EventTriggerAlterTableStart(Node *parsetree)
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define ACL_CREATE
Definition: parsenodes.h:82
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3038
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
HeapScanDesc heap_beginscan_catalog(Relation relation, int nkeys, ScanKey key)
Definition: heapam.c:1399
#define ereport(elevel, rest)
Definition: elog.h:122
List * lappend(List *list, void *datum)
Definition: list.c:128
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
AclResult
Definition: acl.h:170
HeapTuple heap_getnext(HeapScanDesc scan, ScanDirection direction)
Definition: heapam.c:1794
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
bool IsSystemNamespace(Oid namespaceId)
Definition: catalog.c:162
#define InvalidOid
Definition: postgres_ext.h:36
#define NOTICE
Definition: elog.h:37
#define makeNode(_type_)
Definition: nodes.h:557
List * roleSpecsToIds(List *memberNames)
Definition: user.c:1384
bool list_member_oid(const List *list, Oid datum)
Definition: list.c:505
#define NULL
Definition: c.h:229
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4546
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
void AlterTableInternal(Oid relid, List *cmds, bool recurse)
Definition: tablecmds.c:3118
#define AccessExclusiveLock
Definition: lockdefs.h:46
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * get_tablespace_name(Oid spc_oid)
Definition: tablespace.c:1426
#define NameStr(name)
Definition: c.h:499
#define RELKIND_INDEX
Definition: pg_class.h:161
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition: scankey.c:76
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:3046
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
void LockRelationOid(Oid relid, LOCKMODE lockmode)
Definition: lmgr.c:105
#define RELKIND_RELATION
Definition: pg_class.h:160
Definition: pg_list.h:45
#define BTEqualStrategyNumber
Definition: stratnum.h:31
#define lfirst_oid(lc)
Definition: pg_list.h:108
void EventTriggerAlterTableEnd(void)
ObjectAddress AlterTableNamespace ( AlterObjectSchemaStmt stmt,
Oid oldschema 
)

Definition at line 12429 of file tablecmds.c.

References AccessExclusiveLock, AlterTableNamespaceInternal(), CheckSetNamespace(), DEPENDENCY_AUTO, DEPENDENCY_INTERNAL, ereport, errcode(), errdetail(), errmsg(), ERROR, free_object_addresses(), get_rel_name(), InvalidObjectAddress, makeRangeVar(), AlterObjectSchemaStmt::missing_ok, new_object_addresses(), AlterObjectSchemaStmt::newschema, NoLock, NOTICE, NULL, ObjectAddressSet, OidIsValid, RangeVarCallbackForAlterRelation(), RangeVarGetAndCheckCreationNamespace(), RangeVarGetRelidExtended(), RelationData::rd_rel, AlterObjectSchemaStmt::relation, relation_close(), relation_open(), RelationGetNamespace, RelationGetRelationName, RelationRelationId, RELKIND_SEQUENCE, RangeVar::relname, and sequenceIsOwned().

Referenced by ExecAlterObjectSchemaStmt().

12430 {
12431  Relation rel;
12432  Oid relid;
12433  Oid oldNspOid;
12434  Oid nspOid;
12435  RangeVar *newrv;
12436  ObjectAddresses *objsMoved;
12437  ObjectAddress myself;
12438 
12440  stmt->missing_ok, false,
12442  (void *) stmt);
12443 
12444  if (!OidIsValid(relid))
12445  {
12446  ereport(NOTICE,
12447  (errmsg("relation \"%s\" does not exist, skipping",
12448  stmt->relation->relname)));
12449  return InvalidObjectAddress;
12450  }
12451 
12452  rel = relation_open(relid, NoLock);
12453 
12454  oldNspOid = RelationGetNamespace(rel);
12455 
12456  /* If it's an owned sequence, disallow moving it by itself. */
12457  if (rel->rd_rel->relkind == RELKIND_SEQUENCE)
12458  {
12459  Oid tableId;
12460  int32 colId;
12461 
12462  if (sequenceIsOwned(relid, DEPENDENCY_AUTO, &tableId, &colId) ||
12463  sequenceIsOwned(relid, DEPENDENCY_INTERNAL, &tableId, &colId))
12464  ereport(ERROR,
12465  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
12466  errmsg("cannot move an owned sequence into another schema"),
12467  errdetail("Sequence \"%s\" is linked to table \"%s\".",
12469  get_rel_name(tableId))));
12470  }
12471 
12472  /* Get and lock schema OID and check its permissions. */
12473  newrv = makeRangeVar(stmt->newschema, RelationGetRelationName(rel), -1);
12475 
12476  /* common checks on switching namespaces */
12477  CheckSetNamespace(oldNspOid, nspOid);
12478 
12479  objsMoved = new_object_addresses();
12480  AlterTableNamespaceInternal(rel, oldNspOid, nspOid, objsMoved);
12481  free_object_addresses(objsMoved);
12482 
12483  ObjectAddressSet(myself, RelationRelationId, relid);
12484 
12485  if (oldschema)
12486  *oldschema = oldNspOid;
12487 
12488  /* close rel, but keep lock until commit */
12489  relation_close(rel, NoLock);
12490 
12491  return myself;
12492 }
bool sequenceIsOwned(Oid seqId, char deptype, Oid *tableId, int32 *colId)
Definition: pg_depend.c:500
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
#define RelationRelationId
Definition: pg_class.h:29
int errcode(int sqlerrcode)
Definition: elog.c:575
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2039
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2310
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
signed int int32
Definition: c.h:256
char * relname
Definition: primnodes.h:68
#define ERROR
Definition: elog.h:43
void AlterTableNamespaceInternal(Relation rel, Oid oldNspOid, Oid nspOid, ObjectAddresses *objsMoved)
Definition: tablecmds.c:12500
#define NoLock
Definition: lockdefs.h:34
static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:13015
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:437
#define ereport(elevel, rest)
Definition: elog.h:122
void CheckSetNamespace(Oid oldNspOid, Oid nspOid)
Definition: namespace.c:2818
Oid RangeVarGetAndCheckCreationNamespace(RangeVar *relation, LOCKMODE lockmode, Oid *existing_relation_id)
Definition: namespace.c:507
#define NOTICE
Definition: elog.h:37
#define NULL
Definition: c.h:229
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define AccessExclusiveLock
Definition: lockdefs.h:46
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:797
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
char * get_rel_name(Oid relid)
Definition: lsyscache.c:1726
RangeVar * makeRangeVar(char *schemaname, char *relname, int location)
Definition: makefuncs.c:419
#define RelationGetNamespace(relation)
Definition: rel.h:444
void AlterTableNamespaceInternal ( Relation  rel,
Oid  oldNspOid,
Oid  nspOid,
ObjectAddresses objsMoved 
)

Definition at line 12500 of file tablecmds.c.

References AccessExclusiveLock, AlterConstraintNamespaces(), AlterIndexNamespaces(), AlterRelationNamespaceInternal(), AlterSeqNamespaces(), AlterTypeNamespaceInternal(), Assert, heap_close, heap_open(), NULL, RelationData::rd_rel, RelationGetRelid, RelationRelationId, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, and RowExclusiveLock.

Referenced by AlterObjectNamespace_oid(), and AlterTableNamespace().

12502 {
12503  Relation classRel;
12504 
12505  Assert(objsMoved != NULL);
12506 
12507  /* OK, modify the pg_class row and pg_depend entry */
12509 
12510  AlterRelationNamespaceInternal(classRel, RelationGetRelid(rel), oldNspOid,
12511  nspOid, true, objsMoved);
12512 
12513  /* Fix the table's row type too */
12514  AlterTypeNamespaceInternal(rel->rd_rel->reltype,
12515  nspOid, false, false, objsMoved);
12516 
12517  /* Fix other dependent stuff */
12518  if (rel->rd_rel->relkind == RELKIND_RELATION ||
12519  rel->rd_rel->relkind == RELKIND_MATVIEW ||
12520  rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
12521  {
12522  AlterIndexNamespaces(classRel, rel, oldNspOid, nspOid, objsMoved);
12523  AlterSeqNamespaces(classRel, rel, oldNspOid, nspOid,
12524  objsMoved, AccessExclusiveLock);
12525  AlterConstraintNamespaces(RelationGetRelid(rel), oldNspOid, nspOid,
12526  false, objsMoved);
12527  }
12528 
12529  heap_close(classRel, RowExclusiveLock);
12530 }
#define RelationRelationId
Definition: pg_class.h:29
#define RELKIND_MATVIEW
Definition: pg_class.h:165
Oid AlterTypeNamespaceInternal(Oid typeOid, Oid nspOid, bool isImplicitArray, bool errorOnTableType, ObjectAddresses *objsMoved)
Definition: typecmds.c:3491
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:114
static void AlterIndexNamespaces(Relation classRel, Relation rel, Oid oldNspOid, Oid newNspOid, ObjectAddresses *objsMoved)
Definition: tablecmds.c:12608
void AlterConstraintNamespaces(Oid ownerId, Oid oldNspId, Oid newNspId, bool isType, ObjectAddresses *objsMoved)
static void AlterSeqNamespaces(Relation classRel, Relation rel, Oid oldNspOid, Oid newNspOid, ObjectAddresses *objsMoved, LOCKMODE lockmode)
Definition: tablecmds.c:12653
#define RowExclusiveLock
Definition: lockdefs.h:38
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
void AlterRelationNamespaceInternal(Relation classRel, Oid relOid, Oid oldNspOid, Oid newNspOid, bool hasDependEntry, ObjectAddresses *objsMoved)
Definition: tablecmds.c:12538
#define AccessExclusiveLock
Definition: lockdefs.h:46
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RelationGetRelid(relation)
Definition: rel.h:417
void AtEOSubXact_on_commit_actions ( bool  isCommit,
SubTransactionId  mySubid,
SubTransactionId  parentSubid 
)

Definition at line 12905 of file tablecmds.c.

References OnCommitItem::creating_subid, OnCommitItem::deleting_subid, InvalidSubTransactionId, lfirst, list_delete_cell(), list_head(), lnext, NULL, and pfree().

Referenced by AbortSubTransaction(), and CommitSubTransaction().

12907 {
12908  ListCell *cur_item;
12909  ListCell *prev_item;
12910 
12911  prev_item = NULL;
12912  cur_item = list_head(on_commits);
12913 
12914  while (cur_item != NULL)
12915  {
12916  OnCommitItem *oc = (OnCommitItem *) lfirst(cur_item);
12917 
12918  if (!isCommit && oc->creating_subid == mySubid)
12919  {
12920  /* cur_item must be removed */
12921  on_commits = list_delete_cell(on_commits, cur_item, prev_item);
12922  pfree(oc);
12923  if (prev_item)
12924  cur_item = lnext(prev_item);
12925  else
12926  cur_item = list_head(on_commits);
12927  }
12928  else
12929  {
12930  /* cur_item must be preserved */
12931  if (oc->creating_subid == mySubid)
12932  oc->creating_subid = parentSubid;
12933  if (oc->deleting_subid == mySubid)
12934  oc->deleting_subid = isCommit ? parentSubid : InvalidSubTransactionId;
12935  prev_item = cur_item;
12936  cur_item = lnext(prev_item);
12937  }
12938  }
12939 }
SubTransactionId creating_subid
Definition: tablecmds.c:120
void pfree(void *pointer)
Definition: mcxt.c:950
static List * on_commits
Definition: tablecmds.c:124
static ListCell * list_head(const List *l)
Definition: pg_list.h:77
#define lnext(lc)
Definition: pg_list.h:105
List * list_delete_cell(List *list, ListCell *cell, ListCell *prev)
Definition: list.c:528
SubTransactionId deleting_subid
Definition: tablecmds.c:121
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
#define InvalidSubTransactionId
Definition: c.h:403
void AtEOXact_on_commit_actions ( bool  isCommit)

Definition at line 12863 of file tablecmds.c.

References OnCommitItem::creating_subid, OnCommitItem::deleting_subid, InvalidSubTransactionId, lfirst, list_delete_cell(), list_head(), lnext, NULL, and pfree().

Referenced by AbortTransaction(), CommitTransaction(), and PrepareTransaction().

12864 {
12865  ListCell *cur_item;
12866  ListCell *prev_item;
12867 
12868  prev_item = NULL;
12869  cur_item = list_head(on_commits);
12870 
12871  while (cur_item != NULL)
12872  {
12873  OnCommitItem *oc = (OnCommitItem *) lfirst(cur_item);
12874 
12875  if (isCommit ? oc->deleting_subid != InvalidSubTransactionId :
12877  {
12878  /* cur_item must be removed */
12879  on_commits = list_delete_cell(on_commits, cur_item, prev_item);
12880  pfree(oc);
12881  if (prev_item)
12882  cur_item = lnext(prev_item);
12883  else
12884  cur_item = list_head(on_commits);
12885  }
12886  else
12887  {
12888  /* cur_item must be preserved */
12891  prev_item = cur_item;
12892  cur_item = lnext(prev_item);
12893  }
12894  }
12895 }
SubTransactionId creating_subid
Definition: tablecmds.c:120
void pfree(void *pointer)
Definition: mcxt.c:950
static List * on_commits
Definition: tablecmds.c:124
static ListCell * list_head(const List *l)
Definition: pg_list.h:77
#define lnext(lc)
Definition: pg_list.h:105
List * list_delete_cell(List *list, ListCell *cell, ListCell *prev)
Definition: list.c:528
SubTransactionId deleting_subid
Definition: tablecmds.c:121
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
#define InvalidSubTransactionId
Definition: c.h:403
void ATExecChangeOwner ( Oid  relationOid,
Oid  newOwnerId,
bool  recursing,
LOCKMODE  lockmode 
)

Definition at line 9826 of file tablecmds.c.

