database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-02 09:02:37 +03:00
Code Activity

Replace implementation of pg_log as a relation accessed through the

Browse Source 
buffer manager with 'pg_clog', a specialized access method modeled
on pg_xlog.  This simplifies startup (don't need to play games to
open pg_log; among other things, OverrideTransactionSystem goes away),
should improve performance a little, and opens the door to recycling
commit log space by removing no-longer-needed segments of the commit
log.  Actual recycling is not there yet, but I felt I should commit
this part separately since it'd still be useful if we chose not to
do transaction ID wraparound.
This commit is contained in:
Tom Lane
2001-08-25 18:52:43 +00:00
parent 4699d81dc9
commit 2589735da0
39 changed files with 1248 additions and 1128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/backend/utils/cache/relcache.c vendored
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.142 2001/08/10 18:57:37 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.143 2001/08/25 18:52:42 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -43,7 +43,6 @@
#include "catalog/indexing.h"
#include "catalog/pg_attrdef.h"
#include "catalog/pg_index.h"
#include "catalog/pg_log.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_relcheck.h"
#include "catalog/pg_rewrite.h"
@ -67,7 +66,6 @@ static FormData_pg_attribute Desc_pg_class[Natts_pg_class] = {Schema_pg_class};
static FormData_pg_attribute Desc_pg_attribute[Natts_pg_attribute] = {Schema_pg_attribute};
static FormData_pg_attribute Desc_pg_proc[Natts_pg_proc] = {Schema_pg_proc};
static FormData_pg_attribute Desc_pg_type[Natts_pg_type] = {Schema_pg_type};
static FormData_pg_attribute Desc_pg_log[Natts_pg_log] = {Schema_pg_log};
/*
* Hash tables that index the relation cache
@ -2120,7 +2118,6 @@ RelationCacheInitialize(void)
formrdesc(AttributeRelationName, Natts_pg_attribute, Desc_pg_attribute);
formrdesc(ProcedureRelationName, Natts_pg_proc, Desc_pg_proc);
formrdesc(TypeRelationName, Natts_pg_type, Desc_pg_type);
formrdesc(LogRelationName, Natts_pg_log, Desc_pg_log);
/*
* init_irels() used to be called here. It is changed to be called in
@ -2167,10 +2164,6 @@ RelationCacheInitializePhase2(void)
fixrdesc(AttributeRelationName);
fixrdesc(ProcedureRelationName);
fixrdesc(TypeRelationName);
/*
* We don't bother to update the entries for pg_log.
*/
}
}