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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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6
src/backend/parser/parse_node.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_node.c,v 1.107 2010/01/02 16:57:49 momjian Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_node.c,v 1.108 2010/02/14 18:42:15 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@ -208,9 +208,7 @@ transformArrayType(Oid arrayType)
Form_pg_type type_struct_array;
/* Get the type tuple for the array */
type_tuple_array = SearchSysCache(TYPEOID,
ObjectIdGetDatum(arrayType),
0, 0, 0);
type_tuple_array = SearchSysCache1(TYPEOID, ObjectIdGetDatum(arrayType));
if (!HeapTupleIsValid(type_tuple_array))
elog(ERROR, "cache lookup failed for type %u", arrayType);
type_struct_array = (Form_pg_type) GETSTRUCT(type_tuple_array);