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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 12194 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().

12198 {
12199  HeapTuple classTup;
12200  Form_pg_class classForm;
12201  ObjectAddress thisobj;
12202  bool already_done = false;
12203 
12204  classTup = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(relOid));
12205  if (!HeapTupleIsValid(classTup))
12206  elog(ERROR, "cache lookup failed for relation %u", relOid);
12207  classForm = (Form_pg_class) GETSTRUCT(classTup);
12208 
12209  Assert(classForm->relnamespace == oldNspOid);
12210 
12211  thisobj.classId = RelationRelationId;
12212  thisobj.objectId = relOid;
12213  thisobj.objectSubId = 0;
12214 
12215  /*
12216  * If the object has already been moved, don't move it again. If it's
12217  * already in the right place, don't move it, but still fire the object
12218  * access hook.
12219  */
12220  already_done = object_address_present(&thisobj, objsMoved);
12221  if (!already_done && oldNspOid != newNspOid)
12222  {
12223  /* check for duplicate name (more friendly than unique-index failure) */
12224  if (get_relname_relid(NameStr(classForm->relname),
12225  newNspOid) != InvalidOid)
12226  ereport(ERROR,
12227  (errcode(ERRCODE_DUPLICATE_TABLE),
12228  errmsg("relation \"%s\" already exists in schema \"%s\"",
12229  NameStr(classForm->relname),
12230  get_namespace_name(newNspOid))));
12231 
12232  /* classTup is a copy, so OK to scribble on */
12233  classForm->relnamespace = newNspOid;
12234 
12235  CatalogTupleUpdate(classRel, &classTup->t_self, classTup);
12236 
12237  /* Update dependency on schema if caller said so */
12238  if (hasDependEntry &&
12240  relOid,
12242  oldNspOid,
12243  newNspOid) != 1)
12244  elog(ERROR, "failed to change schema dependency for relation \"%s\"",
12245  NameStr(classForm->relname));
12246  }
12247  if (!already_done)
12248  {
12249  add_exact_object_address(&thisobj, objsMoved);
12250 
12252  }
12253 
12254  heap_freetuple(classTup);
12255 }
#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:2141
int errcode(int sqlerrcode)
Definition: elog.c:575
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2081
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:1651
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3006
#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:158
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 3049 of file tablecmds.c.

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

Referenced by ProcessUtilitySlow().

3050 {
3051  Relation rel;
3052 
3053  /* Caller is required to provide an adequate lock. */
3054  rel = relation_open(relid, NoLock);
3055 
3056  CheckTableNotInUse(rel, "ALTER TABLE");
3057 
3058  ATController(stmt, rel, stmt->cmds, stmt->relation->inh, lockmode);
3059 }
static void ATController(AlterTableStmt *parsetree, Relation rel, List *cmds, bool recurse, LOCKMODE lockmode)
Definition: tablecmds.c:3364
#define NoLock
Definition: lockdefs.h:34
void CheckTableNotInUse(Relation rel, const char *stmt)
Definition: tablecmds.c:2970
bool inh
Definition: primnodes.h:69
RangeVar * relation
Definition: parsenodes.h:1640
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1117
LOCKMODE AlterTableGetLockLevel ( List cmds)

Definition at line 3118 of file tablecmds.c.

References AccessExclusiveLock, AlterTableGetRelOptionsLockLevel(), AT_AddColumn, AT_AddColumnToView, AT_AddConstraint, AT_AddConstraintRecurse, 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_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_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().

3119 {
3120  /*
3121  * This only works if we read catalog tables using MVCC snapshots.
3122  */
3123  ListCell *lcmd;
3125 
3126  foreach(lcmd, cmds)
3127  {
3128  AlterTableCmd *cmd = (AlterTableCmd *) lfirst(lcmd);
3129  LOCKMODE cmd_lockmode = AccessExclusiveLock; /* default for compiler */
3130 
3131  switch (cmd->subtype)
3132  {
3133  /*
3134  * These subcommands rewrite the heap, so require full locks.
3135  */
3136  case AT_AddColumn: /* may rewrite heap, in some cases and visible
3137  * to SELECT */
3138  case AT_SetTableSpace: /* must rewrite heap */
3139  case AT_AlterColumnType: /* must rewrite heap */
3140  case AT_AddOids: /* must rewrite heap */
3141  cmd_lockmode = AccessExclusiveLock;
3142  break;
3143 
3144  /*
3145  * These subcommands may require addition of toast tables. If
3146  * we add a toast table to a table currently being scanned, we
3147  * might miss data added to the new toast table by concurrent
3148  * insert transactions.
3149  */
3150  case AT_SetStorage:/* may add toast tables, see
3151  * ATRewriteCatalogs() */
3152  cmd_lockmode = AccessExclusiveLock;
3153  break;
3154 
3155  /*
3156  * Removing constraints can affect SELECTs that have been
3157  * optimised assuming the constraint holds true.
3158  */
3159  case AT_DropConstraint: /* as DROP INDEX */
3160  case AT_DropNotNull: /* may change some SQL plans */
3161  cmd_lockmode = AccessExclusiveLock;
3162  break;
3163 
3164  /*
3165  * Subcommands that may be visible to concurrent SELECTs
3166  */
3167  case AT_DropColumn: /* change visible to SELECT */
3168  case AT_AddColumnToView: /* CREATE VIEW */
3169  case AT_DropOids: /* calls AT_DropColumn */
3170  case AT_EnableAlwaysRule: /* may change SELECT rules */
3171  case AT_EnableReplicaRule: /* may change SELECT rules */
3172  case AT_EnableRule: /* may change SELECT rules */
3173  case AT_DisableRule: /* may change SELECT rules */
3174  cmd_lockmode = AccessExclusiveLock;
3175  break;
3176 
3177  /*
3178  * Changing owner may remove implicit SELECT privileges
3179  */
3180  case AT_ChangeOwner: /* change visible to SELECT */
3181  cmd_lockmode = AccessExclusiveLock;
3182  break;
3183 
3184  /*
3185  * Changing foreign table options may affect optimization.
3186  */
3187  case AT_GenericOptions:
3189  cmd_lockmode = AccessExclusiveLock;
3190  break;
3191 
3192  /*
3193  * These subcommands affect write operations only.
3194  */
3195  case AT_EnableTrig:
3196  case AT_EnableAlwaysTrig:
3197  case AT_EnableReplicaTrig:
3198  case AT_EnableTrigAll:
3199  case AT_EnableTrigUser:
3200  case AT_DisableTrig:
3201  case AT_DisableTrigAll:
3202  case AT_DisableTrigUser:
3203  cmd_lockmode = ShareRowExclusiveLock;
3204  break;
3205 
3206  /*
3207  * These subcommands affect write operations only. XXX
3208  * Theoretically, these could be ShareRowExclusiveLock.
3209  */
3210  case AT_ColumnDefault:
3211  case AT_AlterConstraint:
3212  case AT_AddIndex: /* from ADD CONSTRAINT */
3213  case AT_AddIndexConstraint:
3214  case AT_ReplicaIdentity:
3215  case AT_SetNotNull:
3216  case AT_EnableRowSecurity:
3217  case AT_DisableRowSecurity:
3218  case AT_ForceRowSecurity:
3219  case AT_NoForceRowSecurity:
3220  cmd_lockmode = AccessExclusiveLock;
3221  break;
3222 
3223  case AT_AddConstraint:
3224  case AT_ProcessedConstraint: /* becomes AT_AddConstraint */
3225  case AT_AddConstraintRecurse: /* becomes AT_AddConstraint */
3226  case AT_ReAddConstraint: /* becomes AT_AddConstraint */
3227  if (IsA(cmd->def, Constraint))
3228  {
3229  Constraint *con = (Constraint *) cmd->def;
3230 
3231  switch (con->contype)
3232  {
3233  case CONSTR_EXCLUSION:
3234  case CONSTR_PRIMARY:
3235  case CONSTR_UNIQUE:
3236 
3237  /*
3238  * Cases essentially the same as CREATE INDEX. We
3239  * could reduce the lock strength to ShareLock if
3240  * we can work out how to allow concurrent catalog
3241  * updates. XXX Might be set down to
3242  * ShareRowExclusiveLock but requires further
3243  * analysis.
3244  */
3245  cmd_lockmode = AccessExclusiveLock;
3246  break;
3247  case CONSTR_FOREIGN:
3248 
3249  /*
3250  * We add triggers to both tables when we add a
3251  * Foreign Key, so the lock level must be at least
3252  * as strong as CREATE TRIGGER.
3253  */
3254  cmd_lockmode = ShareRowExclusiveLock;
3255  break;
3256 
3257  default:
3258  cmd_lockmode = AccessExclusiveLock;
3259  }
3260  }
3261  break;
3262 
3263  /*
3264  * These subcommands affect inheritance behaviour. Queries
3265  * started before us will continue to see the old inheritance
3266  * behaviour, while queries started after we commit will see
3267  * new behaviour. No need to prevent reads or writes to the
3268  * subtable while we hook it up though. Changing the TupDesc
3269  * may be a problem, so keep highest lock.
3270  */
3271  case AT_AddInherit:
3272  case AT_DropInherit:
3273  cmd_lockmode = AccessExclusiveLock;
3274  break;
3275 
3276  /*
3277  * These subcommands affect implicit row type conversion. They
3278  * have affects similar to CREATE/DROP CAST on queries. don't
3279  * provide for invalidating parse trees as a result of such
3280  * changes, so we keep these at AccessExclusiveLock.
3281  */
3282  case AT_AddOf:
3283  case AT_DropOf:
3284  cmd_lockmode = AccessExclusiveLock;
3285  break;
3286 
3287  /*
3288  * Only used by CREATE OR REPLACE VIEW which must conflict
3289  * with an SELECTs currently using the view.
3290  */
3291  case AT_ReplaceRelOptions:
3292  cmd_lockmode = AccessExclusiveLock;
3293  break;
3294 
3295  /*
3296  * These subcommands affect general strategies for performance
3297  * and maintenance, though don't change the semantic results
3298  * from normal data reads and writes. Delaying an ALTER TABLE
3299  * behind currently active writes only delays the point where
3300  * the new strategy begins to take effect, so there is no
3301  * benefit in waiting. In this case the minimum restriction
3302  * applies: we don't currently allow concurrent catalog
3303  * updates.
3304  */
3305  case AT_SetStatistics: /* Uses MVCC in getTableAttrs() */
3306  case AT_ClusterOn: /* Uses MVCC in getIndexes() */
3307  case AT_DropCluster: /* Uses MVCC in getIndexes() */
3308  case AT_SetOptions: /* Uses MVCC in getTableAttrs() */
3309  case AT_ResetOptions: /* Uses MVCC in getTableAttrs() */
3310  cmd_lockmode = ShareUpdateExclusiveLock;
3311  break;
3312 
3313  case AT_SetLogged:
3314  case AT_SetUnLogged:
3315  cmd_lockmode = AccessExclusiveLock;
3316  break;
3317 
3318  case AT_ValidateConstraint: /* Uses MVCC in
3319  * getConstraints() */
3320  cmd_lockmode = ShareUpdateExclusiveLock;
3321  break;
3322 
3323  /*
3324  * Rel options are more complex than first appears. Options
3325  * are set here for tables, views and indexes; for historical
3326  * reasons these can all be used with ALTER TABLE, so we can't
3327  * decide between them using the basic grammar.
3328  */
3329  case AT_SetRelOptions: /* Uses MVCC in getIndexes() and
3330  * getTables() */
3331  case AT_ResetRelOptions: /* Uses MVCC in getIndexes() and
3332  * getTables() */
3333  cmd_lockmode = AlterTableGetRelOptionsLockLevel((List *) cmd->def);
3334  break;
3335 
3336  case AT_AttachPartition:
3337  case AT_DetachPartition:
3338  cmd_lockmode = AccessExclusiveLock;
3339  break;
3340 
3341  default: /* oops */
3342  elog(ERROR, "unrecognized alter table type: %d",
3343  (int) cmd->subtype);
3344  break;
3345  }
3346 
3347  /*
3348  * Take the greatest lockmode from any subcommand
3349  */
3350  if (cmd_lockmode > lockmode)
3351  lockmode = cmd_lockmode;
3352  }
3353 
3354  return lockmode;
3355 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:569
int LOCKMODE
Definition: lockdefs.h:26
AlterTableType subtype
Definition: parsenodes.h:1724
#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:1519
#define AccessExclusiveLock
Definition: lockdefs.h:46
ConstrType contype
Definition: parsenodes.h:2013
#define elog
Definition: elog.h:219
Definition: pg_list.h:45
void AlterTableInternal ( Oid  relid,
List cmds,
bool  recurse 
)

Definition at line 3073 of file tablecmds.c.

