database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-31 22:04:40 +03:00
Code Activity

Wrap calls to SearchSysCache and related functions using macros.

Browse Source 
The purpose of this change is to eliminate the need for every caller
of SearchSysCache, SearchSysCacheCopy, SearchSysCacheExists,
GetSysCacheOid, and SearchSysCacheList to know the maximum number
of allowable keys for a syscache entry (currently 4).  This will
make it far easier to increase the maximum number of keys in a
future release should we choose to do so, and it makes the code
shorter, too.

Design and review by Tom Lane.
This commit is contained in:
Robert Haas
2010-02-14 18:42:19 +00:00
parent 1012492bc0
commit e26c539e9f
97 changed files with 1125 additions and 2061 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/access/transam/varsup.c
View File

@ -6,7 +6,7 @@
* Copyright (c) 2000-2010, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/varsup.c,v 1.87 2010/01/02 16:57:35 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/varsup.c,v 1.88 2010/02/14 18:42:12 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@ -402,9 +402,7 @@ ForceTransactionIdLimitUpdate(void)
if (TransactionIdFollowsOrEquals(nextXid, xidVacLimit) &&
TransactionIdIsValid(xidVacLimit))
return true; /* past VacLimit, don't delay updating */
if (!SearchSysCacheExists(DATABASEOID,
ObjectIdGetDatum(oldestXidDB),
0, 0, 0))
if (!SearchSysCacheExists1(DATABASEOID, ObjectIdGetDatum(oldestXidDB)))
return true; /* could happen, per comments above */
return false;
}