References ACL_CREATE, ACL_KIND_CLASS, ACL_KIND_NAMESPACE, aclcheck_error(), ACLCHECK_NOT_OWNER, ACLCHECK_OK, aclnewowner(), AlterTypeOwnerInternal(), Anum_pg_class_relacl, Anum_pg_class_relowner, ATExecChangeOwner(), CatalogTupleUpdate(), change_owner_fix_column_acls(), change_owner_recurse_to_sequences(), changeDependencyOnOwner(), check_is_member_of_role(), DatumGetAclP, DEPENDENCY_AUTO, DEPENDENCY_INTERNAL, elog, ereport, errcode(), errdetail(), errhint(), errmsg(), ERROR, get_namespace_name(), get_rel_name(), GETSTRUCT, GetUserId(), heap_close, heap_freetuple(), heap_modify_tuple(), heap_open(), HeapTupleIsValid, i, InvalidOid, InvokeObjectPostAlterHook, lfirst_oid, list_free(), NameStr, Natts_pg_class, NoLock, ObjectIdGetDatum, pg_class_ownercheck(), pg_namespace_aclcheck(), PointerGetDatum, relation_close(), relation_open(), RelationGetDescr, RelationGetIndexList(), RelationGetRelationName, RelationRelationId, ReleaseSysCache(), RELKIND_COMPOSITE_TYPE, RELKIND_FOREIGN_TABLE, RELKIND_INDEX, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_TOASTVALUE, RELKIND_VIEW, RELOID, RowExclusiveLock, SearchSysCache1, sequenceIsOwned(), superuser(), SysCacheGetAttr(), HeapTupleData::t_self, and WARNING.

Referenced by AlterTypeOwner_oid(), ATExecChangeOwner(), ATExecCmd(), change_owner_recurse_to_sequences(), and shdepReassignOwned().

9827 {
9828  Relation target_rel;
9829  Relation class_rel;
9830  HeapTuple tuple;
9831  Form_pg_class tuple_class;
9832 
9833  /*
9834  * Get exclusive lock till end of transaction on the target table. Use
9835  * relation_open so that we can work on indexes and sequences.
9836  */
9837  target_rel = relation_open(relationOid, lockmode);
9838 
9839  /* Get its pg_class tuple, too */
9841 
9842  tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relationOid));
9843  if (!HeapTupleIsValid(tuple))
9844  elog(ERROR, "cache lookup failed for relation %u", relationOid);
9845  tuple_class = (Form_pg_class) GETSTRUCT(tuple);
9846 
9847  /* Can we change the ownership of this tuple? */
9848  switch (tuple_class->relkind)
9849  {
9850  case RELKIND_RELATION:
9851  case RELKIND_VIEW:
9852  case RELKIND_MATVIEW:
9853  case RELKIND_FOREIGN_TABLE:
9855  /* ok to change owner */
9856  break;
9857  case RELKIND_INDEX:
9858  if (!recursing)
9859  {
9860  /*
9861  * Because ALTER INDEX OWNER used to be allowed, and in fact
9862  * is generated by old versions of pg_dump, we give a warning
9863  * and do nothing rather than erroring out. Also, to avoid
9864  * unnecessary chatter while restoring those old dumps, say
9865  * nothing at all if the command would be a no-op anyway.
9866  */
9867  if (tuple_class->relowner != newOwnerId)
9868  ereport(WARNING,
9869  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9870  errmsg("cannot change owner of index \"%s\"",
9871  NameStr(tuple_class->relname)),
9872  errhint("Change the ownership of the index's table, instead.")));
9873  /* quick hack to exit via the no-op path */
9874  newOwnerId = tuple_class->relowner;
9875  }
9876  break;
9877  case RELKIND_SEQUENCE:
9878  if (!recursing &&
9879  tuple_class->relowner != newOwnerId)
9880  {
9881  /* if it's an owned sequence, disallow changing it by itself */
9882  Oid tableId;
9883  int32 colId;
9884 
9885  if (sequenceIsOwned(relationOid, DEPENDENCY_AUTO, &tableId, &colId) ||
9886  sequenceIsOwned(relationOid, DEPENDENCY_INTERNAL, &tableId, &colId))
9887  ereport(ERROR,
9888  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
9889  errmsg("cannot change owner of sequence \"%s\"",
9890  NameStr(tuple_class->relname)),
9891  errdetail("Sequence \"%s\" is linked to table \"%s\".",
9892  NameStr(tuple_class->relname),
9893  get_rel_name(tableId))));
9894  }
9895  break;
9897  if (recursing)
9898  break;
9899  ereport(ERROR,
9900  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9901  errmsg("\"%s\" is a composite type",
9902  NameStr(tuple_class->relname)),
9903  errhint("Use ALTER TYPE instead.")));
9904  break;
9905  case RELKIND_TOASTVALUE:
9906  if (recursing)
9907  break;
9908  /* FALL THRU */
9909  default:
9910  ereport(ERROR,
9911  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9912  errmsg("\"%s\" is not a table, view, sequence, or foreign table",
9913  NameStr(tuple_class->relname))));
9914  }
9915 
9916  /*
9917  * If the new owner is the same as the existing owner, consider the
9918  * command to have succeeded. This is for dump restoration purposes.
9919  */
9920  if (tuple_class->relowner != newOwnerId)
9921  {
9922  Datum repl_val[Natts_pg_class];
9923  bool repl_null[Natts_pg_class];
9924  bool repl_repl[Natts_pg_class];
9925  Acl *newAcl;
9926  Datum aclDatum;
9927  bool isNull;
9928  HeapTuple newtuple;
9929 
9930  /* skip permission checks when recursing to index or toast table */
9931  if (!recursing)
9932  {
9933  /* Superusers can always do it */
9934  if (!superuser())
9935  {
9936  Oid namespaceOid = tuple_class->relnamespace;
9937  AclResult aclresult;
9938 
9939  /* Otherwise, must be owner of the existing object */
9940  if (!pg_class_ownercheck(relationOid, GetUserId()))
9942  RelationGetRelationName(target_rel));
9943 
9944  /* Must be able to become new owner */
9945  check_is_member_of_role(GetUserId(), newOwnerId);
9946 
9947  /* New owner must have CREATE privilege on namespace */
9948  aclresult = pg_namespace_aclcheck(namespaceOid, newOwnerId,
9949  ACL_CREATE);
9950  if (aclresult != ACLCHECK_OK)
9952  get_namespace_name(namespaceOid));
9953  }
9954  }
9955 
9956  memset(repl_null, false, sizeof(repl_null));
9957  memset(repl_repl, false, sizeof(repl_repl));
9958 
9959  repl_repl[Anum_pg_class_relowner - 1] = true;
9960  repl_val[Anum_pg_class_relowner - 1] = ObjectIdGetDatum(newOwnerId);
9961 
9962  /*
9963  * Determine the modified ACL for the new owner. This is only
9964  * necessary when the ACL is non-null.
9965  */
9966  aclDatum = SysCacheGetAttr(RELOID, tuple,
9968  &isNull);
9969  if (!isNull)
9970  {
9971  newAcl = aclnewowner(DatumGetAclP(aclDatum),
9972  tuple_class->relowner, newOwnerId);
9973  repl_repl[Anum_pg_class_relacl - 1] = true;
9974  repl_val[Anum_pg_class_relacl - 1] = PointerGetDatum(newAcl);
9975  }
9976 
9977  newtuple = heap_modify_tuple(tuple, RelationGetDescr(class_rel), repl_val, repl_null, repl_repl);
9978 
9979  CatalogTupleUpdate(class_rel, &newtuple->t_self, newtuple);
9980 
9981  heap_freetuple(newtuple);
9982 
9983  /*
9984  * We must similarly update any per-column ACLs to reflect the new
9985  * owner; for neatness reasons that's split out as a subroutine.
9986  */
9987  change_owner_fix_column_acls(relationOid,
9988  tuple_class->relowner,
9989  newOwnerId);
9990 
9991  /*
9992  * Update owner dependency reference, if any. A composite type has
9993  * none, because it's tracked for the pg_type entry instead of here;
9994  * indexes and TOAST tables don't have their own entries either.
9995  */
9996  if (tuple_class->relkind != RELKIND_COMPOSITE_TYPE &&
9997  tuple_class->relkind != RELKIND_INDEX &&
9998  tuple_class->relkind != RELKIND_TOASTVALUE)
10000  newOwnerId);
10001 
10002  /*
10003  * Also change the ownership of the table's row type, if it has one
10004  */
10005  if (tuple_class->relkind != RELKIND_INDEX)
10006  AlterTypeOwnerInternal(tuple_class->reltype, newOwnerId);
10007 
10008  /*
10009  * If we are operating on a table or materialized view, also change
10010  * the ownership of any indexes and sequences that belong to the
10011  * relation, as well as its toast table (if it has one).
10012  */
10013  if (tuple_class->relkind == RELKIND_RELATION ||
10014  tuple_class->relkind == RELKIND_MATVIEW ||
10015  tuple_class->relkind == RELKIND_TOASTVALUE)
10016  {
10017  List *index_oid_list;
10018  ListCell *i;
10019 
10020  /* Find all the indexes belonging to this relation */
10021  index_oid_list = RelationGetIndexList(target_rel);
10022 
10023  /* For each index, recursively change its ownership */
10024  foreach(i, index_oid_list)
10025  ATExecChangeOwner(lfirst_oid(i), newOwnerId, true, lockmode);
10026 
10027  list_free(index_oid_list);
10028  }
10029 
10030  if (tuple_class->relkind == RELKIND_RELATION ||
10031  tuple_class->relkind == RELKIND_MATVIEW)
10032  {
10033  /* If it has a toast table, recurse to change its ownership */
10034  if (tuple_class->reltoastrelid != InvalidOid)
10035  ATExecChangeOwner(tuple_class->reltoastrelid, newOwnerId,
10036  true, lockmode);
10037 
10038  /* If it has dependent sequences, recurse to change them too */
10039  change_owner_recurse_to_sequences(relationOid, newOwnerId, lockmode);
10040  }
10041  }
10042 
10044 
10045  ReleaseSysCache(tuple);
10046  heap_close(class_rel, RowExclusiveLock);
10047  relation_close(target_rel, NoLock);
10048 }
#define Natts_pg_class
Definition: pg_class.h:102
int errhint(const char *fmt,...)
Definition: elog.c:987
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define Anum_pg_class_relacl
Definition: pg_class.h:133
bool sequenceIsOwned(Oid seqId, char deptype, Oid *tableId, int32 *colId)
Definition: pg_depend.c:500
#define RelationGetDescr(relation)
Definition: rel.h:429
Oid GetUserId(void)
Definition: miscinit.c:283
#define DatumGetAclP(X)
Definition: acl.h:113
#define PointerGetDatum(X)
Definition: postgres.h:562
#define RelationRelationId
Definition: pg_class.h:29
#define RELKIND_MATVIEW
Definition: pg_class.h:165
int errcode(int sqlerrcode)
Definition: elog.c:575
bool superuser(void)
Definition: superuser.c:47
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
void AlterTypeOwnerInternal(Oid typeOid, Oid newOwnerId)
Definition: typecmds.c:3361
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1374
unsigned int Oid
Definition: postgres_ext.h:31
AclResult pg_namespace_aclcheck(Oid nsp_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4484
#define RELKIND_COMPOSITE_TYPE
Definition: pg_class.h:166
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:152
signed int int32
Definition: c.h:256
void changeDependencyOnOwner(Oid classId, Oid objectId, Oid newOwnerId)
Definition: pg_shdepend.c:304
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define ACL_CREATE
Definition: parsenodes.h:82
ItemPointerData t_self
Definition: htup.h:65
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3038
#define NoLock
Definition: lockdefs.h:34
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
#define RowExclusiveLock
Definition: lockdefs.h:38
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:437
#define RELKIND_FOREIGN_TABLE
Definition: pg_class.h:167
void check_is_member_of_role(Oid member, Oid role)
Definition: acl.c:4859
#define ereport(elevel, rest)
Definition: elog.h:122
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:163
void ATExecChangeOwner(Oid relationOid, Oid newOwnerId, bool recursing, LOCKMODE lockmode)
Definition: tablecmds.c:9826
#define WARNING
Definition: elog.h:40
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
#define RELKIND_TOASTVALUE
Definition: pg_class.h:163
AclResult
Definition: acl.h:170
uintptr_t Datum
Definition: postgres.h:372
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1116
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1278
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define InvalidOid
Definition: postgres_ext.h:36
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4546
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
static void change_owner_recurse_to_sequences(Oid relationOid, Oid newOwnerId, LOCKMODE lockmode)
Definition: tablecmds.c:10122
List * RelationGetIndexList(Relation relation)
Definition: relcache.c:4338
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
static void change_owner_fix_column_acls(Oid relationOid, Oid oldOwnerId, Oid newOwnerId)
Definition: tablecmds.c:10057
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RELKIND_VIEW
Definition: pg_class.h:164
void list_free(List *list)
Definition: list.c:1133
int i
#define NameStr(name)
Definition: c.h:499
#define RELKIND_INDEX
Definition: pg_class.h:161
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define elog
Definition: elog.h:219
HeapTuple heap_modify_tuple(HeapTuple tuple, TupleDesc tupleDesc, Datum *replValues, bool *replIsnull, bool *doReplace)
Definition: heaptuple.c:793
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
Definition: pg_list.h:45
char * get_rel_name(Oid relid)
Definition: lsyscache.c:1726
Acl * aclnewowner(const Acl *old_acl, Oid oldOwnerId, Oid newOwnerId)
Definition: acl.c:1035
#define lfirst_oid(lc)
Definition: pg_list.h:108
#define Anum_pg_class_relowner
Definition: pg_class.h:107
void check_of_type ( HeapTuple  typetuple)

Definition at line 5028 of file tablecmds.c.

References AccessShareLock, Assert, ereport, errcode(), errmsg(), ERROR, format_type_be(), GETSTRUCT, HeapTupleGetOid, NoLock, OidIsValid, RelationData::rd_rel, relation_close(), relation_open(), RELKIND_COMPOSITE_TYPE, and TYPTYPE_COMPOSITE.