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

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

3074 {
3075  Relation rel;
3076  LOCKMODE lockmode = AlterTableGetLockLevel(cmds);
3077 
3078  rel = relation_open(relid, lockmode);
3079 
3081 
3082  ATController(NULL, rel, cmds, recurse, lockmode);
3083 }
int LOCKMODE
Definition: lockdefs.h:26
static void ATController(AlterTableStmt *parsetree, Relation rel, List *cmds, bool recurse, LOCKMODE lockmode)
Definition: tablecmds.c:3364
LOCKMODE AlterTableGetLockLevel(List *cmds)
Definition: tablecmds.c:3118
#define NULL
Definition: c.h:229
void EventTriggerAlterTableRelid(Oid objectId)
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1117
Oid AlterTableLookupRelation ( AlterTableStmt stmt,
LOCKMODE  lockmode 
)

Definition at line 2999 of file tablecmds.c.

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

Referenced by ProcessUtilitySlow().

3000 {
3001  return RangeVarGetRelidExtended(stmt->relation, lockmode, stmt->missing_ok, false,
3003  (void *) stmt);
3004 }
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:12671
RangeVar * relation
Definition: parsenodes.h:1640
Oid AlterTableMoveAll ( AlterTableMoveAllStmt stmt)

Definition at line 10294 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().

10295 {
10296  List *relations = NIL;
10297  ListCell *l;
10298  ScanKeyData key[1];
10299  Relation rel;
10300  HeapScanDesc scan;
10301  HeapTuple tuple;
10302  Oid orig_tablespaceoid;
10303  Oid new_tablespaceoid;
10304  List *role_oids = roleSpecsToIds(stmt->roles);
10305 
10306  /* Ensure we were not asked to move something we can't */
10307  if (stmt->objtype != OBJECT_TABLE && stmt->objtype != OBJECT_INDEX &&
10308  stmt->objtype != OBJECT_MATVIEW)
10309  ereport(ERROR,
10310  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
10311  errmsg("only tables, indexes, and materialized views exist in tablespaces")));
10312 
10313  /* Get the orig and new tablespace OIDs */
10314  orig_tablespaceoid = get_tablespace_oid(stmt->orig_tablespacename, false);
10315  new_tablespaceoid = get_tablespace_oid(stmt->new_tablespacename, false);
10316 
10317  /* Can't move shared relations in to or out of pg_global */
10318  /* This is also checked by ATExecSetTableSpace, but nice to stop earlier */
10319  if (orig_tablespaceoid == GLOBALTABLESPACE_OID ||
10320  new_tablespaceoid == GLOBALTABLESPACE_OID)
10321  ereport(ERROR,
10322  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
10323  errmsg("cannot move relations in to or out of pg_global tablespace")));
10324 
10325  /*
10326  * Must have CREATE rights on the new tablespace, unless it is the
10327  * database default tablespace (which all users implicitly have CREATE
10328  * rights on).
10329  */
10330  if (OidIsValid(new_tablespaceoid) && new_tablespaceoid != MyDatabaseTableSpace)
10331  {
10332  AclResult aclresult;
10333 
10334  aclresult = pg_tablespace_aclcheck(new_tablespaceoid, GetUserId(),
10335  ACL_CREATE);
10336  if (aclresult != ACLCHECK_OK)
10338  get_tablespace_name(new_tablespaceoid));
10339  }
10340 
10341  /*
10342  * Now that the checks are done, check if we should set either to
10343  * InvalidOid because it is our database's default tablespace.
10344  */
10345  if (orig_tablespaceoid == MyDatabaseTableSpace)
10346  orig_tablespaceoid = InvalidOid;
10347 
10348  if (new_tablespaceoid == MyDatabaseTableSpace)
10349  new_tablespaceoid = InvalidOid;
10350 
10351  /* no-op */
10352  if (orig_tablespaceoid == new_tablespaceoid)
10353  return new_tablespaceoid;
10354 
10355  /*
10356  * Walk the list of objects in the tablespace and move them. This will
10357  * only find objects in our database, of course.
10358  */
10359  ScanKeyInit(&key[0],
10361  BTEqualStrategyNumber, F_OIDEQ,
10362  ObjectIdGetDatum(orig_tablespaceoid));
10363 
10365  scan = heap_beginscan_catalog(rel, 1, key);
10366  while ((tuple = heap_getnext(scan, ForwardScanDirection)) != NULL)
10367  {
10368  Oid relOid = HeapTupleGetOid(tuple);
10369  Form_pg_class relForm;
10370 
10371  relForm = (Form_pg_class) GETSTRUCT(tuple);
10372 
10373  /*
10374  * Do not move objects in pg_catalog as part of this, if an admin
10375  * really wishes to do so, they can issue the individual ALTER
10376  * commands directly.
10377  *
10378  * Also, explicitly avoid any shared tables, temp tables, or TOAST
10379  * (TOAST will be moved with the main table).
10380  */
10381  if (IsSystemNamespace(relForm->relnamespace) || relForm->relisshared ||
10382  isAnyTempNamespace(relForm->relnamespace) ||
10383  relForm->relnamespace == PG_TOAST_NAMESPACE)
10384  continue;
10385 
10386  /* Only move the object type requested */
10387  if ((stmt->objtype == OBJECT_TABLE &&
10388  relForm->relkind != RELKIND_RELATION &&
10389  relForm->relkind != RELKIND_PARTITIONED_TABLE) ||
10390  (stmt->objtype == OBJECT_INDEX &&
10391  relForm->relkind != RELKIND_INDEX) ||
10392  (stmt->objtype == OBJECT_MATVIEW &&
10393  relForm->relkind != RELKIND_MATVIEW))
10394  continue;
10395 
10396  /* Check if we are only moving objects owned by certain roles */
10397  if (role_oids != NIL && !list_member_oid(role_oids, relForm->relowner))
10398  continue;
10399 
10400  /*
10401  * Handle permissions-checking here since we are locking the tables
10402  * and also to avoid doing a bunch of work only to fail part-way. Note
10403  * that permissions will also be checked by AlterTableInternal().
10404  *
10405  * Caller must be considered an owner on the table to move it.
10406  */
10407  if (!pg_class_ownercheck(relOid, GetUserId()))
10409  NameStr(relForm->relname));
10410 
10411  if (stmt->nowait &&
10413  ereport(ERROR,
10414  (errcode(ERRCODE_OBJECT_IN_USE),
10415  errmsg("aborting because lock on relation \"%s.%s\" is not available",
10416  get_namespace_name(relForm->relnamespace),
10417  NameStr(relForm->relname))));
10418  else
10420 
10421  /* Add to our list of objects to move */
10422  relations = lappend_oid(relations, relOid);
10423  }
10424 
10425  heap_endscan(scan);
10427 
10428  if (relations == NIL)
10429  ereport(NOTICE,
10430  (errcode(ERRCODE_NO_DATA_FOUND),
10431  errmsg("no matching relations in tablespace \"%s\" found",
10432  orig_tablespaceoid == InvalidOid ? "(database default)" :
10433  get_tablespace_name(orig_tablespaceoid))));
10434 
10435  /* Everything is locked, loop through and move all of the relations. */
10436  foreach(l, relations)
10437  {
10438  List *cmds = NIL;
10440 
10441  cmd->subtype = AT_SetTableSpace;
10442  cmd->name = stmt->new_tablespacename;
10443 
10444  cmds = lappend(cmds, cmd);
10445 
10447  /* OID is set by AlterTableInternal */
10448  AlterTableInternal(lfirst_oid(l), cmds, false);
10450  }
10451 
10452  return new_tablespaceoid;
10453 }
#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:4470
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
void heap_endscan(HeapScanDesc scan)
Definition: heapam.c:1581
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:518
int errcode(int sqlerrcode)
Definition: elog.c:575
AlterTableType subtype
Definition: parsenodes.h:1724
#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:75
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3006
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3377
HeapScanDesc heap_beginscan_catalog(Relation relation, int nkeys, ScanKey key)
Definition: heapam.c:1402
#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:1797
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
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:566
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:4520
FormData_pg_class * Form_pg_class
Definition: pg_class.h:95
void AlterTableInternal(Oid relid, List *cmds, bool recurse)
Definition: tablecmds.c:3073
#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:2990
#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 12086 of file tablecmds.c.

References AccessExclusiveLock, AlterTableNamespaceInternal(), CheckSetNamespace(), 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().

12087 {
12088  Relation rel;
12089  Oid relid;
12090  Oid oldNspOid;
12091  Oid nspOid;
12092  RangeVar *newrv;
12093  ObjectAddresses *objsMoved;
12094  ObjectAddress myself;
12095 
12097  stmt->missing_ok, false,
12099  (void *) stmt);
12100 
12101  if (!OidIsValid(relid))
12102  {
12103  ereport(NOTICE,
12104  (errmsg("relation \"%s\" does not exist, skipping",
12105  stmt->relation->relname)));
12106  return InvalidObjectAddress;
12107  }
12108 
12109  rel = relation_open(relid, NoLock);
12110 
12111  oldNspOid = RelationGetNamespace(rel);
12112 
12113  /* If it's an owned sequence, disallow moving it by itself. */
12114  if (rel->rd_rel->relkind == RELKIND_SEQUENCE)
12115  {
12116  Oid tableId;
12117  int32 colId;
12118 
12119  if (sequenceIsOwned(relid, &tableId, &colId))
12120  ereport(ERROR,
12121  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
12122  errmsg("cannot move an owned sequence into another schema"),
12123  errdetail("Sequence \"%s\" is linked to table \"%s\".",
12125  get_rel_name(tableId))));
12126  }
12127 
12128  /* Get and lock schema OID and check its permissions. */
12129  newrv = makeRangeVar(stmt->newschema, RelationGetRelationName(rel), -1);
12131 
12132  /* common checks on switching namespaces */
12133  CheckSetNamespace(oldNspOid, nspOid);
12134 
12135  objsMoved = new_object_addresses();
12136  AlterTableNamespaceInternal(rel, oldNspOid, nspOid, objsMoved);
12137  free_object_addresses(objsMoved);
12138 
12139  ObjectAddressSet(myself, RelationRelationId, relid);
12140 
12141  if (oldschema)
12142  *oldschema = oldNspOid;
12143 
12144  /* close rel, but keep lock until commit */
12145  relation_close(rel, NoLock);
12146 
12147  return myself;
12148 }
bool sequenceIsOwned(Oid seqId, 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:1263
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2026
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2297
Form_pg_class rd_rel
Definition: rel.h:113
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:12156
#define NoLock
Definition: lockdefs.h:34
static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:12671
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:433
#define ereport(elevel, rest)
Definition: elog.h:122
void CheckSetNamespace(Oid oldNspOid, Oid nspOid)
Definition: namespace.c:2762
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:1117
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
char * get_rel_name(Oid relid)
Definition: lsyscache.c:1694
RangeVar * makeRangeVar(char *schemaname, char *relname, int location)
Definition: makefuncs.c:419
#define RelationGetNamespace(relation)
Definition: rel.h:440
void AlterTableNamespaceInternal ( Relation  rel,
Oid  oldNspOid,
Oid  nspOid,
ObjectAddresses objsMoved 
)

Definition at line 12156 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().

