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Wrap calls to SearchSysCache and related functions using macros.

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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
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10
src/backend/utils/adt/xml.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.95 2010/01/02 16:57:55 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.96 2010/02/14 18:42:17 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@ -2612,9 +2612,7 @@ map_sql_table_to_xmlschema(TupleDesc tupdesc, Oid relid, bool nulls,
HeapTuple tuple;
Form_pg_class reltuple;
tuple = SearchSysCache(RELOID,
ObjectIdGetDatum(relid),
0, 0, 0);
tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relid));
if (!HeapTupleIsValid(tuple))
elog(ERROR, "cache lookup failed for relation %u", relid);
reltuple = (Form_pg_class) GETSTRUCT(tuple);
@ -2912,9 +2910,7 @@ map_sql_type_to_xml_name(Oid typeoid, int typmod)
HeapTuple tuple;
Form_pg_type typtuple;
tuple = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
tuple = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typeoid));
if (!HeapTupleIsValid(tuple))
elog(ERROR, "cache lookup failed for type %u", typeoid);
typtuple = (Form_pg_type) GETSTRUCT(tuple);