Referenced by ATExecAddOf(), and transformOfType().

5029 {
5030  Form_pg_type typ = (Form_pg_type) GETSTRUCT(typetuple);
5031  bool typeOk = false;
5032 
5033  if (typ->typtype == TYPTYPE_COMPOSITE)
5034  {
5035  Relation typeRelation;
5036 
5037  Assert(OidIsValid(typ->typrelid));
5038  typeRelation = relation_open(typ->typrelid, AccessShareLock);
5039  typeOk = (typeRelation->rd_rel->relkind == RELKIND_COMPOSITE_TYPE);
5040 
5041  /*
5042  * Close the parent rel, but keep our AccessShareLock on it until xact
5043  * commit. That will prevent someone else from deleting or ALTERing
5044  * the type before the typed table creation/conversion commits.
5045  */
5046  relation_close(typeRelation, NoLock);
5047  }
5048  if (!typeOk)
5049  ereport(ERROR,
5050  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
5051  errmsg("type %s is not a composite type",
5052  format_type_be(HeapTupleGetOid(typetuple)))));
5053 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define TYPTYPE_COMPOSITE
Definition: pg_type.h:721
#define AccessShareLock
Definition: lockdefs.h:36
int errcode(int sqlerrcode)
Definition: elog.c:575
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
char * format_type_be(Oid type_oid)
Definition: format_type.c:94
FormData_pg_type * Form_pg_type
Definition: pg_type.h:233
Form_pg_class rd_rel
Definition: rel.h:114
#define OidIsValid(objectId)
Definition: c.h:538
#define RELKIND_COMPOSITE_TYPE
Definition: pg_class.h:166
#define ERROR
Definition: elog.h:43
#define NoLock
Definition: lockdefs.h:34
#define ereport(elevel, rest)
Definition: elog.h:122
#define Assert(condition)
Definition: c.h:675
int errmsg(const char *fmt,...)
Definition: elog.c:797
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
void CheckTableNotInUse ( Relation  rel,
const char *  stmt 
)

Definition at line 3015 of file tablecmds.c.

References AfterTriggerPendingOnRel(), ereport, errcode(), errmsg(), ERROR, RelationData::rd_isnailed, RelationData::rd_refcnt, RelationData::rd_rel, RelationGetRelationName, RelationGetRelid, and RELKIND_INDEX.

Referenced by AlterTable(), ATAddCheckConstraint(), ATExecAddColumn(), ATExecDropColumn(), ATExecDropConstraint(), ATPrepAlterColumnType(), ATSimpleRecursion(), ATTypedTableRecursion(), cluster_rel(), DefineVirtualRelation(), ExecRefreshMatView(), heap_drop_with_catalog(), index_drop(), reindex_index(), and truncate_check_rel().

3016 {
3017  int expected_refcnt;
3018 
3019  expected_refcnt = rel->rd_isnailed ? 2 : 1;
3020  if (rel->rd_refcnt != expected_refcnt)
3021  ereport(ERROR,
3022  (errcode(ERRCODE_OBJECT_IN_USE),
3023  /* translator: first %s is a SQL command, eg ALTER TABLE */
3024  errmsg("cannot %s \"%s\" because "
3025  "it is being used by active queries in this session",
3026  stmt, RelationGetRelationName(rel))));
3027 
3028  if (rel->rd_rel->relkind != RELKIND_INDEX &&
3030  ereport(ERROR,
3031  (errcode(ERRCODE_OBJECT_IN_USE),
3032  /* translator: first %s is a SQL command, eg ALTER TABLE */
3033  errmsg("cannot %s \"%s\" because "
3034  "it has pending trigger events",
3035  stmt, RelationGetRelationName(rel))));
3036 }
bool rd_isnailed
Definition: rel.h:91
int errcode(int sqlerrcode)
Definition: elog.c:575
Form_pg_class rd_rel
Definition: rel.h:114
#define ERROR
Definition: elog.h:43
#define RelationGetRelationName(relation)
Definition: rel.h:437
#define ereport(elevel, rest)
Definition: elog.h:122
bool AfterTriggerPendingOnRel(Oid relid)
Definition: trigger.c:5015
int errmsg(const char *fmt,...)
Definition: elog.c:797
int rd_refcnt
Definition: rel.h:88
#define RELKIND_INDEX
Definition: pg_class.h:161
#define RelationGetRelid(relation)
Definition: rel.h:417
ObjectAddress DefineRelation ( CreateStmt stmt,
char  relkind,
Oid  ownerId,
ObjectAddress typaddress,
const char *  queryString 
)

Definition at line 489 of file tablecmds.c.

References AccessExclusiveLock, ACL_CREATE, ACL_KIND_TABLESPACE, ACL_USAGE, aclcheck_error(), aclcheck_error_type(), ACLCHECK_OK, AddRelationNewConstraints(), allowSystemTableMods, AlterTableInternal(), Assert, AT_SetNotNull, RawColumnDefault::attnum, CookedConstraint::attnum, tupleDesc::attrs, BuildDescForRelation(), check_new_partition_bound(), CommandCounterIncrement(), ComputePartitionAttrs(), CookedConstraint::conoid, CONSTR_DEFAULT, CreateStmt::constraints, CookedConstraint::contype, ColumnDef::cooked_default, elog, ereport, errcode(), errmsg(), ERROR, CookedConstraint::expr, get_tablespace_name(), get_tablespace_oid(), GetDefaultTablespace(), GetUserId(), GLOBALTABLESPACE_OID, heap_close, heap_create_with_catalog(), heap_open(), HEAP_RELOPT_NAMESPACES, heap_reloptions(), i, ColumnDef::identity, CookedConstraint::inhcount, CreateStmt::inhRelations, InSecurityRestrictedOperation(), interpretOidsOption(), InvalidOid, CookedConstraint::is_local, CookedConstraint::is_no_inherit, lappend(), lfirst, linitial_oid, list_concat(), list_length(), make_parsestate(), makeNode, MergeAttributes(), MyDatabaseTableSpace, CookedConstraint::name, AlterTableCmd::name, NAMEDATALEN, NameStr, NIL, NoLock, NULL, ObjectAddressSet, CreateStmt::ofTypename, OidIsValid, CreateStmt::oncommit, ONCOMMIT_NOOP, CreateStmt::options, ParseState::p_sourcetext, palloc(), CreateStmt::partbound, PARTITION_MAX_KEYS, PARTITION_STRATEGY_RANGE, PartitionSpec::partParams, CreateStmt::partspec, pg_tablespace_aclcheck(), pg_type_aclcheck(), pstrdup(), RangeVarGetAndCheckCreationNamespace(), RawColumnDefault::raw_default, ColumnDef::raw_default, RelationData::rd_rel, CreateStmt::relation, relation_close(), relation_open(), RelationGetRelationName, RelationGetRelid, RelationRelationId, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, RELKIND_VIEW, RangeVar::relname, RangeVar::relpersistence, RELPERSISTENCE_TEMP, CookedConstraint::skip_validation, StoreCatalogInheritance(), StorePartitionBound(), StorePartitionKey(), StrNCpy, AlterTableCmd::subtype, CreateStmt::tableElts, CreateStmt::tablespacename, tupleDesc::tdhasoid, transformPartitionBound(), transformPartitionSpec(), transformRelOptions(), typenameTypeId(), and view_reloptions().

Referenced by create_ctas_internal(), DefineCompositeType(), DefineSequence(), DefineVirtualRelation(), and ProcessUtilitySlow().