12158 {
12159  Relation classRel;
12160 
12161  Assert(objsMoved != NULL);
12162 
12163  /* OK, modify the pg_class row and pg_depend entry */
12165 
12166  AlterRelationNamespaceInternal(classRel, RelationGetRelid(rel), oldNspOid,
12167  nspOid, true, objsMoved);
12168 
12169  /* Fix the table's row type too */
12170  AlterTypeNamespaceInternal(rel->rd_rel->reltype,
12171  nspOid, false, false, objsMoved);
12172 
12173  /* Fix other dependent stuff */
12174  if (rel->rd_rel->relkind == RELKIND_RELATION ||
12175  rel->rd_rel->relkind == RELKIND_MATVIEW ||
12176  rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
12177  {
12178  AlterIndexNamespaces(classRel, rel, oldNspOid, nspOid, objsMoved);
12179  AlterSeqNamespaces(classRel, rel, oldNspOid, nspOid,
12180  objsMoved, AccessExclusiveLock);
12181  AlterConstraintNamespaces(RelationGetRelid(rel), oldNspOid, nspOid,
12182  false, objsMoved);
12183  }
12184 
12185  heap_close(classRel, RowExclusiveLock);
12186 }
#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:113
static void AlterIndexNamespaces(Relation classRel, Relation rel, Oid oldNspOid, Oid newNspOid, ObjectAddresses *objsMoved)
Definition: tablecmds.c:12264
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:12309
#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:1287
#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:12194
#define AccessExclusiveLock
Definition: lockdefs.h:46
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RelationGetRelid(relation)
Definition: rel.h:413
void AtEOSubXact_on_commit_actions ( bool  isCommit,
SubTransactionId  mySubid,
SubTransactionId  parentSubid 
)

Definition at line 12561 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().

12563 {
12564  ListCell *cur_item;
12565  ListCell *prev_item;
12566 
12567  prev_item = NULL;
12568  cur_item = list_head(on_commits);
12569 
12570  while (cur_item != NULL)
12571  {
12572  OnCommitItem *oc = (OnCommitItem *) lfirst(cur_item);
12573 
12574  if (!isCommit && oc->creating_subid == mySubid)
12575  {
12576  /* cur_item must be removed */
12577  on_commits = list_delete_cell(on_commits, cur_item, prev_item);
12578  pfree(oc);
12579  if (prev_item)
12580  cur_item = lnext(prev_item);
12581  else
12582  cur_item = list_head(on_commits);
12583  }
12584  else
12585  {
12586  /* cur_item must be preserved */
12587  if (oc->creating_subid == mySubid)
12588  oc->creating_subid = parentSubid;
12589  if (oc->deleting_subid == mySubid)
12590  oc->deleting_subid = isCommit ? parentSubid : InvalidSubTransactionId;
12591  prev_item = cur_item;
12592  cur_item = lnext(prev_item);
12593  }
12594  }
12595 }
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 12519 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().

12520 {
12521  ListCell *cur_item;
12522  ListCell *prev_item;
12523 
12524  prev_item = NULL;
12525  cur_item = list_head(on_commits);
12526 
12527  while (cur_item != NULL)
12528  {
12529  OnCommitItem *oc = (OnCommitItem *) lfirst(cur_item);
12530 
12531  if (isCommit ? oc->deleting_subid != InvalidSubTransactionId :
12533  {
12534  /* cur_item must be removed */
12535  on_commits = list_delete_cell(on_commits, cur_item, prev_item);
12536  pfree(oc);
12537  if (prev_item)
12538  cur_item = lnext(prev_item);
12539  else
12540  cur_item = list_head(on_commits);
12541  }
12542  else
12543  {
12544  /* cur_item must be preserved */
12547  prev_item = cur_item;
12548  cur_item = lnext(prev_item);
12549  }
12550  }
12551 }
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 9484 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, 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().

9485 {
9486  Relation target_rel;
9487  Relation class_rel;
9488  HeapTuple tuple;
9489  Form_pg_class tuple_class;
9490 
9491  /*
9492  * Get exclusive lock till end of transaction on the target table. Use
9493  * relation_open so that we can work on indexes and sequences.
9494  */
9495  target_rel = relation_open(relationOid, lockmode);
9496 
9497  /* Get its pg_class tuple, too */
9499 
9500  tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relationOid));
9501  if (!HeapTupleIsValid(tuple))
9502  elog(ERROR, "cache lookup failed for relation %u", relationOid);
9503  tuple_class = (Form_pg_class) GETSTRUCT(tuple);
9504 
9505  /* Can we change the ownership of this tuple? */
9506  switch (tuple_class->relkind)
9507  {
9508  case RELKIND_RELATION:
9509  case RELKIND_VIEW:
9510  case RELKIND_MATVIEW:
9511  case RELKIND_FOREIGN_TABLE:
9513  /* ok to change owner */
9514  break;
9515  case RELKIND_INDEX:
9516  if (!recursing)
9517  {
9518  /*
9519  * Because ALTER INDEX OWNER used to be allowed, and in fact
9520  * is generated by old versions of pg_dump, we give a warning
9521  * and do nothing rather than erroring out. Also, to avoid
9522  * unnecessary chatter while restoring those old dumps, say
9523  * nothing at all if the command would be a no-op anyway.
9524  */
9525  if (tuple_class->relowner != newOwnerId)
9526  ereport(WARNING,
9527  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9528  errmsg("cannot change owner of index \"%s\"",
9529  NameStr(tuple_class->relname)),
9530  errhint("Change the ownership of the index's table, instead.")));
9531  /* quick hack to exit via the no-op path */
9532  newOwnerId = tuple_class->relowner;
9533  }
9534  break;
9535  case RELKIND_SEQUENCE:
9536  if (!recursing &&
9537  tuple_class->relowner != newOwnerId)
9538  {
9539  /* if it's an owned sequence, disallow changing it by itself */
9540  Oid tableId;
9541  int32 colId;
9542 
9543  if (sequenceIsOwned(relationOid, &tableId, &colId))
9544  ereport(ERROR,
9545  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
9546  errmsg("cannot change owner of sequence \"%s\"",
9547  NameStr(tuple_class->relname)),
9548  errdetail("Sequence \"%s\" is linked to table \"%s\".",
9549  NameStr(tuple_class->relname),
9550  get_rel_name(tableId))));
9551  }
9552  break;
9554  if (recursing)
9555  break;
9556  ereport(ERROR,
9557  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9558  errmsg("\"%s\" is a composite type",
9559  NameStr(tuple_class->relname)),
9560  errhint("Use ALTER TYPE instead.")));
9561  break;
9562  case RELKIND_TOASTVALUE:
9563  if (recursing)
9564  break;
9565  /* FALL THRU */
9566  default:
9567  ereport(ERROR,
9568  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
9569  errmsg("\"%s\" is not a table, view, sequence, or foreign table",
9570  NameStr(tuple_class->relname))));
9571  }
9572 
9573  /*
9574  * If the new owner is the same as the existing owner, consider the
9575  * command to have succeeded. This is for dump restoration purposes.
9576  */
9577  if (tuple_class->relowner != newOwnerId)
9578  {
9579  Datum repl_val[Natts_pg_class];
9580  bool repl_null[Natts_pg_class];
9581  bool repl_repl[Natts_pg_class];
9582  Acl *newAcl;
9583  Datum aclDatum;
9584  bool isNull;
9585  HeapTuple newtuple;
9586 
9587  /* skip permission checks when recursing to index or toast table */
9588  if (!recursing)
9589  {
9590  /* Superusers can always do it */
9591  if (!superuser())
9592  {
9593  Oid namespaceOid = tuple_class->relnamespace;
9594  AclResult aclresult;
9595 
9596  /* Otherwise, must be owner of the existing object */
9597  if (!pg_class_ownercheck(relationOid, GetUserId()))
9599  RelationGetRelationName(target_rel));
9600 
9601  /* Must be able to become new owner */
9602  check_is_member_of_role(GetUserId(), newOwnerId);
9603 
9604  /* New owner must have CREATE privilege on namespace */
9605  aclresult = pg_namespace_aclcheck(namespaceOid, newOwnerId,
9606  ACL_CREATE);
9607  if (aclresult != ACLCHECK_OK)
9609  get_namespace_name(namespaceOid));
9610  }
9611  }
9612 
9613  memset(repl_null, false, sizeof(repl_null));
9614  memset(repl_repl, false, sizeof(repl_repl));
9615 
9616  repl_repl[Anum_pg_class_relowner - 1] = true;
9617  repl_val[Anum_pg_class_relowner - 1] = ObjectIdGetDatum(newOwnerId);
9618 
9619  /*
9620  * Determine the modified ACL for the new owner. This is only
9621  * necessary when the ACL is non-null.
9622  */
9623  aclDatum = SysCacheGetAttr(RELOID, tuple,
9625  &isNull);
9626  if (!isNull)
9627  {
9628  newAcl = aclnewowner(DatumGetAclP(aclDatum),
9629  tuple_class->relowner, newOwnerId);
9630  repl_repl[Anum_pg_class_relacl - 1] = true;
9631  repl_val[Anum_pg_class_relacl - 1] = PointerGetDatum(newAcl);
9632  }
9633 
9634  newtuple = heap_modify_tuple(tuple, RelationGetDescr(class_rel), repl_val, repl_null, repl_repl);
9635 
9636  CatalogTupleUpdate(class_rel, &newtuple->t_self, newtuple);
9637 
9638  heap_freetuple(newtuple);
9639 
9640  /*
9641  * We must similarly update any per-column ACLs to reflect the new
9642  * owner; for neatness reasons that's split out as a subroutine.
9643  */
9644  change_owner_fix_column_acls(relationOid,
9645  tuple_class->relowner,
9646  newOwnerId);
9647 
9648  /*
9649  * Update owner dependency reference, if any. A composite type has
9650  * none, because it's tracked for the pg_type entry instead of here;
9651  * indexes and TOAST tables don't have their own entries either.
9652  */
9653  if (tuple_class->relkind != RELKIND_COMPOSITE_TYPE &&
9654  tuple_class->relkind != RELKIND_INDEX &&
9655  tuple_class->relkind != RELKIND_TOASTVALUE)
9657  newOwnerId);
9658 
9659  /*
9660  * Also change the ownership of the table's row type, if it has one
9661  */
9662  if (tuple_class->relkind != RELKIND_INDEX)
9663  AlterTypeOwnerInternal(tuple_class->reltype, newOwnerId);
9664 
9665  /*
9666  * If we are operating on a table or materialized view, also change
9667  * the ownership of any indexes and sequences that belong to the
9668  * relation, as well as its toast table (if it has one).
9669  */
9670  if (tuple_class->relkind == RELKIND_RELATION ||
9671  tuple_class->relkind == RELKIND_MATVIEW ||
9672  tuple_class->relkind == RELKIND_TOASTVALUE)
9673  {
9674  List *index_oid_list;
9675  ListCell *i;
9676 
9677  /* Find all the indexes belonging to this relation */
9678  index_oid_list = RelationGetIndexList(target_rel);
9679 
9680  /* For each index, recursively change its ownership */
9681  foreach(i, index_oid_list)
9682  ATExecChangeOwner(lfirst_oid(i), newOwnerId, true, lockmode);
9683 
9684  list_free(index_oid_list);
9685  }
9686 
9687  if (tuple_class->relkind == RELKIND_RELATION ||
9688  tuple_class->relkind == RELKIND_MATVIEW)
9689  {
9690  /* If it has a toast table, recurse to change its ownership */
9691  if (tuple_class->reltoastrelid != InvalidOid)
9692  ATExecChangeOwner(tuple_class->reltoastrelid, newOwnerId,
9693  true, lockmode);
9694 
9695  /* If it has dependent sequences, recurse to change them too */
9696  change_owner_recurse_to_sequences(relationOid, newOwnerId, lockmode);
9697  }
9698  }
9699 
9701 
9702  ReleaseSysCache(tuple);
9703  heap_close(class_rel, RowExclusiveLock);
9704  relation_close(target_rel, NoLock);
9705 }
#define Natts_pg_class
Definition: pg_class.h:102
bool sequenceIsOwned(Oid seqId, Oid *tableId, int32 *colId)
Definition: pg_depend.c:500
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
#define RelationGetDescr(relation)
Definition: rel.h:425
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:1263
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:4458
#define RELKIND_COMPOSITE_TYPE
Definition: pg_class.h:166
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:149
signed int int32
Definition: c.h:256
void changeDependencyOnOwner(Oid classId, Oid objectId, Oid newOwnerId)
Definition: pg_shdepend.c:303
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define ACL_CREATE
Definition: parsenodes.h:75
ItemPointerData t_self
Definition: htup.h:65
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3006
#define NoLock
Definition: lockdefs.h:34
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3377
#define RowExclusiveLock
Definition: lockdefs.h:38
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:433
#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:9484
#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:1081
Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull)
Definition: syscache.c:1243
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
#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:4520
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:9779
List * RelationGetIndexList(Relation relation)
Definition: relcache.c:4336
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:9714
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:1117
#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:1694
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 4962 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().

