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Restructure smgr API as per recent proposal. smgr no longer depends on

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the relcache, and so the notion of 'blind write' is gone.  This should
improve efficiency in bgwriter and background checkpoint processes.
Internal restructuring in md.c to remove the not-very-useful array of
MdfdVec objects --- might as well just use pointers.
Also remove the long-dead 'persistent main memory' storage manager (mm.c),
since it seems quite unlikely to ever get resurrected.
This commit is contained in:
Tom Lane
2004-02-10 01:55:27 +00:00
parent f06e79525a
commit 87bd956385
37 changed files with 933 additions and 1776 deletions
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10
src/include/utils/relcache.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/relcache.h,v 1.38 2003/11/29 22:41:16 pgsql Exp $
* $PostgreSQL: pgsql/src/include/utils/relcache.h,v 1.39 2004/02/10 01:55:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -24,7 +24,6 @@ extern Relation RelationSysNameGetRelation(const char *relationName);
/* finds an existing cache entry, but won't make a new one */
extern Relation RelationIdCacheGetRelation(Oid relationId);
extern Relation RelationNodeCacheGetRelation(RelFileNode rnode);
extern void RelationClose(Relation relation);
@ -61,7 +60,7 @@ extern Relation RelationBuildLocalRelation(const char *relname,
*/
extern void RelationForgetRelation(Oid rid);
extern void RelationIdInvalidateRelationCacheByRelationId(Oid relationId);
extern void RelationCacheInvalidateEntry(Oid relationId, RelFileNode *rnode);
extern void RelationCacheInvalidate(void);
@ -73,11 +72,6 @@ extern void AtEOXact_RelationCache(bool commit);
extern bool RelationIdIsInInitFile(Oid relationId);
extern void RelationCacheInitFileInvalidate(bool beforeSend);
/* XLOG support */
extern void CreateDummyCaches(void);
extern void DestroyDummyCaches(void);
/* should be used only by relcache.c and catcache.c */
extern bool criticalRelcachesBuilt;