491 {
492  char relname[NAMEDATALEN];
493  Oid namespaceId;
494  List *schema = stmt->tableElts;
495  Oid relationId;
496  Oid tablespaceId;
497  Relation rel;
499  List *inheritOids;
500  List *old_constraints;
501  bool localHasOids;
502  int parentOidCount;
503  List *rawDefaults;
504  List *cookedDefaults;
505  Datum reloptions;
506  ListCell *listptr;
507  AttrNumber attnum;
508  static char *validnsps[] = HEAP_RELOPT_NAMESPACES;
509  Oid ofTypeId;
510  ObjectAddress address;
511 
512  /*
513  * Truncate relname to appropriate length (probably a waste of time, as
514  * parser should have done this already).
515  */
516  StrNCpy(relname, stmt->relation->relname, NAMEDATALEN);
517 
518  /*
519  * Check consistency of arguments
520  */
521  if (stmt->oncommit != ONCOMMIT_NOOP
523  ereport(ERROR,
524  (errcode(ERRCODE_INVALID_TABLE_DEFINITION),
525  errmsg("ON COMMIT can only be used on temporary tables")));
526 
527  if (stmt->partspec != NULL)
528  {
529  if (relkind != RELKIND_RELATION)
530  elog(ERROR, "unexpected relkind: %d", (int) relkind);
531 
532  relkind = RELKIND_PARTITIONED_TABLE;
533  }
534 
535  /*
536  * Look up the namespace in which we are supposed to create the relation,
537  * check we have permission to create there, lock it against concurrent
538  * drop, and mark stmt->relation as RELPERSISTENCE_TEMP if a temporary
539  * namespace is selected.
540  */
541  namespaceId =
543 
544  /*
545  * Security check: disallow creating temp tables from security-restricted
546  * code. This is needed because calling code might not expect untrusted
547  * tables to appear in pg_temp at the front of its search path.
548  */
551  ereport(ERROR,
552  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
553  errmsg("cannot create temporary table within security-restricted operation")));
554 
555  /*
556  * Select tablespace to use. If not specified, use default tablespace
557  * (which may in turn default to database's default).
558  */
559  if (stmt->tablespacename)
560  {
561  tablespaceId = get_tablespace_oid(stmt->tablespacename, false);
562  }
563  else
564  {
565  tablespaceId = GetDefaultTablespace(stmt->relation->relpersistence);
566  /* note InvalidOid is OK in this case */
567  }
568 
569  /* Check permissions except when using database's default */
570  if (OidIsValid(tablespaceId) && tablespaceId != MyDatabaseTableSpace)
571  {
572  AclResult aclresult;
573 
574  aclresult = pg_tablespace_aclcheck(tablespaceId, GetUserId(),
575  ACL_CREATE);
576  if (aclresult != ACLCHECK_OK)
578  get_tablespace_name(tablespaceId));
579  }
580 
581  /* In all cases disallow placing user relations in pg_global */
582  if (tablespaceId == GLOBALTABLESPACE_OID)
583  ereport(ERROR,
584  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
585  errmsg("only shared relations can be placed in pg_global tablespace")));
586 
587  /* Identify user ID that will own the table */
588  if (!OidIsValid(ownerId))
589  ownerId = GetUserId();
590 
591  /*
592  * Parse and validate reloptions, if any.
593  */
594  reloptions = transformRelOptions((Datum) 0, stmt->options, NULL, validnsps,
595  true, false);
596 
597  if (relkind == RELKIND_VIEW)
598  (void) view_reloptions(reloptions, true);
599  else
600  (void) heap_reloptions(relkind, reloptions, true);
601 
602  if (stmt->ofTypename)
603  {
604  AclResult aclresult;
605 
606  ofTypeId = typenameTypeId(NULL, stmt->ofTypename);
607 
608  aclresult = pg_type_aclcheck(ofTypeId, GetUserId(), ACL_USAGE);
609  if (aclresult != ACLCHECK_OK)
610  aclcheck_error_type(aclresult, ofTypeId);
611  }
612  else
613  ofTypeId = InvalidOid;
614 
615  /*
616  * Look up inheritance ancestors and generate relation schema, including
617  * inherited attributes.
618  */
619  schema = MergeAttributes(schema, stmt->inhRelations,
620  stmt->relation->relpersistence,
621  stmt->partbound != NULL,
622  &inheritOids, &old_constraints, &parentOidCount);
623 
624  /*
625  * Create a tuple descriptor from the relation schema. Note that this
626  * deals with column names, types, and NOT NULL constraints, but not
627  * default values or CHECK constraints; we handle those below.
628  */
629  descriptor = BuildDescForRelation(schema);
630 
631  /*
632  * Notice that we allow OIDs here only for plain tables and partitioned
633  * tables, even though some other relkinds can support them. This is
634  * necessary because the default_with_oids GUC must apply only to plain
635  * tables and not any other relkind; doing otherwise would break existing
636  * pg_dump files. We could allow explicit "WITH OIDS" while not allowing
637  * default_with_oids to affect other relkinds, but it would complicate
638  * interpretOidsOption().
639  */
640  localHasOids = interpretOidsOption(stmt->options,
641  (relkind == RELKIND_RELATION ||
642  relkind == RELKIND_PARTITIONED_TABLE));
643  descriptor->tdhasoid = (localHasOids || parentOidCount > 0);
644 
645  /*
646  * If a partitioned table doesn't have the system OID column, then none
647  * of its partitions should have it.
648  */
649  if (stmt->partbound && parentOidCount == 0 && localHasOids)
650  ereport(ERROR,
651  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
652  errmsg("cannot create table with OIDs as partition of table without OIDs")));
653 
654  /*
655  * Find columns with default values and prepare for insertion of the
656  * defaults. Pre-cooked (that is, inherited) defaults go into a list of
657  * CookedConstraint structs that we'll pass to heap_create_with_catalog,
658  * while raw defaults go into a list of RawColumnDefault structs that will
659  * be processed by AddRelationNewConstraints. (We can't deal with raw
660  * expressions until we can do transformExpr.)
661  *
662  * We can set the atthasdef flags now in the tuple descriptor; this just
663  * saves StoreAttrDefault from having to do an immediate update of the
664  * pg_attribute rows.
665  */
666  rawDefaults = NIL;
667  cookedDefaults = NIL;
668  attnum = 0;
669 
670  foreach(listptr, schema)
671  {
672  ColumnDef *colDef = lfirst(listptr);
673 
674  attnum++;
675 
676  if (colDef->raw_default != NULL)
677  {
678  RawColumnDefault *rawEnt;
679 
680  Assert(colDef->cooked_default == NULL);
681 
682  rawEnt = (RawColumnDefault *) palloc(sizeof(RawColumnDefault));
683  rawEnt->attnum = attnum;
684  rawEnt->raw_default = colDef->raw_default;
685  rawDefaults = lappend(rawDefaults, rawEnt);
686  descriptor->attrs[attnum - 1]->atthasdef = true;
687  }
688  else if (colDef->cooked_default != NULL)
689  {
690  CookedConstraint *cooked;
691 
692  cooked = (CookedConstraint *) palloc(sizeof(CookedConstraint));
693  cooked->contype = CONSTR_DEFAULT;
694  cooked->conoid = InvalidOid; /* until created */
695  cooked->name = NULL;
696  cooked->attnum = attnum;
697  cooked->expr = colDef->cooked_default;
698  cooked->skip_validation = false;
699  cooked->is_local = true; /* not used for defaults */
700  cooked->inhcount = 0; /* ditto */
701  cooked->is_no_inherit = false;
702  cookedDefaults = lappend(cookedDefaults, cooked);
703  descriptor->attrs[attnum - 1]->atthasdef = true;
704  }
705 
706  if (colDef->identity)
707  descriptor->attrs[attnum - 1]->attidentity = colDef->identity;
708  }
709 
710  /*
711  * Create the relation. Inherited defaults and constraints are passed in
712  * for immediate handling --- since they don't need parsing, they can be
713  * stored immediately.
714  */
715  relationId = heap_create_with_catalog(relname,
716  namespaceId,
717  tablespaceId,
718  InvalidOid,
719  InvalidOid,
720  ofTypeId,
721  ownerId,
722  descriptor,
723  list_concat(cookedDefaults,
724  old_constraints),
725  relkind,
726  stmt->relation->relpersistence,
727  false,
728  false,
729  localHasOids,
730  parentOidCount,
731  stmt->oncommit,
732  reloptions,
733  true,
735  false,
736  typaddress);
737 
738  /* Store inheritance information for new rel. */
739  StoreCatalogInheritance(relationId, inheritOids, stmt->partbound != NULL);
740 
741  /*
742  * We must bump the command counter to make the newly-created relation
743  * tuple visible for opening.
744  */
746 
747  /*
748  * Open the new relation and acquire exclusive lock on it. This isn't
749  * really necessary for locking out other backends (since they can't see
750  * the new rel anyway until we commit), but it keeps the lock manager from
751  * complaining about deadlock risks.
752  */
753  rel = relation_open(relationId, AccessExclusiveLock);
754 
755  /* Process and store partition bound, if any. */
756  if (stmt->partbound)
757  {
758  Node *bound;
759  ParseState *pstate;
760  Oid parentId = linitial_oid(inheritOids);
761  Relation parent;
762 
763  /* Already have strong enough lock on the parent */
764  parent = heap_open(parentId, NoLock);
765 
766  /*
767  * We are going to try to validate the partition bound specification
768  * against the partition key of parentRel, so it better have one.
769  */
770  if (parent->rd_rel->relkind != RELKIND_PARTITIONED_TABLE)
771  ereport(ERROR,
772  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
773  errmsg("\"%s\" is not partitioned",
774  RelationGetRelationName(parent))));
775 
776  /* Tranform the bound values */
777  pstate = make_parsestate(NULL);
778  pstate->p_sourcetext = queryString;
779  bound = transformPartitionBound(pstate, parent, stmt->partbound);
780 
781  /*
782  * Check first that the new partition's bound is valid and does not
783  * overlap with any of existing partitions of the parent - note that
784  * it does not return on error.
785  */
786  check_new_partition_bound(relname, parent, bound);
787 
788  /* Update the pg_class entry. */
789  StorePartitionBound(rel, parent, bound);
790 
791  heap_close(parent, NoLock);
792 
793  /*
794  * The code that follows may also update the pg_class tuple to update
795  * relnumchecks, so bump up the command counter to avoid the "already
796  * updated by self" error.
797  */
799  }
800 
801  /*
802  * Process the partitioning specification (if any) and store the partition
803  * key information into the catalog.
804  */
805  if (stmt->partspec)
806  {
807  char strategy;
808  int partnatts,
809  i;
810  AttrNumber partattrs[PARTITION_MAX_KEYS];
811  Oid partopclass[PARTITION_MAX_KEYS];
812  Oid partcollation[PARTITION_MAX_KEYS];
813  List *partexprs = NIL;
814  List *cmds = NIL;
815 
816  /*
817  * We need to transform the raw parsetrees corresponding to partition
818  * expressions into executable expression trees. Like column defaults
819  * and CHECK constraints, we could not have done the transformation
820  * earlier.
821  */
822  stmt->partspec = transformPartitionSpec(rel, stmt->partspec,
823  &strategy);
825  partattrs, &partexprs, partopclass,
826  partcollation);
827 
828  partnatts = list_length(stmt->partspec->partParams);
829  StorePartitionKey(rel, strategy, partnatts, partattrs, partexprs,
830  partopclass, partcollation);
831 
832  /* Force key columns to be NOT NULL when using range partitioning */
833  if (strategy == PARTITION_STRATEGY_RANGE)
834  {
835  for (i = 0; i < partnatts; i++)
836  {
837  AttrNumber partattno = partattrs[i];
838  Form_pg_attribute attform = descriptor->attrs[partattno - 1];
839 
840  if (partattno != 0 && !attform->attnotnull)
841  {
842  /* Add a subcommand to make this one NOT NULL */
844 
845  cmd->subtype = AT_SetNotNull;
846  cmd->name = pstrdup(NameStr(attform->attname));
847  cmds = lappend(cmds, cmd);
848  }
849  }
850 
851  /*
852  * Although, there cannot be any partitions yet, we still need to
853  * pass true for recurse; ATPrepSetNotNull() complains if we don't
854  */
855  if (cmds != NIL)
856  AlterTableInternal(RelationGetRelid(rel), cmds, true);
857  }
858  }
859 
860  /*
861  * Now add any newly specified column default values and CHECK constraints
862  * to the new relation. These are passed to us in the form of raw
863  * parsetrees; we need to transform them to executable expression trees
864  * before they can be added. The most convenient way to do that is to
865  * apply the parser's transformExpr routine, but transformExpr doesn't
866  * work unless we have a pre-existing relation. So, the transformation has
867  * to be postponed to this final step of CREATE TABLE.
868  */
869  if (rawDefaults || stmt->constraints)
870  AddRelationNewConstraints(rel, rawDefaults, stmt->constraints,
871  true, true, false);
872 
873  ObjectAddressSet(address, RelationRelationId, relationId);
874 
875  /*
876  * Clean up. We keep lock on new relation (although it shouldn't be
877  * visible to anyone else anyway, until commit).
878  */
879  relation_close(rel, NoLock);
880 
881  return address;
882 }
RangeVar * relation
Definition: parsenodes.h:1967
bytea * heap_reloptions(char relkind, Datum reloptions, bool validate)
Definition: reloptions.c:1409
#define NIL
Definition: pg_list.h:69
Oid get_tablespace_oid(const char *tablespacename, bool missing_ok)
Definition: tablespace.c:1380
OnCommitAction oncommit
Definition: parsenodes.h:1976
List * inhRelations
Definition: parsenodes.h:1969
AclResult pg_tablespace_aclcheck(Oid spc_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4496
bool is_no_inherit
Definition: heap.h:38
bool tdhasoid
Definition: tupdesc.h:79
void StorePartitionKey(Relation rel, char strategy, int16 partnatts, AttrNumber *partattrs, List *partexprs, Oid *partopclass, Oid *partcollation)
Definition: heap.c:3160
AttrNumber attnum
Definition: heap.h:24
List * partParams
Definition: parsenodes.h:776
Oid GetUserId(void)
Definition: miscinit.c:283
Node * transformPartitionBound(ParseState *pstate, Relation parent, Node *bound)
char identity
Definition: parsenodes.h:649
char * pstrdup(const char *in)
Definition: mcxt.c:1077
#define RelationRelationId
Definition: pg_class.h:29
Form_pg_attribute * attrs
Definition: tupdesc.h:74
#define GLOBALTABLESPACE_OID
Definition: pg_tablespace.h:64
Definition: nodes.h:509
int errcode(int sqlerrcode)
Definition: elog.c:575
#define PARTITION_MAX_KEYS
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
AlterTableType subtype
Definition: parsenodes.h:1744
List * list_concat(List *list1, List *list2)
Definition: list.c:321
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
static void StoreCatalogInheritance(Oid relationId, List *supers, bool child_is_partition)
Definition: tablecmds.c:2298
Oid GetDefaultTablespace(char relpersistence)
Definition: tablespace.c:1111
static PartitionSpec * transformPartitionSpec(Relation rel, PartitionSpec *partspec, char *strategy)
Definition: tablecmds.c:13139
void aclcheck_error_type(AclResult aclerr, Oid typeOid)
Definition: aclchk.c:3457
Oid MyDatabaseTableSpace
Definition: globals.c:78
static void ComputePartitionAttrs(Relation rel, List *partParams, AttrNumber *partattrs, List **partexprs, Oid *partopclass, Oid *partcollation)
Definition: tablecmds.c:13211
ParseState * make_parsestate(ParseState *parentParseState)
Definition: parse_node.c:44
bytea * view_reloptions(Datum reloptions, bool validate)
Definition: reloptions.c:1377
List * constraints
Definition: parsenodes.h:1974
#define NAMEDATALEN
Node * cooked_default
Definition: parsenodes.h:648
char * relname
Definition: primnodes.h:68
AttrNumber attnum
Definition: heap.h:33
#define ERROR
Definition: elog.h:43
#define ACL_CREATE
Definition: parsenodes.h:82
int inhcount
Definition: heap.h:37
#define NoLock
Definition: lockdefs.h:34
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
void check_new_partition_bound(char *relname, Relation parent, Node *bound)
Definition: partition.c:669
#define RelationGetRelationName(relation)
Definition: rel.h:437
List * options
Definition: parsenodes.h:1975
Node * raw_default
Definition: heap.h:25
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:187
#define ACL_USAGE
Definition: parsenodes.h:80
bool skip_validation
Definition: heap.h:35
#define HEAP_RELOPT_NAMESPACES
Definition: reloptions.h:59
const char * p_sourcetext
Definition: parse_node.h:168
ConstrType contype
Definition: heap.h:30
#define ereport(elevel, rest)
Definition: elog.h:122
Node * raw_default
Definition: parsenodes.h:647
List * lappend(List *list, void *datum)
Definition: list.c:128
char * tablespacename
Definition: parsenodes.h:1977
void StorePartitionBound(Relation rel, Relation parent, Node *bound)
Definition: heap.c:3296
Oid RangeVarGetAndCheckCreationNamespace(RangeVar *relation, LOCKMODE lockmode, Oid *existing_relation_id)
Definition: namespace.c:507
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
AclResult
Definition: acl.h:170
uintptr_t Datum
Definition: postgres.h:372
void CommandCounterIncrement(void)
Definition: xact.c:922
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
Node * partbound
Definition: parsenodes.h:1971
Datum transformRelOptions(Datum oldOptions, List *defList, char *namspace, char *validnsps[], bool ignoreOids, bool isReset)
Definition: reloptions.c:745
bool allowSystemTableMods
Definition: globals.c:111
#define InvalidOid
Definition: postgres_ext.h:36
List * tableElts
Definition: parsenodes.h:1968
#define makeNode(_type_)
Definition: nodes.h:557
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
#define StrNCpy(dst, src, len)
Definition: c.h:830
bool InSecurityRestrictedOperation(void)
Definition: miscinit.c:415
#define linitial_oid(l)
Definition: pg_list.h:113
static int list_length(const List *l)
Definition: pg_list.h:89
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
char relpersistence
Definition: primnodes.h:71
bool interpretOidsOption(List *defList, bool allowOids)
Definition: parse_clause.c:255
static List * MergeAttributes(List *schema, List *supers, char relpersistence, bool is_partition, List **supOids, List **supconstr, int *supOidCount)
Definition: tablecmds.c:1630
#define PARTITION_STRATEGY_RANGE
Definition: parsenodes.h:781
void AlterTableInternal(Oid relid, List *cmds, bool recurse)
Definition: tablecmds.c:3118
#define AccessExclusiveLock
Definition: lockdefs.h:46
void * palloc(Size size)
Definition: mcxt.c:849
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * get_tablespace_name(Oid spc_oid)
Definition: tablespace.c:1426
#define RELKIND_VIEW
Definition: pg_class.h:164
int i
Oid heap_create_with_catalog(const char *relname, Oid relnamespace, Oid reltablespace, Oid relid, Oid reltypeid, Oid reloftypeid, Oid ownerid, TupleDesc tupdesc, List *cooked_constraints, char relkind, char relpersistence, bool shared_relation, bool mapped_relation, bool oidislocal, int oidinhcount, OnCommitAction oncommit, Datum reloptions, bool use_user_acl, bool allow_system_table_mods, bool is_internal, ObjectAddress *typaddress)
Definition: heap.c:1019
Oid conoid
Definition: heap.h:31
#define NameStr(name)
Definition: c.h:499
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
Node * expr
Definition: heap.h:34
#define elog
Definition: elog.h:219
TupleDesc BuildDescForRelation(List *schema)
Definition: tupdesc.c:681
#define RELPERSISTENCE_TEMP
Definition: pg_class.h:172
AclResult pg_type_aclcheck(Oid type_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4534
#define RELKIND_RELATION
Definition: pg_class.h:160
PartitionSpec * partspec
Definition: parsenodes.h:1972
Definition: pg_list.h:45
int16 AttrNumber
Definition: attnum.h:21
char * name
Definition: heap.h:32
#define RelationGetRelid(relation)
Definition: rel.h:417
List * AddRelationNewConstraints(Relation rel, List *newColDefaults, List *newConstraints, bool allow_merge, bool is_local, bool is_internal)
Definition: heap.c:2206
TypeName * ofTypename
Definition: parsenodes.h:1973
bool is_local
Definition: heap.h:36
Oid typenameTypeId(ParseState *pstate, const TypeName *typeName)
Definition: parse_type.c:274
void ExecuteTruncate ( TruncateStmt stmt)

Definition at line 1205 of file tablecmds.c.