4963 {
4964  Form_pg_type typ = (Form_pg_type) GETSTRUCT(typetuple);
4965  bool typeOk = false;
4966 
4967  if (typ->typtype == TYPTYPE_COMPOSITE)
4968  {
4969  Relation typeRelation;
4970 
4971  Assert(OidIsValid(typ->typrelid));
4972  typeRelation = relation_open(typ->typrelid, AccessShareLock);
4973  typeOk = (typeRelation->rd_rel->relkind == RELKIND_COMPOSITE_TYPE);
4974 
4975  /*
4976  * Close the parent rel, but keep our AccessShareLock on it until xact
4977  * commit. That will prevent someone else from deleting or ALTERing
4978  * the type before the typed table creation/conversion commits.
4979  */
4980  relation_close(typeRelation, NoLock);
4981  }
4982  if (!typeOk)
4983  ereport(ERROR,
4984  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4985  errmsg("type %s is not a composite type",
4986  format_type_be(HeapTupleGetOid(typetuple)))));
4987 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
#define TYPTYPE_COMPOSITE
Definition: pg_type.h:713
#define AccessShareLock
Definition: lockdefs.h:36
int errcode(int sqlerrcode)
Definition: elog.c:575
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1263
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:113
#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:1117
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
void CheckTableNotInUse ( Relation  rel,
const char *  stmt 
)

Definition at line 2970 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().

2971 {
2972  int expected_refcnt;
2973 
2974  expected_refcnt = rel->rd_isnailed ? 2 : 1;
2975  if (rel->rd_refcnt != expected_refcnt)
2976  ereport(ERROR,
2977  (errcode(ERRCODE_OBJECT_IN_USE),
2978  /* translator: first %s is a SQL command, eg ALTER TABLE */
2979  errmsg("cannot %s \"%s\" because "
2980  "it is being used by active queries in this session",
2981  stmt, RelationGetRelationName(rel))));
2982 
2983  if (rel->rd_rel->relkind != RELKIND_INDEX &&
2985  ereport(ERROR,
2986  (errcode(ERRCODE_OBJECT_IN_USE),
2987  /* translator: first %s is a SQL command, eg ALTER TABLE */
2988  errmsg("cannot %s \"%s\" because "
2989  "it has pending trigger events",
2990  stmt, RelationGetRelationName(rel))));
2991 }
bool rd_isnailed
Definition: rel.h:91
int errcode(int sqlerrcode)
Definition: elog.c:575
Form_pg_class rd_rel
Definition: rel.h:113
#define ERROR
Definition: elog.h:43
#define RelationGetRelationName(relation)
Definition: rel.h:433
#define ereport(elevel, rest)
Definition: elog.h:122
bool AfterTriggerPendingOnRel(Oid relid)
Definition: trigger.c:5008
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:413
ObjectAddress DefineRelation ( CreateStmt stmt,
char  relkind,
Oid  ownerId,
ObjectAddress typaddress,
const char *  queryString 
)

Definition at line 483 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, 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().

