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of shared or nailed system catalogs. This has two key benefits: * The new CLUSTER-based VACUUM FULL can be applied safely to all catalogs. * We no longer have to use an unsafe reindex-in-place approach for reindexing shared catalogs. CLUSTER on nailed catalogs now works too, although I left it disabled on shared catalogs because the resulting pg_index.indisclustered update would only be visible in one database. Since reindexing shared system catalogs is now fully transactional and crash-safe, the former special cases in REINDEX behavior have been removed; shared catalogs are treated the same as non-shared. This commit does not do anything about the recently-discussed problem of deadlocks between VACUUM FULL/CLUSTER on a system catalog and other concurrent queries; will address that in a separate patch. As a stopgap, parallel_schedule has been tweaked to run vacuum.sql by itself, to avoid such failures during the regression tests.
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/*-------------------------------------------------------------------------
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*
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* heap.h
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* prototypes for functions in backend/catalog/heap.c
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*
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*
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/heap.h,v 1.97 2010/02/07 20:48:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef HEAP_H
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#define HEAP_H
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#include "parser/parse_node.h"
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#include "catalog/indexing.h"
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typedef struct RawColumnDefault
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{
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AttrNumber attnum; /* attribute to attach default to */
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Node *raw_default; /* default value (untransformed parse tree) */
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} RawColumnDefault;
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typedef struct CookedConstraint
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{
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ConstrType contype; /* CONSTR_DEFAULT or CONSTR_CHECK */
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char *name; /* name, or NULL if none */
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AttrNumber attnum; /* which attr (only for DEFAULT) */
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Node *expr; /* transformed default or check expr */
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bool is_local; /* constraint has local (non-inherited) def */
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int inhcount; /* number of times constraint is inherited */
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} CookedConstraint;
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extern Relation heap_create(const char *relname,
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Oid relnamespace,
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Oid reltablespace,
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Oid relid,
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TupleDesc tupDesc,
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char relkind,
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bool shared_relation,
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bool mapped_relation,
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bool allow_system_table_mods);
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extern Oid heap_create_with_catalog(const char *relname,
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Oid relnamespace,
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Oid reltablespace,
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Oid relid,
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Oid reltypeid,
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Oid reloftypeid,
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Oid ownerid,
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TupleDesc tupdesc,
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List *cooked_constraints,
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char relkind,
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bool shared_relation,
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bool mapped_relation,
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bool oidislocal,
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int oidinhcount,
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OnCommitAction oncommit,
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Datum reloptions,
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bool use_user_acl,
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bool allow_system_table_mods);
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extern void heap_drop_with_catalog(Oid relid);
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extern void heap_truncate(List *relids);
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extern void heap_truncate_one_rel(Relation rel);
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extern void heap_truncate_check_FKs(List *relations, bool tempTables);
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extern List *heap_truncate_find_FKs(List *relationIds);
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extern void InsertPgAttributeTuple(Relation pg_attribute_rel,
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Form_pg_attribute new_attribute,
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CatalogIndexState indstate);
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extern void InsertPgClassTuple(Relation pg_class_desc,
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Relation new_rel_desc,
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Oid new_rel_oid,
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Datum relacl,
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Datum reloptions);
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extern List *AddRelationNewConstraints(Relation rel,
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List *newColDefaults,
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List *newConstraints,
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bool allow_merge,
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bool is_local);
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extern void StoreAttrDefault(Relation rel, AttrNumber attnum, Node *expr);
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extern Node *cookDefault(ParseState *pstate,
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Node *raw_default,
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Oid atttypid,
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int32 atttypmod,
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char *attname);
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extern void DeleteRelationTuple(Oid relid);
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extern void DeleteAttributeTuples(Oid relid);
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extern void RemoveAttributeById(Oid relid, AttrNumber attnum);
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extern void RemoveAttrDefault(Oid relid, AttrNumber attnum,
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DropBehavior behavior, bool complain);
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extern void RemoveAttrDefaultById(Oid attrdefId);
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extern void RemoveStatistics(Oid relid, AttrNumber attnum);
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extern Form_pg_attribute SystemAttributeDefinition(AttrNumber attno,
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bool relhasoids);
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extern Form_pg_attribute SystemAttributeByName(const char *attname,
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bool relhasoids);
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extern void CheckAttributeNamesTypes(TupleDesc tupdesc, char relkind,
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bool allow_system_table_mods);
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extern void CheckAttributeType(const char *attname, Oid atttypid,
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bool allow_system_table_mods);
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#endif /* HEAP_H */
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