References AccessExclusiveLock, ACL_KIND_CLASS, aclcheck_error(), ACLCHECK_NOT_OWNER, AfterTriggerBeginQuery(), AfterTriggerEndQuery(), TruncateStmt::behavior, CheckTableForSerializableConflictIn(), CreateExecutorState(), DROP_CASCADE, DROP_RESTRICT, ereport, errcode(), errhint(), errmsg(), ERROR, EState::es_num_result_relations, EState::es_result_relation_info, EState::es_result_relations, ExecASTruncateTriggers(), ExecBSTruncateTriggers(), find_all_inheritors(), FreeExecutorState(), GetCurrentSubTransactionId(), GetOldestMultiXactId(), getOwnedSequences(), GetUserId(), heap_close, heap_create_init_fork(), heap_open(), heap_openrv(), heap_truncate_check_FKs(), heap_truncate_find_FKs(), heap_truncate_one_rel(), RangeVar::inh, InitResultRelInfo(), lappend(), lappend_oid(), lfirst, lfirst_oid, list_length(), list_member_oid(), NIL, NoLock, NOTICE, NULL, OidIsValid, palloc(), pg_class_ownercheck(), pgstat_count_truncate(), RelationData::rd_createSubid, RelationData::rd_newRelfilenodeSubid, RelationData::rd_rel, RecentXmin, REINDEX_REL_PROCESS_TOAST, reindex_relation(), relation_close(), relation_open(), RelationGetRelationName, RelationGetRelid, TruncateStmt::relations, RelationSetNewRelfilenode(), RELKIND_PARTITIONED_TABLE, RELPERSISTENCE_UNLOGGED, ResetSequence(), TruncateStmt::restart_seqs, and truncate_check_rel().

Referenced by standard_ProcessUtility().

1206 {
1207  List *rels = NIL;
1208  List *relids = NIL;
1209  List *seq_relids = NIL;
1210  EState *estate;
1211  ResultRelInfo *resultRelInfos;
1212  ResultRelInfo *resultRelInfo;
1213  SubTransactionId mySubid;
1214  ListCell *cell;
1215 
1216  /*
1217  * Open, exclusive-lock, and check all the explicitly-specified relations
1218  */
1219  foreach(cell, stmt->relations)
1220  {
1221  RangeVar *rv = lfirst(cell);
1222  Relation rel;
1223  bool recurse = rv->inh;
1224  Oid myrelid;
1225 
1226  rel = heap_openrv(rv, AccessExclusiveLock);
1227  myrelid = RelationGetRelid(rel);
1228  /* don't throw error for "TRUNCATE foo, foo" */
1229  if (list_member_oid(relids, myrelid))
1230  {
1232  continue;
1233  }
1234  truncate_check_rel(rel);
1235  rels = lappend(rels, rel);
1236  relids = lappend_oid(relids, myrelid);
1237 
1238  if (recurse)
1239  {
1240  ListCell *child;
1241  List *children;
1242 
1243  children = find_all_inheritors(myrelid, AccessExclusiveLock, NULL);
1244 
1245  foreach(child, children)
1246  {
1247  Oid childrelid = lfirst_oid(child);
1248 
1249  if (list_member_oid(relids, childrelid))
1250  continue;
1251 
1252  /* find_all_inheritors already got lock */
1253  rel = heap_open(childrelid, NoLock);
1254  truncate_check_rel(rel);
1255  rels = lappend(rels, rel);
1256  relids = lappend_oid(relids, childrelid);
1257  }
1258  }
1259  else if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
1260  ereport(ERROR,
1261  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1262  errmsg("cannot truncate only a partitioned table"),
1263  errhint("Do not specify the ONLY keyword, or use truncate only on the partitions directly.")));
1264  }
1265 
1266  /*
1267  * In CASCADE mode, suck in all referencing relations as well. This
1268  * requires multiple iterations to find indirectly-dependent relations. At
1269  * each phase, we need to exclusive-lock new rels before looking for their
1270  * dependencies, else we might miss something. Also, we check each rel as
1271  * soon as we open it, to avoid a faux pas such as holding lock for a long
1272  * time on a rel we have no permissions for.
1273  */
1274  if (stmt->behavior == DROP_CASCADE)
1275  {
1276  for (;;)
1277  {
1278  List *newrelids;
1279 
1280  newrelids = heap_truncate_find_FKs(relids);
1281  if (newrelids == NIL)
1282  break; /* nothing else to add */
1283 
1284  foreach(cell, newrelids)
1285  {
1286  Oid relid = lfirst_oid(cell);
1287  Relation rel;
1288 
1289  rel = heap_open(relid, AccessExclusiveLock);
1290  ereport(NOTICE,
1291  (errmsg("truncate cascades to table \"%s\"",
1292  RelationGetRelationName(rel))));
1293  truncate_check_rel(rel);
1294  rels = lappend(rels, rel);
1295  relids = lappend_oid(relids, relid);
1296  }
1297  }
1298  }
1299 
1300  /*
1301  * Check foreign key references. In CASCADE mode, this should be
1302  * unnecessary since we just pulled in all the references; but as a
1303  * cross-check, do it anyway if in an Assert-enabled build.
1304  */
1305 #ifdef USE_ASSERT_CHECKING
1306  heap_truncate_check_FKs(rels, false);
1307 #else
1308  if (stmt->behavior == DROP_RESTRICT)
1309  heap_truncate_check_FKs(rels, false);
1310 #endif
1311 
1312  /*
1313  * If we are asked to restart sequences, find all the sequences, lock them
1314  * (we need AccessExclusiveLock for ResetSequence), and check permissions.
1315  * We want to do this early since it's pointless to do all the truncation
1316  * work only to fail on sequence permissions.
1317  */
1318  if (stmt->restart_seqs)
1319  {
1320  foreach(cell, rels)
1321  {
1322  Relation rel = (Relation) lfirst(cell);
1323  List *seqlist = getOwnedSequences(RelationGetRelid(rel), 0);
1324  ListCell *seqcell;
1325 
1326  foreach(seqcell, seqlist)
1327  {
1328  Oid seq_relid = lfirst_oid(seqcell);
1329  Relation seq_rel;
1330 
1331  seq_rel = relation_open(seq_relid, AccessExclusiveLock);
1332 
1333  /* This check must match AlterSequence! */
1334  if (!pg_class_ownercheck(seq_relid, GetUserId()))
1336  RelationGetRelationName(seq_rel));
1337 
1338  seq_relids = lappend_oid(seq_relids, seq_relid);
1339 
1340  relation_close(seq_rel, NoLock);
1341  }
1342  }
1343  }
1344 
1345  /* Prepare to catch AFTER triggers. */
1347 
1348  /*
1349  * To fire triggers, we'll need an EState as well as a ResultRelInfo for
1350  * each relation. We don't need to call ExecOpenIndices, though.
1351  */
1352  estate = CreateExecutorState();
1353  resultRelInfos = (ResultRelInfo *)
1354  palloc(list_length(rels) * sizeof(ResultRelInfo));
1355  resultRelInfo = resultRelInfos;
1356  foreach(cell, rels)
1357  {
1358  Relation rel = (Relation) lfirst(cell);
1359 
1360  InitResultRelInfo(resultRelInfo,
1361  rel,
1362  0, /* dummy rangetable index */
1363  NULL,
1364  0);
1365  resultRelInfo++;
1366  }
1367  estate->es_result_relations = resultRelInfos;
1368  estate->es_num_result_relations = list_length(rels);
1369 
1370  /*
1371  * Process all BEFORE STATEMENT TRUNCATE triggers before we begin
1372  * truncating (this is because one of them might throw an error). Also, if
1373  * we were to allow them to prevent statement execution, that would need
1374  * to be handled here.
1375  */
1376  resultRelInfo = resultRelInfos;
1377  foreach(cell, rels)
1378  {
1379  estate->es_result_relation_info = resultRelInfo;
1380  ExecBSTruncateTriggers(estate, resultRelInfo);
1381  resultRelInfo++;
1382  }
1383 
1384  /*
1385  * OK, truncate each table.
1386  */
1387  mySubid = GetCurrentSubTransactionId();
1388 
1389  foreach(cell, rels)
1390  {
1391  Relation rel = (Relation) lfirst(cell);
1392 
1393  /* Skip partitioned tables as there is nothing to do */
1394  if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
1395  continue;
1396 
1397  /*
1398  * Normally, we need a transaction-safe truncation here. However, if
1399  * the table was either created in the current (sub)transaction or has
1400  * a new relfilenode in the current (sub)transaction, then we can just
1401  * truncate it in-place, because a rollback would cause the whole
1402  * table or the current physical file to be thrown away anyway.
1403  */
1404  if (rel->rd_createSubid == mySubid ||
1405  rel->rd_newRelfilenodeSubid == mySubid)
1406  {
1407  /* Immediate, non-rollbackable truncation is OK */
1408  heap_truncate_one_rel(rel);
1409  }
1410  else
1411  {
1412  Oid heap_relid;
1413  Oid toast_relid;
1414  MultiXactId minmulti;
1415 
1416  /*
1417  * This effectively deletes all rows in the table, and may be done
1418  * in a serializable transaction. In that case we must record a
1419  * rw-conflict in to this transaction from each transaction
1420  * holding a predicate lock on the table.
1421  */
1423 
1424  minmulti = GetOldestMultiXactId();
1425 
1426  /*
1427  * Need the full transaction-safe pushups.
1428  *
1429  * Create a new empty storage file for the relation, and assign it
1430  * as the relfilenode value. The old storage file is scheduled for
1431  * deletion at commit.
1432  */
1433  RelationSetNewRelfilenode(rel, rel->rd_rel->relpersistence,
1434  RecentXmin, minmulti);
1435  if (rel->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED)
1436  heap_create_init_fork(rel);
1437 
1438  heap_relid = RelationGetRelid(rel);
1439  toast_relid = rel->rd_rel->reltoastrelid;
1440 
1441  /*
1442  * The same for the toast table, if any.
1443  */
1444  if (OidIsValid(toast_relid))
1445  {
1446  rel = relation_open(toast_relid, AccessExclusiveLock);
1447  RelationSetNewRelfilenode(rel, rel->rd_rel->relpersistence,
1448  RecentXmin, minmulti);
1449  if (rel->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED)
1450  heap_create_init_fork(rel);
1451  heap_close(rel, NoLock);
1452  }
1453 
1454  /*
1455  * Reconstruct the indexes to match, and we're done.
1456  */
1458  }
1459 
1460  pgstat_count_truncate(rel);
1461  }
1462 
1463  /*
1464  * Restart owned sequences if we were asked to.
1465  */
1466  foreach(cell, seq_relids)
1467  {
1468  Oid seq_relid = lfirst_oid(cell);
1469 
1470  ResetSequence(seq_relid);
1471  }
1472 
1473  /*
1474  * Process all AFTER STATEMENT TRUNCATE triggers.
1475  */
1476  resultRelInfo = resultRelInfos;
1477  foreach(cell, rels)
1478  {
1479  estate->es_result_relation_info = resultRelInfo;
1480  ExecASTruncateTriggers(estate, resultRelInfo);
1481  resultRelInfo++;
1482  }
1483 
1484  /* Handle queued AFTER triggers */
1485  AfterTriggerEndQuery(estate);
1486 
1487  /* We can clean up the EState now */
1488  FreeExecutorState(estate);
1489 
1490  /* And close the rels (can't do this while EState still holds refs) */
1491  foreach(cell, rels)
1492  {
1493  Relation rel = (Relation) lfirst(cell);
1494 
1495  heap_close(rel, NoLock);
1496  }
1497 }
#define NIL
Definition: pg_list.h:69
void InitResultRelInfo(ResultRelInfo *resultRelInfo, Relation resultRelationDesc, Index resultRelationIndex, Relation partition_root, int instrument_options)
Definition: execMain.c:1260
void RelationSetNewRelfilenode(Relation relation, char persistence, TransactionId freezeXid, MultiXactId minmulti)
Definition: relcache.c:3416
int errhint(const char *fmt,...)
Definition: elog.c:987
#define RELPERSISTENCE_UNLOGGED
Definition: pg_class.h:171
Oid GetUserId(void)
Definition: miscinit.c:283
void heap_truncate_one_rel(Relation rel)
Definition: heap.c:2947
int errcode(int sqlerrcode)
Definition: elog.c:575
TransactionId RecentXmin
Definition: snapmgr.c:165
void heap_truncate_check_FKs(List *relations, bool tempTables)
Definition: heap.c:2984
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
SubTransactionId rd_newRelfilenodeSubid
Definition: rel.h:111
uint32 SubTransactionId
Definition: c.h:401
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
List * lappend_oid(List *list, Oid datum)
Definition: list.c:164
#define OidIsValid(objectId)
Definition: c.h:538
void FreeExecutorState(EState *estate)
Definition: execUtils.c:178
DropBehavior behavior
Definition: parsenodes.h:2557
struct RelationData * Relation
Definition: relcache.h:21
void ExecBSTruncateTriggers(EState *estate, ResultRelInfo *relinfo)
Definition: trigger.c:2814
#define ERROR
Definition: elog.h:43
struct ResultRelInfo ResultRelInfo
List * relations
Definition: parsenodes.h:2555
#define NoLock
Definition: lockdefs.h:34
void heap_create_init_fork(Relation rel)
Definition: heap.c:1380
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
ResultRelInfo * es_result_relations
Definition: execnodes.h:421
bool restart_seqs
Definition: parsenodes.h:2556
void ExecASTruncateTriggers(EState *estate, ResultRelInfo *relinfo)
Definition: trigger.c:2866
#define RelationGetRelationName(relation)
Definition: rel.h:437
void pgstat_count_truncate(Relation rel)
Definition: pgstat.c:1972
#define ereport(elevel, rest)
Definition: elog.h:122
EState * CreateExecutorState(void)
Definition: execUtils.c:80
bool inh
Definition: primnodes.h:69
List * lappend(List *list, void *datum)
Definition: list.c:128
SubTransactionId rd_createSubid
Definition: rel.h:110
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
MultiXactId GetOldestMultiXactId(void)
Definition: multixact.c:2491
List * getOwnedSequences(Oid relid, AttrNumber attnum)
Definition: pg_depend.c:548
static void truncate_check_rel(Relation rel)
Definition: tablecmds.c:1503
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
int es_num_result_relations
Definition: execnodes.h:422
Relation heap_openrv(const RangeVar *relation, LOCKMODE lockmode)
Definition: heapam.c:1312
#define NOTICE
Definition: elog.h:37
void AfterTriggerBeginQuery(void)
Definition: trigger.c:4157
TransactionId MultiXactId
Definition: c.h:407
bool list_member_oid(const List *list, Oid datum)
Definition: list.c:505
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
SubTransactionId GetCurrentSubTransactionId(void)
Definition: xact.c:649
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4546
static int list_length(const List *l)
Definition: pg_list.h:89
void CheckTableForSerializableConflictIn(Relation relation)
Definition: predicate.c:4391
#define AccessExclusiveLock
Definition: lockdefs.h:46
List * find_all_inheritors(Oid parentrelId, LOCKMODE lockmode, List **numparents)
Definition: pg_inherits.c:167
void AfterTriggerEndQuery(EState *estate)
Definition: trigger.c:4177
void * palloc(Size size)
Definition: mcxt.c:849
int errmsg(const char *fmt,...)
Definition: elog.c:797
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define REINDEX_REL_PROCESS_TOAST
Definition: index.h:122
void ResetSequence(Oid seq_relid)
Definition: sequence.c:263
bool reindex_relation(Oid relid, int flags, int options)
Definition: index.c:3509
Definition: pg_list.h:45
#define RelationGetRelid(relation)
Definition: rel.h:417
List * heap_truncate_find_FKs(List *relationIds)
Definition: heap.c:3076
#define lfirst_oid(lc)
Definition: pg_list.h:108
ResultRelInfo * es_result_relation_info
Definition: execnodes.h:423
void find_composite_type_dependencies ( Oid  typeOid,
Relation  origRelation,
const char *  origTypeName 
)