485 {
486  char relname[NAMEDATALEN];
487  Oid namespaceId;
488  List *schema = stmt->tableElts;
489  Oid relationId;
490  Oid tablespaceId;
491  Relation rel;
493  List *inheritOids;
494  List *old_constraints;
495  bool localHasOids;
496  int parentOidCount;
497  List *rawDefaults;
498  List *cookedDefaults;
499  Datum reloptions;
500  ListCell *listptr;
501  AttrNumber attnum;
502  static char *validnsps[] = HEAP_RELOPT_NAMESPACES;
503  Oid ofTypeId;
504  ObjectAddress address;
505 
506  /*
507  * Truncate relname to appropriate length (probably a waste of time, as
508  * parser should have done this already).
509  */
510  StrNCpy(relname, stmt->relation->relname, NAMEDATALEN);
511 
512  /*
513  * Check consistency of arguments
514  */
515  if (stmt->oncommit != ONCOMMIT_NOOP
517  ereport(ERROR,
518  (errcode(ERRCODE_INVALID_TABLE_DEFINITION),
519  errmsg("ON COMMIT can only be used on temporary tables")));
520 
521  if (stmt->partspec != NULL)
522  {
523  if (relkind != RELKIND_RELATION)
524  elog(ERROR, "unexpected relkind: %d", (int) relkind);
525 
526  relkind = RELKIND_PARTITIONED_TABLE;
527  }
528 
529  /*
530  * Look up the namespace in which we are supposed to create the relation,
531  * check we have permission to create there, lock it against concurrent
532  * drop, and mark stmt->relation as RELPERSISTENCE_TEMP if a temporary
533  * namespace is selected.
534  */
535  namespaceId =
537 
538  /*
539  * Security check: disallow creating temp tables from security-restricted
540  * code. This is needed because calling code might not expect untrusted
541  * tables to appear in pg_temp at the front of its search path.
542  */
545  ereport(ERROR,
546  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
547  errmsg("cannot create temporary table within security-restricted operation")));
548 
549  /*
550  * Select tablespace to use. If not specified, use default tablespace
551  * (which may in turn default to database's default).
552  */
553  if (stmt->tablespacename)
554  {
555  tablespaceId = get_tablespace_oid(stmt->tablespacename, false);
556  }
557  else
558  {
559  tablespaceId = GetDefaultTablespace(stmt->relation->relpersistence);
560  /* note InvalidOid is OK in this case */
561  }
562 
563  /* Check permissions except when using database's default */
564  if (OidIsValid(tablespaceId) && tablespaceId != MyDatabaseTableSpace)
565  {
566  AclResult aclresult;
567 
568  aclresult = pg_tablespace_aclcheck(tablespaceId, GetUserId(),
569  ACL_CREATE);
570  if (aclresult != ACLCHECK_OK)
572  get_tablespace_name(tablespaceId));
573  }
574 
575  /* In all cases disallow placing user relations in pg_global */
576  if (tablespaceId == GLOBALTABLESPACE_OID)
577  ereport(ERROR,
578  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
579  errmsg("only shared relations can be placed in pg_global tablespace")));
580 
581  /* Identify user ID that will own the table */
582  if (!OidIsValid(ownerId))
583  ownerId = GetUserId();
584 
585  /*
586  * Parse and validate reloptions, if any.
587  */
588  reloptions = transformRelOptions((Datum) 0, stmt->options, NULL, validnsps,
589  true, false);
590 
591  if (relkind == RELKIND_VIEW)
592  (void) view_reloptions(reloptions, true);
593  else
594  (void) heap_reloptions(relkind, reloptions, true);
595 
596  if (stmt->ofTypename)
597  {
598  AclResult aclresult;
599 
600  ofTypeId = typenameTypeId(NULL, stmt->ofTypename);
601 
602  aclresult = pg_type_aclcheck(ofTypeId, GetUserId(), ACL_USAGE);
603  if (aclresult != ACLCHECK_OK)
604  aclcheck_error_type(aclresult, ofTypeId);
605  }
606  else
607  ofTypeId = InvalidOid;
608 
609  /*
610  * Look up inheritance ancestors and generate relation schema, including
611  * inherited attributes.
612  */
613  schema = MergeAttributes(schema, stmt->inhRelations,
614  stmt->relation->relpersistence,
615  stmt->partbound != NULL,
616  &inheritOids, &old_constraints, &parentOidCount);
617 
618  /*
619  * Create a tuple descriptor from the relation schema. Note that this
620  * deals with column names, types, and NOT NULL constraints, but not
621  * default values or CHECK constraints; we handle those below.
622  */
623  descriptor = BuildDescForRelation(schema);
624 
625  /*
626  * Notice that we allow OIDs here only for plain tables and partitioned
627  * tables, even though some other relkinds can support them. This is
628  * necessary because the default_with_oids GUC must apply only to plain
629  * tables and not any other relkind; doing otherwise would break existing
630  * pg_dump files. We could allow explicit "WITH OIDS" while not allowing
631  * default_with_oids to affect other relkinds, but it would complicate
632  * interpretOidsOption().
633  */
634  localHasOids = interpretOidsOption(stmt->options,
635  (relkind == RELKIND_RELATION ||
636  relkind == RELKIND_PARTITIONED_TABLE));
637  descriptor->tdhasoid = (localHasOids || parentOidCount > 0);
638 
639  /*
640  * If a partitioned table doesn't have the system OID column, then none
641  * of its partitions should have it.
642  */
643  if (stmt->partbound && parentOidCount == 0 && localHasOids)
644  ereport(ERROR,
645  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
646  errmsg("cannot create table with OIDs as partition of table without OIDs")));
647 
648  /*
649  * Find columns with default values and prepare for insertion of the
650  * defaults. Pre-cooked (that is, inherited) defaults go into a list of
651  * CookedConstraint structs that we'll pass to heap_create_with_catalog,
652  * while raw defaults go into a list of RawColumnDefault structs that will
653  * be processed by AddRelationNewConstraints. (We can't deal with raw
654  * expressions until we can do transformExpr.)
655  *
656  * We can set the atthasdef flags now in the tuple descriptor; this just
657  * saves StoreAttrDefault from having to do an immediate update of the
658  * pg_attribute rows.
659  */
660  rawDefaults = NIL;
661  cookedDefaults = NIL;
662  attnum = 0;
663 
664  foreach(listptr, schema)
665  {
666  ColumnDef *colDef = lfirst(listptr);
667 
668  attnum++;
669 
670  if (colDef->raw_default != NULL)
671  {
672  RawColumnDefault *rawEnt;
673 
674  Assert(colDef->cooked_default == NULL);
675 
676  rawEnt = (RawColumnDefault *) palloc(sizeof(RawColumnDefault));
677  rawEnt->attnum = attnum;
678  rawEnt->raw_default = colDef->raw_default;
679  rawDefaults = lappend(rawDefaults, rawEnt);
680  descriptor->attrs[attnum - 1]->atthasdef = true;
681  }
682  else if (colDef->cooked_default != NULL)
683  {
684  CookedConstraint *cooked;
685 
686  cooked = (CookedConstraint *) palloc(sizeof(CookedConstraint));
687  cooked->contype = CONSTR_DEFAULT;
688  cooked->conoid = InvalidOid; /* until created */
689  cooked->name = NULL;
690  cooked->attnum = attnum;
691  cooked->expr = colDef->cooked_default;
692  cooked->skip_validation = false;
693  cooked->is_local = true; /* not used for defaults */
694  cooked->inhcount = 0; /* ditto */
695  cooked->is_no_inherit = false;
696  cookedDefaults = lappend(cookedDefaults, cooked);
697  descriptor->attrs[attnum - 1]->atthasdef = true;
698  }
699  }
700 
701  /*
702  * Create the relation. Inherited defaults and constraints are passed in
703  * for immediate handling --- since they don't need parsing, they can be
704  * stored immediately.
705  */
706  relationId = heap_create_with_catalog(relname,
707  namespaceId,
708  tablespaceId,
709  InvalidOid,
710  InvalidOid,
711  ofTypeId,
712  ownerId,
713  descriptor,
714  list_concat(cookedDefaults,
715  old_constraints),
716  relkind,
717  stmt->relation->relpersistence,
718  false,
719  false,
720  localHasOids,
721  parentOidCount,
722  stmt->oncommit,
723  reloptions,
724  true,
726  false,
727  typaddress);
728 
729  /* Store inheritance information for new rel. */
730  StoreCatalogInheritance(relationId, inheritOids, stmt->partbound != NULL);
731 
732  /*
733  * We must bump the command counter to make the newly-created relation
734  * tuple visible for opening.
735  */
737 
738  /*
739  * Open the new relation and acquire exclusive lock on it. This isn't
740  * really necessary for locking out other backends (since they can't see
741  * the new rel anyway until we commit), but it keeps the lock manager from
742  * complaining about deadlock risks.
743  */
744  rel = relation_open(relationId, AccessExclusiveLock);
745 
746  /* Process and store partition bound, if any. */
747  if (stmt->partbound)
748  {
749  Node *bound;
750  ParseState *pstate;
751  Oid parentId = linitial_oid(inheritOids);
752  Relation parent;
753 
754  /* Already have strong enough lock on the parent */
755  parent = heap_open(parentId, NoLock);
756 
757  /*
758  * We are going to try to validate the partition bound specification
759  * against the partition key of parentRel, so it better have one.
760  */
761  if (parent->rd_rel->relkind != RELKIND_PARTITIONED_TABLE)
762  ereport(ERROR,
763  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
764  errmsg("\"%s\" is not partitioned",
765  RelationGetRelationName(parent))));
766 
767  /* Tranform the bound values */
768  pstate = make_parsestate(NULL);
769  pstate->p_sourcetext = queryString;
770  bound = transformPartitionBound(pstate, parent, stmt->partbound);
771 
772  /*
773  * Check first that the new partition's bound is valid and does not
774  * overlap with any of existing partitions of the parent - note that
775  * it does not return on error.
776  */
777  check_new_partition_bound(relname, parent, bound);
778 
779  /* Update the pg_class entry. */
780  StorePartitionBound(rel, parent, bound);
781 
782  heap_close(parent, NoLock);
783 
784  /*
785  * The code that follows may also update the pg_class tuple to update
786  * relnumchecks, so bump up the command counter to avoid the "already
787  * updated by self" error.
788  */
790  }
791 
792  /*
793  * Process the partitioning specification (if any) and store the partition
794  * key information into the catalog.
795  */
796  if (stmt->partspec)
797  {
798  char strategy;
799  int partnatts,
800  i;
801  AttrNumber partattrs[PARTITION_MAX_KEYS];
802  Oid partopclass[PARTITION_MAX_KEYS];
803  Oid partcollation[PARTITION_MAX_KEYS];
804  List *partexprs = NIL;
805  List *cmds = NIL;
806 
807  /*
808  * We need to transform the raw parsetrees corresponding to partition
809  * expressions into executable expression trees. Like column defaults
810  * and CHECK constraints, we could not have done the transformation
811  * earlier.
812  */
813  stmt->partspec = transformPartitionSpec(rel, stmt->partspec,
814  &strategy);
816  partattrs, &partexprs, partopclass,
817  partcollation);
818 
819  partnatts = list_length(stmt->partspec->partParams);
820  StorePartitionKey(rel, strategy, partnatts, partattrs, partexprs,
821  partopclass, partcollation);
822 
823  /* Force key columns to be NOT NULL when using range partitioning */
824  if (strategy == PARTITION_STRATEGY_RANGE)
825  {
826  for (i = 0; i < partnatts; i++)
827  {
828  AttrNumber partattno = partattrs[i];
829  Form_pg_attribute attform = descriptor->attrs[partattno - 1];
830 
831  if (partattno != 0 && !attform->attnotnull)
832  {
833  /* Add a subcommand to make this one NOT NULL */
835 
836  cmd->subtype = AT_SetNotNull;
837  cmd->name = pstrdup(NameStr(attform->attname));
838  cmds = lappend(cmds, cmd);
839  }
840  }
841 
842  /*
843  * Although, there cannot be any partitions yet, we still need to
844  * pass true for recurse; ATPrepSetNotNull() complains if we don't
845  */
846  if (cmds != NIL)
847  AlterTableInternal(RelationGetRelid(rel), cmds, true);
848  }
849  }
850 
851  /*
852  * Now add any newly specified column default values and CHECK constraints
853  * to the new relation. These are passed to us in the form of raw
854  * parsetrees; we need to transform them to executable expression trees
855  * before they can be added. The most convenient way to do that is to
856  * apply the parser's transformExpr routine, but transformExpr doesn't
857  * work unless we have a pre-existing relation. So, the transformation has
858  * to be postponed to this final step of CREATE TABLE.
859  */
860  if (rawDefaults || stmt->constraints)
861  AddRelationNewConstraints(rel, rawDefaults, stmt->constraints,
862  true, true, false);
863 
864  ObjectAddressSet(address, RelationRelationId, relationId);
865 
866  /*
867  * Clean up. We keep lock on new relation (although it shouldn't be
868  * visible to anyone else anyway, until commit).
869  */
870  relation_close(rel, NoLock);
871 
872  return address;
873 }
RangeVar * relation
Definition: parsenodes.h:1936
bytea * heap_reloptions(char relkind, Datum reloptions, bool validate)
Definition: reloptions.c:1402
#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:1945
List * inhRelations
Definition: parsenodes.h:1938
AclResult pg_tablespace_aclcheck(Oid spc_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4470
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:3071
AttrNumber attnum
Definition: heap.h:24
List * partParams
Definition: parsenodes.h:765
Oid GetUserId(void)
Definition: miscinit.c:283
Node * transformPartitionBound(ParseState *pstate, Relation parent, Node *bound)
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:518
int errcode(int sqlerrcode)
Definition: elog.c:575
#define PARTITION_MAX_KEYS
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1263
AlterTableType subtype
Definition: parsenodes.h:1724
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:113
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:2253
Oid GetDefaultTablespace(char relpersistence)
Definition: tablespace.c:1111
static PartitionSpec * transformPartitionSpec(Relation rel, PartitionSpec *partspec, char *strategy)
Definition: tablecmds.c:12795
void aclcheck_error_type(AclResult aclerr, Oid typeOid)
Definition: aclchk.c:3435
Oid MyDatabaseTableSpace
Definition: globals.c:78
static void ComputePartitionAttrs(Relation rel, List *partParams, AttrNumber *partattrs, List **partexprs, Oid *partopclass, Oid *partcollation)
Definition: tablecmds.c:12867
ParseState * make_parsestate(ParseState *parentParseState)
Definition: parse_node.c:44
bytea * view_reloptions(Datum reloptions, bool validate)
Definition: reloptions.c:1370
List * constraints
Definition: parsenodes.h:1943
#define NAMEDATALEN
Node * cooked_default
Definition: parsenodes.h:639
char * relname
Definition: primnodes.h:68
AttrNumber attnum
Definition: heap.h:33
#define ERROR
Definition: elog.h:43
#define ACL_CREATE
Definition: parsenodes.h:75
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:3377
void check_new_partition_bound(char *relname, Relation parent, Node *bound)
Definition: partition.c:669
#define RelationGetRelationName(relation)
Definition: rel.h:433
List * options
Definition: parsenodes.h:1944
Node * raw_default
Definition: heap.h:25
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:184
#define ACL_USAGE
Definition: parsenodes.h:73
bool skip_validation
Definition: heap.h:35
#define HEAP_RELOPT_NAMESPACES
Definition: reloptions.h:58
const char * p_sourcetext
Definition: parse_node.h:167
ConstrType contype
Definition: heap.h:30
#define ereport(elevel, rest)
Definition: elog.h:122
Node * raw_default
Definition: parsenodes.h:638
List * lappend(List *list, void *datum)
Definition: list.c:128
char * tablespacename
Definition: parsenodes.h:1946
void StorePartitionBound(Relation rel, Relation parent, Node *bound)
Definition: heap.c:3207
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:1287
Node * partbound
Definition: parsenodes.h:1940
Datum transformRelOptions(Datum oldOptions, List *defList, char *namspace, char *validnsps[], bool ignoreOids, bool isReset)
Definition: reloptions.c:736
bool allowSystemTableMods
Definition: globals.c:111
#define InvalidOid
Definition: postgres_ext.h:36
List * tableElts
Definition: parsenodes.h:1937
#define makeNode(_type_)
Definition: nodes.h:566
#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:112
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:244
static List * MergeAttributes(List *schema, List *supers, char relpersistence, bool is_partition, List **supOids, List **supconstr, int *supOidCount)
Definition: tablecmds.c:1591
#define PARTITION_STRATEGY_RANGE
Definition: parsenodes.h:770
void AlterTableInternal(Oid relid, List *cmds, bool recurse)
Definition: tablecmds.c:3073
#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:1015
Oid conoid
Definition: heap.h:31
#define NameStr(name)
Definition: c.h:499
Relation relation_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1117
Node * expr
Definition: heap.h:34
#define elog
Definition: elog.h:219
TupleDesc BuildDescForRelation(List *schema)
Definition: tupdesc.c:675
#define RELPERSISTENCE_TEMP
Definition: pg_class.h:172
AclResult pg_type_aclcheck(Oid type_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4508
#define RELKIND_RELATION
Definition: pg_class.h:160
PartitionSpec * partspec
Definition: parsenodes.h:1941
Definition: pg_list.h:45
int16 AttrNumber
Definition: attnum.h:21
char * name
Definition: heap.h:32
#define RelationGetRelid(relation)
Definition: rel.h:413
List * AddRelationNewConstraints(Relation rel, List *newColDefaults, List *newConstraints, bool allow_merge, bool is_local, bool is_internal)
Definition: heap.c:2186
TypeName * ofTypename
Definition: parsenodes.h:1942
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 1167 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(), 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().

