database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-19 23:22:23 +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

10
src/backend/executor/execAmi.c
View File

@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/executor/execAmi.c,v 1.107 2010/01/02 16:57:40 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/execAmi.c,v 1.108 2010/02/14 18:42:14 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@@ -484,17 +484,13 @@ IndexSupportsBackwardScan(Oid indexid)
Form_pg_am amrec;
/* Fetch the pg_class tuple of the index relation */
ht_idxrel = SearchSysCache(RELOID,
ObjectIdGetDatum(indexid),
0, 0, 0);
ht_idxrel = SearchSysCache1(RELOID, ObjectIdGetDatum(indexid));
if (!HeapTupleIsValid(ht_idxrel))
elog(ERROR, "cache lookup failed for relation %u", indexid);
idxrelrec = (Form_pg_class) GETSTRUCT(ht_idxrel);
/* Fetch the pg_am tuple of the index' access method */
ht_am = SearchSysCache(AMOID,
ObjectIdGetDatum(idxrelrec->relam),
0, 0, 0);
ht_am = SearchSysCache1(AMOID, ObjectIdGetDatum(idxrelrec->relam));
if (!HeapTupleIsValid(ht_am))
elog(ERROR, "cache lookup failed for access method %u",
idxrelrec->relam);