Definition at line 4873 of file tablecmds.c.

References AccessShareLock, Anum_pg_depend_refclassid, Anum_pg_depend_refobjid, tupleDesc::attrs, BTEqualStrategyNumber, DependReferenceIndexId, DependRelationId, ereport, errcode(), errmsg(), ERROR, find_composite_type_dependencies(), get_array_type(), GETSTRUCT, heap_open(), HeapTupleIsValid, NameStr, NULL, ObjectIdGetDatum, OidIsValid, RelationData::rd_att, RelationData::rd_rel, relation_close(), relation_open(), RelationGetRelationName, RelationRelationId, RELKIND_COMPOSITE_TYPE, RELKIND_FOREIGN_TABLE, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, ScanKeyInit(), systable_beginscan(), systable_endscan(), systable_getnext(), and TypeRelationId.

Referenced by ATPrepAlterColumnType(), ATRewriteTables(), find_composite_type_dependencies(), and get_rels_with_domain().

4875 {
4876  Relation depRel;
4877  ScanKeyData key[2];
4878  SysScanDesc depScan;
4879  HeapTuple depTup;
4880  Oid arrayOid;
4881 
4882  /*
4883  * We scan pg_depend to find those things that depend on the rowtype. (We
4884  * assume we can ignore refobjsubid for a rowtype.)
4885  */
4887 
4888  ScanKeyInit(&key[0],
4890  BTEqualStrategyNumber, F_OIDEQ,
4892  ScanKeyInit(&key[1],
4894  BTEqualStrategyNumber, F_OIDEQ,
4895  ObjectIdGetDatum(typeOid));
4896 
4897  depScan = systable_beginscan(depRel, DependReferenceIndexId, true,
4898  NULL, 2, key);
4899 
4900  while (HeapTupleIsValid(depTup = systable_getnext(depScan)))
4901  {
4902  Form_pg_depend pg_depend = (Form_pg_depend) GETSTRUCT(depTup);
4903  Relation rel;
4904  Form_pg_attribute att;
4905 
4906  /* Ignore dependees that aren't user columns of relations */
4907  /* (we assume system columns are never of rowtypes) */
4908  if (pg_depend->classid != RelationRelationId ||
4909  pg_depend->objsubid <= 0)
4910  continue;
4911 
4912  rel = relation_open(pg_depend->objid, AccessShareLock);
4913  att = rel->rd_att->attrs[pg_depend->objsubid - 1];
4914 
4915  if (rel->rd_rel->relkind == RELKIND_RELATION ||
4916  rel->rd_rel->relkind == RELKIND_MATVIEW ||
4917  rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
4918  {
4919  if (origTypeName)
4920  ereport(ERROR,
4921  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4922  errmsg("cannot alter type \"%s\" because column \"%s.%s\" uses it",
4923  origTypeName,
4925  NameStr(att->attname))));
4926  else if (origRelation->rd_rel->relkind == RELKIND_COMPOSITE_TYPE)
4927  ereport(ERROR,
4928  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4929  errmsg("cannot alter type \"%s\" because column \"%s.%s\" uses it",
4930  RelationGetRelationName(origRelation),
4932  NameStr(att->attname))));
4933  else if (origRelation->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
4934  ereport(ERROR,
4935  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4936  errmsg("cannot alter foreign table \"%s\" because column \"%s.%s\" uses its row type",
4937  RelationGetRelationName(origRelation),
4939  NameStr(att->attname))));
4940  else
4941  ereport(ERROR,
4942  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4943  errmsg("cannot alter table \"%s\" because column \"%s.%s\" uses its row type",
4944  RelationGetRelationName(origRelation),
4946  NameStr(att->attname))));
4947  }
4948  else if (OidIsValid(rel->rd_rel->reltype))
4949  {
4950  /*
4951  * A view or composite type itself isn't a problem, but we must
4952  * recursively check for indirect dependencies via its rowtype.
4953  */
4955  origRelation, origTypeName);
4956  }
4957 
4959  }
4960 
4961  systable_endscan(depScan);
4962 
4964 
4965  /*
4966  * If there's an array type for the rowtype, must check for uses of it,
4967  * too.
4968  */
4969  arrayOid = get_array_type(typeOid);
4970  if (OidIsValid(arrayOid))
4971  find_composite_type_dependencies(arrayOid, origRelation, origTypeName);
4972 }
#define Anum_pg_depend_refobjid
Definition: pg_depend.h:72
#define Anum_pg_depend_refclassid
Definition: pg_depend.h:71
void systable_endscan(SysScanDesc sysscan)
Definition: genam.c:499
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
Oid get_array_type(Oid typid)
Definition: lsyscache.c:2512
#define RelationRelationId
Definition: pg_class.h:29
#define DependReferenceIndexId
Definition: indexing.h:147
void find_composite_type_dependencies(Oid typeOid, Relation origRelation, const char *origTypeName)
Definition: tablecmds.c:4873
#define DependRelationId
Definition: pg_depend.h:29
Form_pg_attribute * attrs
Definition: tupdesc.h:74
#define RELKIND_MATVIEW
Definition: pg_class.h:165
#define AccessShareLock
Definition: lockdefs.h:36
int errcode(int sqlerrcode)
Definition: elog.c:575
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
#define TypeRelationId
Definition: pg_type.h:34
#define OidIsValid(objectId)
Definition: c.h:538
SysScanDesc systable_beginscan(Relation heapRelation, Oid indexId, bool indexOK, Snapshot snapshot, int nkeys, ScanKey key)
Definition: genam.c:328
#define RELKIND_COMPOSITE_TYPE
Definition: pg_class.h:166
HeapTuple systable_getnext(SysScanDesc sysscan)
Definition: genam.c:416
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define RelationGetRelationName(relation)
Definition: rel.h:437
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:187
#define RELKIND_FOREIGN_TABLE
Definition: pg_class.h:167
FormData_pg_depend * Form_pg_depend
Definition: pg_depend.h:61
#define ereport(elevel, rest)
Definition: elog.h:122
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
TupleDesc rd_att
Definition: rel.h:115
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define NULL
Definition: c.h:229
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:499
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition: scankey.c:76
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define RELKIND_RELATION
Definition: pg_class.h:160
#define BTEqualStrategyNumber
Definition: stratnum.h:31
void PreCommit_on_commit_actions ( void  )

Definition at line 12792 of file tablecmds.c.

References Assert, ObjectAddress::classId, CommandCounterIncrement(), OnCommitItem::deleting_subid, DROP_CASCADE, heap_truncate(), InvalidSubTransactionId, lappend_oid(), lfirst, MyXactFlags, NIL, OnCommitItem::oncommit, ONCOMMIT_DELETE_ROWS, ONCOMMIT_DROP, ONCOMMIT_NOOP, ONCOMMIT_PRESERVE_ROWS, PERFORM_DELETION_INTERNAL, performDeletion(), RelationRelationId, OnCommitItem::relid, and XACT_FLAGS_ACCESSEDTEMPREL.

Referenced by CommitTransaction(), and PrepareTransaction().

12793 {
12794  ListCell *l;
12795  List *oids_to_truncate = NIL;
12796 
12797  foreach(l, on_commits)
12798  {
12799  OnCommitItem *oc = (OnCommitItem *) lfirst(l);
12800 
12801  /* Ignore entry if already dropped in this xact */
12803  continue;
12804 
12805  switch (oc->oncommit)
12806  {
12807  case ONCOMMIT_NOOP:
12809  /* Do nothing (there shouldn't be such entries, actually) */
12810  break;
12811  case ONCOMMIT_DELETE_ROWS:
12812 
12813  /*
12814  * If this transaction hasn't accessed any temporary
12815  * relations, we can skip truncating ON COMMIT DELETE ROWS
12816  * tables, as they must still be empty.
12817  */
12819  oids_to_truncate = lappend_oid(oids_to_truncate, oc->relid);
12820  break;
12821  case ONCOMMIT_DROP:
12822  {
12823  ObjectAddress object;
12824 
12825  object.classId = RelationRelationId;
12826  object.objectId = oc->relid;
12827  object.objectSubId = 0;
12828 
12829  /*
12830  * Since this is an automatic drop, rather than one
12831  * directly initiated by the user, we pass the
12832  * PERFORM_DELETION_INTERNAL flag.
12833  */
12834  performDeletion(&object,
12836 
12837  /*
12838  * Note that table deletion will call
12839  * remove_on_commit_action, so the entry should get marked
12840  * as deleted.
12841  */
12843  break;
12844  }
12845  }
12846  }
12847  if (oids_to_truncate != NIL)
12848  {
12849  heap_truncate(oids_to_truncate);
12850  CommandCounterIncrement(); /* XXX needed? */
12851  }
12852 }
#define NIL
Definition: pg_list.h:69
OnCommitAction oncommit
Definition: tablecmds.c:111
#define RelationRelationId
Definition: pg_class.h:29
#define XACT_FLAGS_ACCESSEDTEMPREL
Definition: xact.h:87
List * lappend_oid(List *list, Oid datum)
Definition: list.c:164
static List * on_commits
Definition: tablecmds.c:124
void performDeletion(const ObjectAddress *object, DropBehavior behavior, int flags)
Definition: dependency.c:303
int MyXactFlags
Definition: xact.c:118
SubTransactionId deleting_subid
Definition: tablecmds.c:121
void CommandCounterIncrement(void)
Definition: xact.c:922
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
void heap_truncate(List *relids)
Definition: heap.c:2906
#define InvalidSubTransactionId
Definition: c.h:403
Definition: pg_list.h:45
#define PERFORM_DELETION_INTERNAL
Definition: dependency.h:174
void RangeVarCallbackOwnsRelation ( const RangeVar relation,
Oid  relId,
Oid  oldRelId,
void *  noCatalogs 
)

Definition at line 12983 of file tablecmds.c.

References ACL_KIND_CLASS, aclcheck_error(), ACLCHECK_NOT_OWNER, allowSystemTableMods, elog, ereport, errcode(), errmsg(), ERROR, GETSTRUCT, GetUserId(), HeapTupleIsValid, IsSystemClass(), ObjectIdGetDatum, OidIsValid, pg_class_ownercheck(), ReleaseSysCache(), RangeVar::relname, RELOID, and SearchSysCache1.

Referenced by ProcessUtilitySlow().

12985 {
12986  HeapTuple tuple;
12987 
12988  /* Nothing to do if the relation was not found. */
12989  if (!OidIsValid(relId))
12990  return;
12991 
12992  tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relId));
12993  if (!HeapTupleIsValid(tuple)) /* should not happen */
12994  elog(ERROR, "cache lookup failed for relation %u", relId);
12995 
12996  if (!pg_class_ownercheck(relId, GetUserId()))
12998  relation->relname);
12999 
13000  if (!allowSystemTableMods &&
13001  IsSystemClass(relId, (Form_pg_class) GETSTRUCT(tuple)))
13002  ereport(ERROR,
13003  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
13004  errmsg("permission denied: \"%s\" is a system catalog",
13005  relation->relname)));
13006 
13007  ReleaseSysCache(tuple);
13008 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
Oid GetUserId(void)
Definition: miscinit.c:283
int errcode(int sqlerrcode)
Definition: elog.c:575
#define OidIsValid(objectId)
Definition: c.h:538
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:152
bool IsSystemClass(Oid relid, Form_pg_class reltuple)
Definition: catalog.c:74
char * relname
Definition: primnodes.h:68
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
#define ereport(elevel, rest)
Definition: elog.h:122
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1116
bool allowSystemTableMods
Definition: globals.c:111
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4546
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define elog
Definition: elog.h:219
void RangeVarCallbackOwnsTable ( const RangeVar relation,
Oid  relId,
Oid  oldRelId,
void *  arg 
)

Definition at line 12950 of file tablecmds.c.