1168 {
1169  List *rels = NIL;
1170  List *relids = NIL;
1171  List *seq_relids = NIL;
1172  EState *estate;
1173  ResultRelInfo *resultRelInfos;
1174  ResultRelInfo *resultRelInfo;
1175  SubTransactionId mySubid;
1176  ListCell *cell;
1177 
1178  /*
1179  * Open, exclusive-lock, and check all the explicitly-specified relations
1180  */
1181  foreach(cell, stmt->relations)
1182  {
1183  RangeVar *rv = lfirst(cell);
1184  Relation rel;
1185  bool recurse = rv->inh;
1186  Oid myrelid;
1187 
1188  rel = heap_openrv(rv, AccessExclusiveLock);
1189  myrelid = RelationGetRelid(rel);
1190  /* don't throw error for "TRUNCATE foo, foo" */
1191  if (list_member_oid(relids, myrelid))
1192  {
1194  continue;
1195  }
1196  truncate_check_rel(rel);
1197  rels = lappend(rels, rel);
1198  relids = lappend_oid(relids, myrelid);
1199 
1200  if (recurse)
1201  {
1202  ListCell *child;
1203  List *children;
1204 
1205  children = find_all_inheritors(myrelid, AccessExclusiveLock, NULL);
1206 
1207  foreach(child, children)
1208  {
1209  Oid childrelid = lfirst_oid(child);
1210 
1211  if (list_member_oid(relids, childrelid))
1212  continue;
1213 
1214  /* find_all_inheritors already got lock */
1215  rel = heap_open(childrelid, NoLock);
1216  truncate_check_rel(rel);
1217  rels = lappend(rels, rel);
1218  relids = lappend_oid(relids, childrelid);
1219  }
1220  }
1221  else if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
1222  ereport(ERROR,
1223  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1224  errmsg("must truncate child tables too")));
1225  }
1226 
1227  /*
1228  * In CASCADE mode, suck in all referencing relations as well. This
1229  * requires multiple iterations to find indirectly-dependent relations. At
1230  * each phase, we need to exclusive-lock new rels before looking for their
1231  * dependencies, else we might miss something. Also, we check each rel as
1232  * soon as we open it, to avoid a faux pas such as holding lock for a long
1233  * time on a rel we have no permissions for.
1234  */
1235  if (stmt->behavior == DROP_CASCADE)
1236  {
1237  for (;;)
1238  {
1239  List *newrelids;
1240 
1241  newrelids = heap_truncate_find_FKs(relids);
1242  if (newrelids == NIL)
1243  break; /* nothing else to add */
1244 
1245  foreach(cell, newrelids)
1246  {
1247  Oid relid = lfirst_oid(cell);
1248  Relation rel;
1249 
1250  rel = heap_open(relid, AccessExclusiveLock);
1251  ereport(NOTICE,
1252  (errmsg("truncate cascades to table \"%s\"",
1253  RelationGetRelationName(rel))));
1254  truncate_check_rel(rel);
1255  rels = lappend(rels, rel);
1256  relids = lappend_oid(relids, relid);
1257  }
1258  }
1259  }
1260 
1261  /*
1262  * Check foreign key references. In CASCADE mode, this should be
1263  * unnecessary since we just pulled in all the references; but as a
1264  * cross-check, do it anyway if in an Assert-enabled build.
1265  */
1266 #ifdef USE_ASSERT_CHECKING
1267  heap_truncate_check_FKs(rels, false);
1268 #else
1269  if (stmt->behavior == DROP_RESTRICT)
1270  heap_truncate_check_FKs(rels, false);
1271 #endif
1272 
1273  /*
1274  * If we are asked to restart sequences, find all the sequences, lock them
1275  * (we need AccessExclusiveLock for ResetSequence), and check permissions.
1276  * We want to do this early since it's pointless to do all the truncation
1277  * work only to fail on sequence permissions.
1278  */
1279  if (stmt->restart_seqs)
1280  {
1281  foreach(cell, rels)
1282  {
1283  Relation rel = (Relation) lfirst(cell);
1284  List *seqlist = getOwnedSequences(RelationGetRelid(rel));
1285  ListCell *seqcell;
1286 
1287  foreach(seqcell, seqlist)
1288  {
1289  Oid seq_relid = lfirst_oid(seqcell);
1290  Relation seq_rel;
1291 
1292  seq_rel = relation_open(seq_relid, AccessExclusiveLock);
1293 
1294  /* This check must match AlterSequence! */
1295  if (!pg_class_ownercheck(seq_relid, GetUserId()))
1297  RelationGetRelationName(seq_rel));
1298 
1299  seq_relids = lappend_oid(seq_relids, seq_relid);
1300 
1301  relation_close(seq_rel, NoLock);
1302  }
1303  }
1304  }
1305 
1306  /* Prepare to catch AFTER triggers. */
1308 
1309  /*
1310  * To fire triggers, we'll need an EState as well as a ResultRelInfo for
1311  * each relation. We don't need to call ExecOpenIndices, though.
1312  */
1313  estate = CreateExecutorState();
1314  resultRelInfos = (ResultRelInfo *)
1315  palloc(list_length(rels) * sizeof(ResultRelInfo));
1316  resultRelInfo = resultRelInfos;
1317  foreach(cell, rels)
1318  {
1319  Relation rel = (Relation) lfirst(cell);
1320 
1321  InitResultRelInfo(resultRelInfo,
1322  rel,
1323  0, /* dummy rangetable index */
1324  NULL,
1325  0);
1326  resultRelInfo++;
1327  }
1328  estate->es_result_relations = resultRelInfos;
1329  estate->es_num_result_relations = list_length(rels);
1330 
1331  /*
1332  * Process all BEFORE STATEMENT TRUNCATE triggers before we begin
1333  * truncating (this is because one of them might throw an error). Also, if
1334  * we were to allow them to prevent statement execution, that would need
1335  * to be handled here.
1336  */
1337  resultRelInfo = resultRelInfos;
1338  foreach(cell, rels)
1339  {
1340  estate->es_result_relation_info = resultRelInfo;
1341  ExecBSTruncateTriggers(estate, resultRelInfo);
1342  resultRelInfo++;
1343  }
1344 
1345  /*
1346  * OK, truncate each table.
1347  */
1348  mySubid = GetCurrentSubTransactionId();
1349 
1350  foreach(cell, rels)
1351  {
1352  Relation rel = (Relation) lfirst(cell);
1353 
1354  /* Skip partitioned tables as there is nothing to do */
1355  if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
1356  continue;
1357 
1358  /*
1359  * Normally, we need a transaction-safe truncation here. However, if
1360  * the table was either created in the current (sub)transaction or has
1361  * a new relfilenode in the current (sub)transaction, then we can just
1362  * truncate it in-place, because a rollback would cause the whole
1363  * table or the current physical file to be thrown away anyway.
1364  */
1365  if (rel->rd_createSubid == mySubid ||
1366  rel->rd_newRelfilenodeSubid == mySubid)
1367  {
1368  /* Immediate, non-rollbackable truncation is OK */
1369  heap_truncate_one_rel(rel);
1370  }
1371  else
1372  {
1373  Oid heap_relid;
1374  Oid toast_relid;
1375  MultiXactId minmulti;
1376 
1377  /*
1378  * This effectively deletes all rows in the table, and may be done
1379  * in a serializable transaction. In that case we must record a
1380  * rw-conflict in to this transaction from each transaction
1381  * holding a predicate lock on the table.
1382  */
1384 
1385  minmulti = GetOldestMultiXactId();
1386 
1387  /*
1388  * Need the full transaction-safe pushups.
1389  *
1390  * Create a new empty storage file for the relation, and assign it
1391  * as the relfilenode value. The old storage file is scheduled for
1392  * deletion at commit.
1393  */
1394  RelationSetNewRelfilenode(rel, rel->rd_rel->relpersistence,
1395  RecentXmin, minmulti);
1396  if (rel->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED)
1397  heap_create_init_fork(rel);
1398 
1399  heap_relid = RelationGetRelid(rel);
1400  toast_relid = rel->rd_rel->reltoastrelid;
1401 
1402  /*
1403  * The same for the toast table, if any.
1404  */
1405  if (OidIsValid(toast_relid))
1406  {
1407  rel = relation_open(toast_relid, AccessExclusiveLock);
1408  RelationSetNewRelfilenode(rel, rel->rd_rel->relpersistence,
1409  RecentXmin, minmulti);
1410  if (rel->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED)
1411  heap_create_init_fork(rel);
1412  heap_close(rel, NoLock);
1413  }
1414 
1415  /*
1416  * Reconstruct the indexes to match, and we're done.
1417  */
1419  }
1420 
1421  pgstat_count_truncate(rel);
1422  }
1423 
1424  /*
1425  * Restart owned sequences if we were asked to.
1426  */
1427  foreach(cell, seq_relids)
1428  {
1429  Oid seq_relid = lfirst_oid(cell);
1430 
1431  ResetSequence(seq_relid);
1432  }
1433 
1434  /*
1435  * Process all AFTER STATEMENT TRUNCATE triggers.
1436  */
1437  resultRelInfo = resultRelInfos;
1438  foreach(cell, rels)
1439  {
1440  estate->es_result_relation_info = resultRelInfo;
1441  ExecASTruncateTriggers(estate, resultRelInfo);
1442  resultRelInfo++;
1443  }
1444 
1445  /* Handle queued AFTER triggers */
1446  AfterTriggerEndQuery(estate);
1447 
1448  /* We can clean up the EState now */
1449  FreeExecutorState(estate);
1450 
1451  /* And close the rels (can't do this while EState still holds refs) */
1452  foreach(cell, rels)
1453  {
1454  Relation rel = (Relation) lfirst(cell);
1455 
1456  heap_close(rel, NoLock);
1457  }
1458 }
#define NIL
Definition: pg_list.h:69
void InitResultRelInfo(ResultRelInfo *resultRelInfo, Relation resultRelationDesc, Index resultRelationIndex, Relation partition_root, int instrument_options)
Definition: execMain.c:1246
void RelationSetNewRelfilenode(Relation relation, char persistence, TransactionId freezeXid, MultiXactId minmulti)
Definition: relcache.c:3414
#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:2858
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:2895
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: heapam.c:1263
SubTransactionId rd_newRelfilenodeSubid
Definition: rel.h:110
uint32 SubTransactionId
Definition: c.h:401
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:113
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:169
DropBehavior behavior
Definition: parsenodes.h:2522
struct RelationData * Relation
Definition: relcache.h:21
void ExecBSTruncateTriggers(EState *estate, ResultRelInfo *relinfo)
Definition: trigger.c:2807
#define ERROR
Definition: elog.h:43
struct ResultRelInfo ResultRelInfo
List * relations
Definition: parsenodes.h:2520
#define NoLock
Definition: lockdefs.h:34
void heap_create_init_fork(Relation rel)
Definition: heap.c:1377
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3377
ResultRelInfo * es_result_relations
Definition: execnodes.h:384
bool restart_seqs
Definition: parsenodes.h:2521
void ExecASTruncateTriggers(EState *estate, ResultRelInfo *relinfo)
Definition: trigger.c:2859
#define RelationGetRelationName(relation)
Definition: rel.h:433
void pgstat_count_truncate(Relation rel)
Definition: pgstat.c:1907
#define ereport(elevel, rest)
Definition: elog.h:122
EState * CreateExecutorState(void)
Definition: execUtils.c:73
bool inh
Definition: primnodes.h:69
List * lappend(List *list, void *datum)
Definition: list.c:128
SubTransactionId rd_createSubid
Definition: rel.h:109
List * getOwnedSequences(Oid relid)
Definition: pg_depend.c:560
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
MultiXactId GetOldestMultiXactId(void)
Definition: multixact.c:2491
static void truncate_check_rel(Relation rel)
Definition: tablecmds.c:1464
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
int es_num_result_relations
Definition: execnodes.h:385
Relation heap_openrv(const RangeVar *relation, LOCKMODE lockmode)
Definition: heapam.c:1315
#define NOTICE
Definition: elog.h:37
void AfterTriggerBeginQuery(void)
Definition: trigger.c:4150
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:4520
static int list_length(const List *l)
Definition: pg_list.h:89
void CheckTableForSerializableConflictIn(Relation relation)
Definition: predicate.c:4327
#define AccessExclusiveLock
Definition: lockdefs.h:46
List * find_all_inheritors(Oid parentrelId, LOCKMODE lockmode, List **numparents)
Definition: pg_inherits.c:158
void AfterTriggerEndQuery(EState *estate)
Definition: trigger.c:4170
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:1117
#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:3515
Definition: pg_list.h:45
#define RelationGetRelid(relation)
Definition: rel.h:413
List * heap_truncate_find_FKs(List *relationIds)
Definition: heap.c:2987
#define lfirst_oid(lc)
Definition: pg_list.h:108
ResultRelInfo * es_result_relation_info
Definition: execnodes.h:386
void find_composite_type_dependencies ( Oid  typeOid,
Relation  origRelation,
const char *  origTypeName 
)

Definition at line 4807 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().

4809 {
4810  Relation depRel;
4811  ScanKeyData key[2];
4812  SysScanDesc depScan;
4813  HeapTuple depTup;
4814  Oid arrayOid;
4815 
4816  /*
4817  * We scan pg_depend to find those things that depend on the rowtype. (We
4818  * assume we can ignore refobjsubid for a rowtype.)
4819  */
4821 
4822  ScanKeyInit(&key[0],
4824  BTEqualStrategyNumber, F_OIDEQ,
4826  ScanKeyInit(&key[1],
4828  BTEqualStrategyNumber, F_OIDEQ,
4829  ObjectIdGetDatum(typeOid));
4830 
4831  depScan = systable_beginscan(depRel, DependReferenceIndexId, true,
4832  NULL, 2, key);
4833 
4834  while (HeapTupleIsValid(depTup = systable_getnext(depScan)))
4835  {
4836  Form_pg_depend pg_depend = (Form_pg_depend) GETSTRUCT(depTup);
4837  Relation rel;
4838  Form_pg_attribute att;
4839 
4840  /* Ignore dependees that aren't user columns of relations */
4841  /* (we assume system columns are never of rowtypes) */
4842  if (pg_depend->classid != RelationRelationId ||
4843  pg_depend->objsubid <= 0)
4844  continue;
4845 
4846  rel = relation_open(pg_depend->objid, AccessShareLock);
4847  att = rel->rd_att->attrs[pg_depend->objsubid - 1];
4848 
4849  if (rel->rd_rel->relkind == RELKIND_RELATION ||
4850  rel->rd_rel->relkind == RELKIND_MATVIEW ||
4851  rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
4852  {
4853  if (origTypeName)
4854  ereport(ERROR,
4855  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4856  errmsg("cannot alter type \"%s\" because column \"%s.%s\" uses it",
4857  origTypeName,
4859  NameStr(att->attname))));
4860  else if (origRelation->rd_rel->relkind == RELKIND_COMPOSITE_TYPE)
4861  ereport(ERROR,
4862  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4863  errmsg("cannot alter type \"%s\" because column \"%s.%s\" uses it",
4864  RelationGetRelationName(origRelation),
4866  NameStr(att->attname))));
4867  else if (origRelation->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
4868  ereport(ERROR,
4869  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4870  errmsg("cannot alter foreign table \"%s\" because column \"%s.%s\" uses its row type",
4871  RelationGetRelationName(origRelation),
4873  NameStr(att->attname))));
4874  else
4875  ereport(ERROR,
4876  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
4877  errmsg("cannot alter table \"%s\" because column \"%s.%s\" uses its row type",
4878  RelationGetRelationName(origRelation),
4880  NameStr(att->attname))));
4881  }
4882  else if (OidIsValid(rel->rd_rel->reltype))
4883  {
4884  /*
4885  * A view or composite type itself isn't a problem, but we must
4886  * recursively check for indirect dependencies via its rowtype.
4887  */
4889  origRelation, origTypeName);
4890  }
4891 
4893  }
4894 
4895  systable_endscan(depScan);
4896 
4898 
4899  /*
4900  * If there's an array type for the rowtype, must check for uses of it,
4901  * too.
4902  */
4903  arrayOid = get_array_type(typeOid);
4904  if (OidIsValid(arrayOid))
4905  find_composite_type_dependencies(arrayOid, origRelation, origTypeName);
4906 }
#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:2480
#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:4807
#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:1263
Form_pg_class rd_rel
Definition: rel.h:113
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:433
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:184
#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:1287
TupleDesc rd_att
Definition: rel.h:114
#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:1117
#define RELKIND_RELATION
Definition: pg_class.h:160
#define BTEqualStrategyNumber
Definition: stratnum.h:31
void PreCommit_on_commit_actions ( void  )

Definition at line 12448 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().

12449 {
12450  ListCell *l;
12451  List *oids_to_truncate = NIL;
12452 
12453  foreach(l, on_commits)
12454  {
12455  OnCommitItem *oc = (OnCommitItem *) lfirst(l);
12456 
12457  /* Ignore entry if already dropped in this xact */
12459  continue;
12460 
12461  switch (oc->oncommit)
12462  {
12463  case ONCOMMIT_NOOP:
12465  /* Do nothing (there shouldn't be such entries, actually) */
12466  break;
12467  case ONCOMMIT_DELETE_ROWS:
12468 
12469  /*
12470  * If this transaction hasn't accessed any temporary
12471  * relations, we can skip truncating ON COMMIT DELETE ROWS
12472  * tables, as they must still be empty.
12473  */
12475  oids_to_truncate = lappend_oid(oids_to_truncate, oc->relid);
12476  break;
12477  case ONCOMMIT_DROP:
12478  {
12479  ObjectAddress object;
12480 
12481  object.classId = RelationRelationId;
12482  object.objectId = oc->relid;
12483  object.objectSubId = 0;
12484 
12485  /*
12486  * Since this is an automatic drop, rather than one
12487  * directly initiated by the user, we pass the
12488  * PERFORM_DELETION_INTERNAL flag.
12489  */
12490  performDeletion(&object,
12492 
12493  /*
12494  * Note that table deletion will call
12495  * remove_on_commit_action, so the entry should get marked
12496  * as deleted.
12497  */
12499  break;
12500  }
12501  }
12502  }
12503  if (oids_to_truncate != NIL)
12504  {
12505  heap_truncate(oids_to_truncate);
12506  CommandCounterIncrement(); /* XXX needed? */
12507  }
12508 }
#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:301
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:2817
#define InvalidSubTransactionId
Definition: c.h:403
Definition: pg_list.h:45
#define PERFORM_DELETION_INTERNAL
Definition: dependency.h:173
void RangeVarCallbackOwnsRelation ( const RangeVar relation,
Oid  relId,
Oid  oldRelId,
void *  noCatalogs 
)

Definition at line 12639 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().

12641 {
12642  HeapTuple tuple;
12643 
12644  /* Nothing to do if the relation was not found. */
12645  if (!OidIsValid(relId))
12646  return;
12647 
12648  tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relId));
12649  if (!HeapTupleIsValid(tuple)) /* should not happen */
12650  elog(ERROR, "cache lookup failed for relation %u", relId);
12651 
12652  if (!pg_class_ownercheck(relId, GetUserId()))
12654  relation->relname);
12655 
12656  if (!allowSystemTableMods &&
12657  IsSystemClass(relId, (Form_pg_class) GETSTRUCT(tuple)))
12658  ereport(ERROR,
12659  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
12660  errmsg("permission denied: \"%s\" is a system catalog",
12661  relation->relname)));
12662 
12663  ReleaseSysCache(tuple);
12664 }
#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:149
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:3377
#define ereport(elevel, rest)
Definition: elog.h:122
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1081
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:4520
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 12606 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().

12608 {
12609  char relkind;
12610 
12611  /* Nothing to do if the relation was not found. */
12612  if (!OidIsValid(relId))
12613  return;
12614 
12615  /*
12616  * If the relation does exist, check whether it's an index. But note that
12617  * the relation might have been dropped between the time we did the name
12618  * lookup and now. In that case, there's nothing to do.
12619  */
12620  relkind = get_rel_relkind(relId);
12621  if (!relkind)
12622  return;
12623  if (relkind != RELKIND_RELATION && relkind != RELKIND_TOASTVALUE &&
12624  relkind != RELKIND_MATVIEW && relkind != RELKIND_PARTITIONED_TABLE)
12625  ereport(ERROR,
12626  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
12627  errmsg("\"%s\" is not a table or materialized view", relation->relname)));
12628 
12629  /* Check permissions */
12630  if (!pg_class_ownercheck(relId, GetUserId()))
12632 }
Oid GetUserId(void)
Definition: miscinit.c:283
char get_rel_relkind(Oid relid)
Definition: lsyscache.c:1769
#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:3377
#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:4520
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 12394 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().

12395 {
12396  OnCommitItem *oc;
12397  MemoryContext oldcxt;
12398 
12399  /*
12400  * We needn't bother registering the relation unless there is an ON COMMIT
12401  * action we need to take.
12402  */
12403  if (action == ONCOMMIT_NOOP || action == ONCOMMIT_PRESERVE_ROWS)
12404  return;
12405 
12407 
12408  oc = (OnCommitItem *) palloc(sizeof(OnCommitItem));
12409  oc->relid = relid;
12410  oc->oncommit = action;
12413 
12414  on_commits = lcons(oc, on_commits);
12415 
12416  MemoryContextSwitchTo(oldcxt);
12417 }
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 12425 of file tablecmds.c.

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

Referenced by heap_drop_with_catalog().

12426 {
12427  ListCell *l;
12428 
12429  foreach(l, on_commits)
12430  {
12431  OnCommitItem *oc = (OnCommitItem *) lfirst(l);
12432 
12433  if (oc->relid == relid)
12434  {
12436  break;
12437  }
12438  }
12439 }
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 955 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, 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().