References ACL_KIND_CLASS, aclcheck_error(), ACLCHECK_NOT_OWNER, ereport, errcode(), errmsg(), ERROR, get_rel_relkind(), GetUserId(), OidIsValid, pg_class_ownercheck(), DropRelationCallbackState::relkind, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, RELKIND_TOASTVALUE, and RangeVar::relname.

Referenced by cluster(), ExecRefreshMatView(), and ReindexTable().

12952 {
12953  char relkind;
12954 
12955  /* Nothing to do if the relation was not found. */
12956  if (!OidIsValid(relId))
12957  return;
12958 
12959  /*
12960  * If the relation does exist, check whether it's an index. But note that
12961  * the relation might have been dropped between the time we did the name
12962  * lookup and now. In that case, there's nothing to do.
12963  */
12964  relkind = get_rel_relkind(relId);
12965  if (!relkind)
12966  return;
12967  if (relkind != RELKIND_RELATION && relkind != RELKIND_TOASTVALUE &&
12968  relkind != RELKIND_MATVIEW && relkind != RELKIND_PARTITIONED_TABLE)
12969  ereport(ERROR,
12970  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
12971  errmsg("\"%s\" is not a table or materialized view", relation->relname)));
12972 
12973  /* Check permissions */
12974  if (!pg_class_ownercheck(relId, GetUserId()))
12976 }
Oid GetUserId(void)
Definition: miscinit.c:283
char get_rel_relkind(Oid relid)
Definition: lsyscache.c:1801
#define RELKIND_MATVIEW
Definition: pg_class.h:165
int errcode(int sqlerrcode)
Definition: elog.c:575
#define OidIsValid(objectId)
Definition: c.h:538
char * relname
Definition: primnodes.h:68
#define ERROR
Definition: elog.h:43
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
#define ereport(elevel, rest)
Definition: elog.h:122
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
#define RELKIND_TOASTVALUE
Definition: pg_class.h:163
bool pg_class_ownercheck(Oid class_oid, Oid roleid)
Definition: aclchk.c:4546
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RELKIND_RELATION
Definition: pg_class.h:160
void register_on_commit_action ( Oid  relid,
OnCommitAction  action 
)

Definition at line 12738 of file tablecmds.c.

References CacheMemoryContext, OnCommitItem::creating_subid, OnCommitItem::deleting_subid, GetCurrentSubTransactionId(), InvalidSubTransactionId, lcons(), MemoryContextSwitchTo(), OnCommitItem::oncommit, ONCOMMIT_NOOP, ONCOMMIT_PRESERVE_ROWS, palloc(), and OnCommitItem::relid.

Referenced by heap_create_with_catalog().

12739 {
12740  OnCommitItem *oc;
12741  MemoryContext oldcxt;
12742 
12743  /*
12744  * We needn't bother registering the relation unless there is an ON COMMIT
12745  * action we need to take.
12746  */
12747  if (action == ONCOMMIT_NOOP || action == ONCOMMIT_PRESERVE_ROWS)
12748  return;
12749 
12751 
12752  oc = (OnCommitItem *) palloc(sizeof(OnCommitItem));
12753  oc->relid = relid;
12754  oc->oncommit = action;
12757 
12758  on_commits = lcons(oc, on_commits);
12759 
12760  MemoryContextSwitchTo(oldcxt);
12761 }
OnCommitAction oncommit
Definition: tablecmds.c:111
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
SubTransactionId creating_subid
Definition: tablecmds.c:120
static List * on_commits
Definition: tablecmds.c:124
SubTransactionId deleting_subid
Definition: tablecmds.c:121
List * lcons(void *datum, List *list)
Definition: list.c:259
SubTransactionId GetCurrentSubTransactionId(void)
Definition: xact.c:649
#define InvalidSubTransactionId
Definition: c.h:403
void * palloc(Size size)
Definition: mcxt.c:849
MemoryContext CacheMemoryContext
Definition: mcxt.c:46
void remove_on_commit_action ( Oid  relid)

Definition at line 12769 of file tablecmds.c.

References OnCommitItem::deleting_subid, GetCurrentSubTransactionId(), lfirst, and OnCommitItem::relid.

Referenced by heap_drop_with_catalog().

12770 {
12771  ListCell *l;
12772 
12773  foreach(l, on_commits)
12774  {
12775  OnCommitItem *oc = (OnCommitItem *) lfirst(l);
12776 
12777  if (oc->relid == relid)
12778  {
12780  break;
12781  }
12782  }
12783 }
static List * on_commits
Definition: tablecmds.c:124
SubTransactionId deleting_subid
Definition: tablecmds.c:121
#define lfirst(lc)
Definition: pg_list.h:106
SubTransactionId GetCurrentSubTransactionId(void)
Definition: xact.c:649
void RemoveRelations ( DropStmt drop)

Definition at line 964 of file tablecmds.c.

References AcceptInvalidationMessages(), AccessExclusiveLock, add_exact_object_address(), Assert, DropStmt::behavior, ObjectAddress::classId, DropRelationCallbackState::concurrent, DropStmt::concurrent, DROP_CASCADE, DropErrorMsgNonExistent(), elog, ereport, errcode(), errmsg(), ERROR, free_object_addresses(), DropRelationCallbackState::heapOid, InvalidOid, lfirst, list_length(), makeRangeVarFromNameList(), DropStmt::missing_ok, new_object_addresses(), OBJECT_FOREIGN_TABLE, OBJECT_INDEX, OBJECT_MATVIEW, OBJECT_SEQUENCE, OBJECT_TABLE, OBJECT_VIEW, ObjectAddress::objectId, DropStmt::objects, ObjectAddress::objectSubId, OidIsValid, DropRelationCallbackState::partParentOid, PERFORM_DELETION_CONCURRENTLY, performMultipleDeletions(), RangeVarCallbackForDropRelation(), RangeVarGetRelidExtended(), RelationRelationId, DropRelationCallbackState::relkind, RELKIND_FOREIGN_TABLE, RELKIND_INDEX, RELKIND_MATVIEW, RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_VIEW, DropStmt::removeType, and ShareUpdateExclusiveLock.

Referenced by ExecDropStmt().

965 {
966  ObjectAddresses *objects;
967  char relkind;
968  ListCell *cell;
969  int flags = 0;
970  LOCKMODE lockmode = AccessExclusiveLock;
971 
972  /* DROP CONCURRENTLY uses a weaker lock, and has some restrictions */
973  if (drop->concurrent)
974  {
976  lockmode = ShareUpdateExclusiveLock;
977  Assert(drop->removeType == OBJECT_INDEX);
978  if (list_length(drop->objects) != 1)
979  ereport(ERROR,
980  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
981  errmsg("DROP INDEX CONCURRENTLY does not support dropping multiple objects")));
982  if (drop->behavior == DROP_CASCADE)
983  ereport(ERROR,
984  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
985  errmsg("DROP INDEX CONCURRENTLY does not support CASCADE")));
986  }
987 
988  /*
989  * First we identify all the relations, then we delete them in a single
990  * performMultipleDeletions() call. This is to avoid unwanted DROP
991  * RESTRICT errors if one of the relations depends on another.
992  */
993 
994  /* Determine required relkind */
995  switch (drop->removeType)
996  {
997  case OBJECT_TABLE:
998  relkind = RELKIND_RELATION;
999  break;
1000 
1001  case OBJECT_INDEX:
1002  relkind = RELKIND_INDEX;
1003  break;
1004 
1005  case OBJECT_SEQUENCE:
1006  relkind = RELKIND_SEQUENCE;
1007  break;
1008 
1009  case OBJECT_VIEW:
1010  relkind = RELKIND_VIEW;
1011  break;
1012 
1013  case OBJECT_MATVIEW:
1014  relkind = RELKIND_MATVIEW;
1015  break;
1016 
1017  case OBJECT_FOREIGN_TABLE:
1018  relkind = RELKIND_FOREIGN_TABLE;
1019  break;
1020 
1021  default:
1022  elog(ERROR, "unrecognized drop object type: %d",
1023  (int) drop->removeType);
1024  relkind = 0; /* keep compiler quiet */
1025  break;
1026  }
1027 
1028  /* Lock and validate each relation; build a list of object addresses */
1029  objects = new_object_addresses();
1030 
1031  foreach(cell, drop->objects)
1032  {
1033  RangeVar *rel = makeRangeVarFromNameList((List *) lfirst(cell));
1034  Oid relOid;
1035  ObjectAddress obj;
1037 
1038  /*
1039  * These next few steps are a great deal like relation_openrv, but we
1040  * don't bother building a relcache entry since we don't need it.
1041  *
1042  * Check for shared-cache-inval messages before trying to access the
1043  * relation. This is needed to cover the case where the name
1044  * identifies a rel that has been dropped and recreated since the
1045  * start of our transaction: if we don't flush the old syscache entry,
1046  * then we'll latch onto that entry and suffer an error later.
1047  */
1049 
1050  /* Look up the appropriate relation using namespace search. */
1051  state.relkind = relkind;
1052  state.heapOid = InvalidOid;
1053  state.partParentOid = InvalidOid;
1054  state.concurrent = drop->concurrent;
1055  relOid = RangeVarGetRelidExtended(rel, lockmode, true,
1056  false,
1058  (void *) &state);
1059 
1060  /* Not there? */
1061  if (!OidIsValid(relOid))
1062  {
1063  DropErrorMsgNonExistent(rel, relkind, drop->missing_ok);
1064  continue;
1065  }
1066 
1067  /* OK, we're ready to delete this one */
1069  obj.objectId = relOid;
1070  obj.objectSubId = 0;
1071 
1072  add_exact_object_address(&obj, objects);
1073  }
1074 
1075  performMultipleDeletions(objects, drop->behavior, flags);
1076 
1077  free_object_addresses(objects);
1078 }
void AcceptInvalidationMessages(void)
Definition: inval.c:672
int LOCKMODE
Definition: lockdefs.h:26
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
#define RelationRelationId
Definition: pg_class.h:29
List * objects
Definition: parsenodes.h:2541
bool missing_ok
Definition: parsenodes.h:2544
#define RELKIND_MATVIEW
Definition: pg_class.h:165
int errcode(int sqlerrcode)
Definition: elog.c:575
RangeVar * makeRangeVarFromNameList(List *names)
Definition: namespace.c:2913
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2094
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2039
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2310
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
ObjectType removeType
Definition: parsenodes.h:2542
#define PERFORM_DELETION_CONCURRENTLY
Definition: dependency.h:175
#define ERROR
Definition: elog.h:43
bool concurrent
Definition: parsenodes.h:2545
DropBehavior behavior
Definition: parsenodes.h:2543
#define RELKIND_FOREIGN_TABLE
Definition: pg_class.h:167
#define ereport(elevel, rest)
Definition: elog.h:122
static void RangeVarCallbackForDropRelation(const RangeVar *rel, Oid relOid, Oid oldRelOid, void *arg)
Definition: tablecmds.c:1087
#define InvalidOid
Definition: postgres_ext.h:36
#define ShareUpdateExclusiveLock
Definition: lockdefs.h:39
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
Definition: regguts.h:298
static int list_length(const List *l)
Definition: pg_list.h:89
#define AccessExclusiveLock
Definition: lockdefs.h:46
static void DropErrorMsgNonExistent(RangeVar *rel, char rightkind, bool missing_ok)
Definition: tablecmds.c:889
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RELKIND_VIEW
Definition: pg_class.h:164
#define RELKIND_INDEX
Definition: pg_class.h:161
void performMultipleDeletions(const ObjectAddresses *objects, DropBehavior behavior, int flags)
Definition: dependency.c:362
#define elog
Definition: elog.h:219
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
Definition: pg_list.h:45
ObjectAddress renameatt ( RenameStmt stmt)

Definition at line 2687 of file tablecmds.c.

References AccessExclusiveLock, RenameStmt::behavior, ereport, errmsg(), RangeVar::inh, InvalidObjectAddress, RenameStmt::missing_ok, RenameStmt::newname, NOTICE, NULL, ObjectAddressSubSet, OidIsValid, RangeVarCallbackForRenameAttribute(), RangeVarGetRelidExtended(), RenameStmt::relation, RelationRelationId, RangeVar::relname, renameatt_internal(), and RenameStmt::subname.

Referenced by ExecRenameStmt().