956 {
957  ObjectAddresses *objects;
958  char relkind;
959  ListCell *cell;
960  int flags = 0;
961  LOCKMODE lockmode = AccessExclusiveLock;
962 
963  /* DROP CONCURRENTLY uses a weaker lock, and has some restrictions */
964  if (drop->concurrent)
965  {
967  lockmode = ShareUpdateExclusiveLock;
968  Assert(drop->removeType == OBJECT_INDEX);
969  if (list_length(drop->objects) != 1)
970  ereport(ERROR,
971  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
972  errmsg("DROP INDEX CONCURRENTLY does not support dropping multiple objects")));
973  if (drop->behavior == DROP_CASCADE)
974  ereport(ERROR,
975  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
976  errmsg("DROP INDEX CONCURRENTLY does not support CASCADE")));
977  }
978 
979  /*
980  * First we identify all the relations, then we delete them in a single
981  * performMultipleDeletions() call. This is to avoid unwanted DROP
982  * RESTRICT errors if one of the relations depends on another.
983  */
984 
985  /* Determine required relkind */
986  switch (drop->removeType)
987  {
988  case OBJECT_TABLE:
989  relkind = RELKIND_RELATION;
990  break;
991 
992  case OBJECT_INDEX:
993  relkind = RELKIND_INDEX;
994  break;
995 
996  case OBJECT_SEQUENCE:
997  relkind = RELKIND_SEQUENCE;
998  break;
999 
1000  case OBJECT_VIEW:
1001  relkind = RELKIND_VIEW;
1002  break;
1003 
1004  case OBJECT_MATVIEW:
1005  relkind = RELKIND_MATVIEW;
1006  break;
1007 
1008  case OBJECT_FOREIGN_TABLE:
1009  relkind = RELKIND_FOREIGN_TABLE;
1010  break;
1011 
1012  default:
1013  elog(ERROR, "unrecognized drop object type: %d",
1014  (int) drop->removeType);
1015  relkind = 0; /* keep compiler quiet */
1016  break;
1017  }
1018 
1019  /* Lock and validate each relation; build a list of object addresses */
1020  objects = new_object_addresses();
1021 
1022  foreach(cell, drop->objects)
1023  {
1024  RangeVar *rel = makeRangeVarFromNameList((List *) lfirst(cell));
1025  Oid relOid;
1026  ObjectAddress obj;
1028 
1029  /*
1030  * These next few steps are a great deal like relation_openrv, but we
1031  * don't bother building a relcache entry since we don't need it.
1032  *
1033  * Check for shared-cache-inval messages before trying to access the
1034  * relation. This is needed to cover the case where the name
1035  * identifies a rel that has been dropped and recreated since the
1036  * start of our transaction: if we don't flush the old syscache entry,
1037  * then we'll latch onto that entry and suffer an error later.
1038  */
1040 
1041  /* Look up the appropriate relation using namespace search. */
1042  state.relkind = relkind;
1043  state.heapOid = InvalidOid;
1044  state.concurrent = drop->concurrent;
1045  relOid = RangeVarGetRelidExtended(rel, lockmode, true,
1046  false,
1048  (void *) &state);
1049 
1050  /* Not there? */
1051  if (!OidIsValid(relOid))
1052  {
1053  DropErrorMsgNonExistent(rel, relkind, drop->missing_ok);
1054  continue;
1055  }
1056 
1057  /* OK, we're ready to delete this one */
1059  obj.objectId = relOid;
1060  obj.objectSubId = 0;
1061 
1062  add_exact_object_address(&obj, objects);
1063  }
1064 
1065  performMultipleDeletions(objects, drop->behavior, flags);
1066 
1067  free_object_addresses(objects);
1068 }
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:2506
bool missing_ok
Definition: parsenodes.h:2509
#define RELKIND_MATVIEW
Definition: pg_class.h:165
int errcode(int sqlerrcode)
Definition: elog.c:575
RangeVar * makeRangeVarFromNameList(List *names)
Definition: namespace.c:2857
void add_exact_object_address(const ObjectAddress *object, ObjectAddresses *addrs)
Definition: dependency.c:2081
ObjectAddresses * new_object_addresses(void)
Definition: dependency.c:2026
void free_object_addresses(ObjectAddresses *addrs)
Definition: dependency.c:2297
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
ObjectType removeType
Definition: parsenodes.h:2507
#define PERFORM_DELETION_CONCURRENTLY
Definition: dependency.h:174
#define ERROR
Definition: elog.h:43
bool concurrent
Definition: parsenodes.h:2510
DropBehavior behavior
Definition: parsenodes.h:2508
#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:1075
#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:880
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:360
#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 2642 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().

2643 {
2644  Oid relid;
2645  AttrNumber attnum;
2646  ObjectAddress address;
2647 
2648  /* lock level taken here should match renameatt_internal */
2650  stmt->missing_ok, false,
2652  NULL);
2653 
2654  if (!OidIsValid(relid))
2655  {
2656  ereport(NOTICE,
2657  (errmsg("relation \"%s\" does not exist, skipping",
2658  stmt->relation->relname)));
2659  return InvalidObjectAddress;
2660  }
2661 
2662  attnum =
2663  renameatt_internal(relid,
2664  stmt->subname, /* old att name */
2665  stmt->newname, /* new att name */
2666  stmt->relation->inh, /* recursive? */
2667  false, /* recursing? */
2668  0, /* expected inhcount */
2669  stmt->behavior);
2670 
2671  ObjectAddressSubSet(address, RelationRelationId, relid, attnum);
2672 
2673  return address;
2674 }
char * subname
Definition: parsenodes.h:2720
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:2722
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:2724
#define ereport(elevel, rest)
Definition: elog.h:122
bool inh
Definition: primnodes.h:69
RangeVar * relation
Definition: parsenodes.h:2718
#define NOTICE
Definition: elog.h:37
static void RangeVarCallbackForRenameAttribute(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:2622
#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:2477
#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:2723
int16 AttrNumber
Definition: attnum.h:21
ObjectAddress renameatt_type ( RenameStmt stmt)
ObjectAddress RenameConstraint ( RenameStmt stmt)

Definition at line 2779 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().

2780 {
2781  Oid relid = InvalidOid;
2782  Oid typid = InvalidOid;
2783 
2784  if (stmt->renameType == OBJECT_DOMCONSTRAINT)
2785  {
2786  Relation rel;
2787  HeapTuple tup;
2788 
2791  tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typid));
2792  if (!HeapTupleIsValid(tup))
2793  elog(ERROR, "cache lookup failed for type %u", typid);
2794  checkDomainOwner(tup);
2795  ReleaseSysCache(tup);
2796  heap_close(rel, NoLock);
2797  }
2798  else
2799  {
2800  /* lock level taken here should match rename_constraint_internal */
2802  stmt->missing_ok, false,
2804  NULL);
2805  if (!OidIsValid(relid))
2806  {
2807  ereport(NOTICE,
2808  (errmsg("relation \"%s\" does not exist, skipping",
2809  stmt->relation->relname)));
2810  return InvalidObjectAddress;
2811  }
2812  }
2813 
2814  return
2815  rename_constraint_internal(relid, typid,
2816  stmt->subname,
2817  stmt->newname,
2818  (stmt->relation &&
2819  stmt->relation->inh), /* recursive? */
2820  false, /* recursing? */
2821  0 /* expected inhcount */ );
2822 
2823 }
char * subname
Definition: parsenodes.h:2720
ObjectType renameType
Definition: parsenodes.h:2716
#define castNode(_type_, nodeptr)
Definition: nodes.h:587
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:2680
char * newname
Definition: parsenodes.h:2722
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:149
char * relname
Definition: primnodes.h:68
bool missing_ok
Definition: parsenodes.h:2724
#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:2719
#define ereport(elevel, rest)
Definition: elog.h:122
bool inh
Definition: primnodes.h:69
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1081
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
RangeVar * relation
Definition: parsenodes.h:2718
#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:2622
#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 2830 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().

2831 {
2832  Oid relid;
2833  ObjectAddress address;
2834 
2835  /*
2836  * Grab an exclusive lock on the target table, index, sequence, view,
2837  * materialized view, or foreign table, which we will NOT release until
2838  * end of transaction.
2839  *
2840  * Lock level used here should match RenameRelationInternal, to avoid lock
2841  * escalation.
2842  */
2844  stmt->missing_ok, false,
2846  (void *) stmt);
2847 
2848  if (!OidIsValid(relid))
2849  {
2850  ereport(NOTICE,
2851  (errmsg("relation \"%s\" does not exist, skipping",
2852  stmt->relation->relname)));
2853  return InvalidObjectAddress;
2854  }
2855 
2856  /* Do the work */
2857  RenameRelationInternal(relid, stmt->newname, false);
2858 
2859  ObjectAddressSet(address, RelationRelationId, relid);
2860 
2861  return address;
2862 }
void RenameRelationInternal(Oid myrelid, const char *newrelname, bool is_internal)
Definition: tablecmds.c:2874
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:2722
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:2724
static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid, Oid oldrelid, void *arg)
Definition: tablecmds.c:12671
#define ereport(elevel, rest)
Definition: elog.h:122
RangeVar * relation
Definition: parsenodes.h:2718
#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 2874 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().

2875 {
2876  Relation targetrelation;
2877  Relation relrelation; /* for RELATION relation */
2878  HeapTuple reltup;
2879  Form_pg_class relform;
2880  Oid namespaceId;
2881 
2882  /*
2883  * Grab an exclusive lock on the target table, index, sequence, view,
2884  * materialized view, or foreign table, which we will NOT release until
2885  * end of transaction.
2886  */
2887  targetrelation = relation_open(myrelid, AccessExclusiveLock);
2888  namespaceId = RelationGetNamespace(targetrelation);
2889 
2890  /*
2891  * Find relation's pg_class tuple, and make sure newrelname isn't in use.
2892  */
2894 
2895  reltup = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(myrelid));
2896  if (!HeapTupleIsValid(reltup)) /* shouldn't happen */
2897  elog(ERROR, "cache lookup failed for relation %u", myrelid);
2898  relform = (Form_pg_class) GETSTRUCT(reltup);
2899 
2900  if (get_relname_relid(newrelname, namespaceId) != InvalidOid)
2901  ereport(ERROR,
2902  (errcode(ERRCODE_DUPLICATE_TABLE),
2903  errmsg("relation \"%s\" already exists",
2904  newrelname)));
2905 
2906  /*
2907  * Update pg_class tuple with new relname. (Scribbling on reltup is OK
2908  * because it's a copy...)
2909  */
2910  namestrcpy(&(relform->relname), newrelname);
2911 
2912  CatalogTupleUpdate(relrelation, &reltup->t_self, reltup);
2913 
2915  InvalidOid, is_internal);
2916 
2917  heap_freetuple(reltup);
2918  heap_close(relrelation, RowExclusiveLock);
2919 
2920  /*
2921  * Also rename the associated type, if any.
2922  */
2923  if (OidIsValid(targetrelation->rd_rel->reltype))
2924  RenameTypeInternal(targetrelation->rd_rel->reltype,
2925  newrelname, namespaceId);
2926 
2927  /*
2928  * Also rename the associated constraint, if any.
2929  */
2930  if (targetrelation->rd_rel->relkind == RELKIND_INDEX)
2931  {
2932  Oid constraintId = get_index_constraint(myrelid);
2933 
2934  if (OidIsValid(constraintId))
2935  RenameConstraintById(constraintId, newrelname);
2936  }
2937 
2938  /*
2939  * Close rel, but keep exclusive lock!
2940  */
2941  relation_close(targetrelation, NoLock);
2942 }
#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:1263
#define heap_close(r, l)
Definition: heapam.h:97
Form_pg_class rd_rel
Definition: rel.h:113
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:1651
#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:676
#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:1287
#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:158
#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:1117
#define elog
Definition: elog.h:219
#define RelationGetNamespace(relation)
Definition: rel.h:440
void SetRelationHasSubclass ( Oid  relationId,
bool  relhassubclass 
)

Definition at line 2396 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().

2397 {
2398  Relation relationRelation;
2399  HeapTuple tuple;
2400  Form_pg_class classtuple;
2401 
2402  /*
2403  * Fetch a modifiable copy of the tuple, modify it, update pg_class.
2404  */
2405  relationRelation = heap_open(RelationRelationId, RowExclusiveLock);
2406  tuple = SearchSysCacheCopy1(RELOID, ObjectIdGetDatum(relationId));
2407  if (!HeapTupleIsValid(tuple))
2408  elog(ERROR, "cache lookup failed for relation %u", relationId);
2409  classtuple = (Form_pg_class) GETSTRUCT(tuple);
2410 
2411  if (classtuple->relhassubclass != relhassubclass)
2412  {
2413  classtuple->relhassubclass = relhassubclass;
2414  CatalogTupleUpdate(relationRelation, &tuple->t_self, tuple);
2415  }
2416  else
2417  {
2418  /* no need to change tuple, but force relcache rebuild anyway */
2420  }
2421 
2422  heap_freetuple(tuple);
2423  heap_close(relationRelation, RowExclusiveLock);
2424 }
#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:1287
#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:158
void CacheInvalidateRelcacheByTuple(HeapTuple classTuple)
Definition: inval.c:1261
#define elog
Definition: elog.h:219