2688 {
2689  Oid relid;
2690  AttrNumber attnum;
2691  ObjectAddress address;
2692 
2693  /* lock level taken here should match renameatt_internal */
2695  stmt->missing_ok, false,
2697  NULL);
2698 
2699  if (!OidIsValid(relid))
2700  {
2701  ereport(NOTICE,
2702  (errmsg("relation \"%s\" does not exist, skipping",
2703  stmt->relation->relname)));
2704  return InvalidObjectAddress;
2705  }
2706 
2707  attnum =
2708  renameatt_internal(relid,
2709  stmt->subname, /* old att name */
2710  stmt->newname, /* new att name */
2711  stmt->relation->inh, /* recursive? */
2712  false, /* recursing? */
2713  0, /* expected inhcount */
2714  stmt->behavior);
2715 
2716  ObjectAddressSubSet(address, RelationRelationId, relid, attnum);
2717 
2718  return address;
2719 }
char * subname
Definition: parsenodes.h:2769
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
#define RelationRelationId
Definition: pg_class.h:29
char * newname
Definition: parsenodes.h:2771
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
char * relname
Definition: primnodes.h:68
bool missing_ok
Definition: parsenodes.h:2773
#define ereport(elevel, rest)
Definition: elog.h:122
bool inh
Definition: primnodes.h:69
RangeVar * relation
Definition: parsenodes.h:2767
#define NOTICE
Definition: elog.h:37
static void RangeVarCallbackForRenameAttribute(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:2667
#define NULL
Definition: c.h:229
static AttrNumber renameatt_internal(Oid myrelid, const char *oldattname, const char *newattname, bool recurse, bool recursing, int expected_parents, DropBehavior behavior)
Definition: tablecmds.c:2522
#define ObjectAddressSubSet(addr, class_id, object_id, object_sub_id)
Definition: objectaddress.h:33
#define AccessExclusiveLock
Definition: lockdefs.h:46
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:797
DropBehavior behavior
Definition: parsenodes.h:2772
int16 AttrNumber
Definition: attnum.h:21
ObjectAddress renameatt_type ( RenameStmt stmt)
ObjectAddress RenameConstraint ( RenameStmt stmt)

Definition at line 2824 of file tablecmds.c.

References AccessExclusiveLock, castNode, checkDomainOwner(), elog, ereport, errmsg(), ERROR, heap_close, heap_open(), HeapTupleIsValid, RangeVar::inh, InvalidObjectAddress, InvalidOid, makeTypeNameFromNameList(), RenameStmt::missing_ok, RenameStmt::newname, NoLock, NOTICE, NULL, RenameStmt::object, OBJECT_DOMCONSTRAINT, ObjectIdGetDatum, OidIsValid, RangeVarCallbackForRenameAttribute(), RangeVarGetRelidExtended(), RenameStmt::relation, ReleaseSysCache(), RangeVar::relname, rename_constraint_internal(), RenameStmt::renameType, RowExclusiveLock, SearchSysCache1, RenameStmt::subname, typenameTypeId(), TYPEOID, and TypeRelationId.

Referenced by ExecRenameStmt().

2825 {
2826  Oid relid = InvalidOid;
2827  Oid typid = InvalidOid;
2828 
2829  if (stmt->renameType == OBJECT_DOMCONSTRAINT)
2830  {
2831  Relation rel;
2832  HeapTuple tup;
2833 
2836  tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typid));
2837  if (!HeapTupleIsValid(tup))
2838  elog(ERROR, "cache lookup failed for type %u", typid);
2839  checkDomainOwner(tup);
2840  ReleaseSysCache(tup);
2841  heap_close(rel, NoLock);
2842  }
2843  else
2844  {
2845  /* lock level taken here should match rename_constraint_internal */
2847  stmt->missing_ok, false,
2849  NULL);
2850  if (!OidIsValid(relid))
2851  {
2852  ereport(NOTICE,
2853  (errmsg("relation \"%s\" does not exist, skipping",
2854  stmt->relation->relname)));
2855  return InvalidObjectAddress;
2856  }
2857  }
2858 
2859  return
2860  rename_constraint_internal(relid, typid,
2861  stmt->subname,
2862  stmt->newname,
2863  (stmt->relation &&
2864  stmt->relation->inh), /* recursive? */
2865  false, /* recursing? */
2866  0 /* expected inhcount */ );
2867 
2868 }
char * subname
Definition: parsenodes.h:2769
ObjectType renameType
Definition: parsenodes.h:2765
#define castNode(_type_, nodeptr)
Definition: nodes.h:578
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
#define heap_close(r, l)
Definition: heapam.h:97
static ObjectAddress rename_constraint_internal(Oid myrelid, Oid mytypid, const char *oldconname, const char *newconname, bool recurse, bool recursing, int expected_parents)
Definition: tablecmds.c:2725
char * newname
Definition: parsenodes.h:2771
unsigned int Oid
Definition: postgres_ext.h:31
#define TypeRelationId
Definition: pg_type.h:34
#define OidIsValid(objectId)
Definition: c.h:538
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:152
char * relname
Definition: primnodes.h:68
bool missing_ok
Definition: parsenodes.h:2773
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define NoLock
Definition: lockdefs.h:34
#define RowExclusiveLock
Definition: lockdefs.h:38
Node * object
Definition: parsenodes.h:2768
#define ereport(elevel, rest)
Definition: elog.h:122
bool inh
Definition: primnodes.h:69
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1116
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
RangeVar * relation
Definition: parsenodes.h:2767
#define InvalidOid
Definition: postgres_ext.h:36
#define NOTICE
Definition: elog.h:37
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
static void RangeVarCallbackForRenameAttribute(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:2667
#define NULL
Definition: c.h:229
void checkDomainOwner(HeapTuple tup)
Definition: typecmds.c:2952
#define AccessExclusiveLock
Definition: lockdefs.h:46
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:797
TypeName * makeTypeNameFromNameList(List *names)
Definition: makefuncs.c:453
#define elog
Definition: elog.h:219
Definition: pg_list.h:45
Oid typenameTypeId(ParseState *pstate, const TypeName *typeName)
Definition: parse_type.c:274
ObjectAddress RenameRelation ( RenameStmt stmt)

Definition at line 2875 of file tablecmds.c.

References AccessExclusiveLock, ereport, errmsg(), InvalidObjectAddress, RenameStmt::missing_ok, RenameStmt::newname, NOTICE, ObjectAddressSet, OidIsValid, RangeVarCallbackForAlterRelation(), RangeVarGetRelidExtended(), RenameStmt::relation, RelationRelationId, RangeVar::relname, and RenameRelationInternal().

Referenced by ExecRenameStmt().

2876 {
2877  Oid relid;
2878  ObjectAddress address;
2879 
2880  /*
2881  * Grab an exclusive lock on the target table, index, sequence, view,
2882  * materialized view, or foreign table, which we will NOT release until
2883  * end of transaction.
2884  *
2885  * Lock level used here should match RenameRelationInternal, to avoid lock
2886  * escalation.
2887  */
2889  stmt->missing_ok, false,
2891  (void *) stmt);
2892 
2893  if (!OidIsValid(relid))
2894  {
2895  ereport(NOTICE,
2896  (errmsg("relation \"%s\" does not exist, skipping",
2897  stmt->relation->relname)));
2898  return InvalidObjectAddress;
2899  }
2900 
2901  /* Do the work */
2902  RenameRelationInternal(relid, stmt->newname, false);
2903 
2904  ObjectAddressSet(address, RelationRelationId, relid);
2905 
2906  return address;
2907 }
void RenameRelationInternal(Oid myrelid, const char *newrelname, bool is_internal)
Definition: tablecmds.c:2919
Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg)
Definition: namespace.c:217
#define RelationRelationId
Definition: pg_class.h:29
char * newname
Definition: parsenodes.h:2771
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
char * relname
Definition: primnodes.h:68
bool missing_ok
Definition: parsenodes.h:2773
static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:13015
#define ereport(elevel, rest)
Definition: elog.h:122
RangeVar * relation
Definition: parsenodes.h:2767
#define NOTICE
Definition: elog.h:37
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define AccessExclusiveLock
Definition: lockdefs.h:46
const ObjectAddress InvalidObjectAddress
int errmsg(const char *fmt,...)
Definition: elog.c:797
void RenameRelationInternal ( Oid  myrelid,
const char *  newrelname,
bool  is_internal 
)

Definition at line 2919 of file tablecmds.c.

References AccessExclusiveLock, CatalogTupleUpdate(), elog, ereport, errcode(), errmsg(), ERROR, get_index_constraint(), get_relname_relid(), GETSTRUCT, heap_close, heap_freetuple(), heap_open(), HeapTupleIsValid, InvalidOid, InvokeObjectPostAlterHookArg, namestrcpy(), NoLock, ObjectIdGetDatum, OidIsValid, RelationData::rd_rel, relation_close(), relation_open(), RelationGetNamespace, RelationRelationId, RELKIND_INDEX, RELOID, RenameConstraintById(), RenameTypeInternal(), RowExclusiveLock, SearchSysCacheCopy1, and HeapTupleData::t_self.

Referenced by ATExecAddIndexConstraint(), finish_heap_swap(), rename_constraint_internal(), RenameRelation(), and RenameType().

2920 {
2921  Relation targetrelation;
2922  Relation relrelation; /* for RELATION relation */
2923  HeapTuple reltup;
2924  Form_pg_class relform;
2925  Oid namespaceId;
2926 
2927  /*
2928  * Grab an exclusive lock on the target table, index, sequence, view,
2929  * materialized view, or foreign table, which we will NOT release until
2930  * end of transaction.
2931  */
2932  targetrelation = relation_open(myrelid, AccessExclusiveLock);
2933  namespaceId = RelationGetNamespace(targetrelation);
2934 
2935  /*
2936  * Find relation's pg_class tuple, and make sure newrelname isn't in use.
2937  */
2939 
2940  reltup = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(myrelid));
2941  if (!HeapTupleIsValid(reltup)) /* shouldn't happen */
2942  elog(ERROR, "cache lookup failed for relation %u", myrelid);
2943  relform = (Form_pg_class) GETSTRUCT(reltup);
2944 
2945  if (get_relname_relid(newrelname, namespaceId) != InvalidOid)
2946  ereport(ERROR,
2947  (errcode(ERRCODE_DUPLICATE_TABLE),
2948  errmsg("relation \"%s\" already exists",
2949  newrelname)));
2950 
2951  /*
2952  * Update pg_class tuple with new relname. (Scribbling on reltup is OK
2953  * because it's a copy...)
2954  */
2955  namestrcpy(&(relform->relname), newrelname);
2956 
2957  CatalogTupleUpdate(relrelation, &reltup->t_self, reltup);
2958 
2960  InvalidOid, is_internal);
2961 
2962  heap_freetuple(reltup);
2963  heap_close(relrelation, RowExclusiveLock);
2964 
2965  /*
2966  * Also rename the associated type, if any.
2967  */
2968  if (OidIsValid(targetrelation->rd_rel->reltype))
2969  RenameTypeInternal(targetrelation->rd_rel->reltype,
2970  newrelname, namespaceId);
2971 
2972  /*
2973  * Also rename the associated constraint, if any.
2974  */
2975  if (targetrelation->rd_rel->relkind == RELKIND_INDEX)
2976  {
2977  Oid constraintId = get_index_constraint(myrelid);
2978 
2979  if (OidIsValid(constraintId))
2980  RenameConstraintById(constraintId, newrelname);
2981  }
2982 
2983  /*
2984  * Close rel, but keep exclusive lock!
2985  */
2986  relation_close(targetrelation, NoLock);
2987 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define RelationRelationId
Definition: pg_class.h:29
int errcode(int sqlerrcode)
Definition: elog.c:575
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1260
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:114
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1374
unsigned int Oid
Definition: postgres_ext.h:31
int namestrcpy(Name name, const char *str)
Definition: name.c:217
#define OidIsValid(objectId)
Definition: c.h:538
void RenameConstraintById(Oid conId, const char *newname)
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
Oid get_relname_relid(const char *relname, Oid relnamespace)
Definition: lsyscache.c:1683
#define NoLock
Definition: lockdefs.h:34
#define InvokeObjectPostAlterHookArg(classId, objectId, subId,auxiliaryId, is_internal)
Definition: objectaccess.h:166
#define RowExclusiveLock
Definition: lockdefs.h:38
Oid get_index_constraint(Oid indexId)
Definition: pg_depend.c:684
#define ereport(elevel, rest)
Definition: elog.h:122
void RenameTypeInternal(Oid typeOid, const char *newTypeName, Oid typeNamespace)
Definition: pg_type.c:692
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define InvalidOid
Definition: postgres_ext.h:36
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:161
#define AccessExclusiveLock
Definition: lockdefs.h:46
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RELKIND_INDEX
Definition: pg_class.h:161
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1114
#define elog
Definition: elog.h:219
#define RelationGetNamespace(relation)
Definition: rel.h:444
void SetRelationHasSubclass ( Oid  relationId,
bool  relhassubclass 
)

Definition at line 2441 of file tablecmds.c.

References CacheInvalidateRelcacheByTuple(), CatalogTupleUpdate(), elog, ERROR, GETSTRUCT, heap_close, heap_freetuple(), heap_open(), HeapTupleIsValid, ObjectIdGetDatum, RelationRelationId, RELOID, RowExclusiveLock, SearchSysCacheCopy1, and HeapTupleData::t_self.

Referenced by acquire_inherited_sample_rows(), and StoreCatalogInheritance1().

2442 {
2443  Relation relationRelation;
2444  HeapTuple tuple;
2445  Form_pg_class classtuple;
2446 
2447  /*
2448  * Fetch a modifiable copy of the tuple, modify it, update pg_class.
2449  */
2450  relationRelation = heap_open(RelationRelationId, RowExclusiveLock);
2451  tuple = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(relationId));
2452  if (!HeapTupleIsValid(tuple))
2453  elog(ERROR, "cache lookup failed for relation %u", relationId);
2454  classtuple = (Form_pg_class) GETSTRUCT(tuple);
2455 
2456  if (classtuple->relhassubclass != relhassubclass)
2457  {
2458  classtuple->relhassubclass = relhassubclass;
2459  CatalogTupleUpdate(relationRelation, &tuple->t_self, tuple);
2460  }
2461  else
2462  {
2463  /* no need to change tuple, but force relcache rebuild anyway */
2465  }
2466 
2467  heap_freetuple(tuple);
2468  heap_close(relationRelation, RowExclusiveLock);
2469 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define RelationRelationId
Definition: pg_class.h:29
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1374
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:161
void CacheInvalidateRelcacheByTuple(HeapTuple classTuple)
Definition: inval.c:1262
#define elog
Definition: elog.h:219