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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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25
src/backend/optimizer/util/predtest.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/util/predtest.c,v 1.30 2010/01/02 16:57:48 momjian Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/util/predtest.c,v 1.31 2010/02/14 18:42:15 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@ -1585,9 +1585,7 @@ get_btree_test_op(Oid pred_op, Oid clause_op, bool refute_it)
* corresponding test operator. This should work for any logically
* consistent opfamilies.
*/
catlist = SearchSysCacheList(AMOPOPID, 1,
ObjectIdGetDatum(pred_op),
0, 0, 0);
catlist = SearchSysCacheList1(AMOPOPID, ObjectIdGetDatum(pred_op));
/*
* If we couldn't find any opfamily containing the pred_op, perhaps it is
@ -1601,9 +1599,8 @@ get_btree_test_op(Oid pred_op, Oid clause_op, bool refute_it)
{
pred_op_negated = true;
ReleaseSysCacheList(catlist);
catlist = SearchSysCacheList(AMOPOPID, 1,
ObjectIdGetDatum(pred_op_negator),
0, 0, 0);
catlist = SearchSysCacheList1(AMOPOPID,
ObjectIdGetDatum(pred_op_negator));
}
}
@ -1638,10 +1635,9 @@ get_btree_test_op(Oid pred_op, Oid clause_op, bool refute_it)
* From the same opfamily, find a strategy number for the clause_op,
* if possible
*/
clause_tuple = SearchSysCache(AMOPOPID,
ObjectIdGetDatum(clause_op),
ObjectIdGetDatum(opfamily_id),
0, 0);
clause_tuple = SearchSysCache2(AMOPOPID,
ObjectIdGetDatum(clause_op),
ObjectIdGetDatum(opfamily_id));
if (HeapTupleIsValid(clause_tuple))
{
Form_pg_amop clause_form = (Form_pg_amop) GETSTRUCT(clause_tuple);
@ -1655,10 +1651,9 @@ get_btree_test_op(Oid pred_op, Oid clause_op, bool refute_it)
}
else if (OidIsValid(clause_op_negator))
{
clause_tuple = SearchSysCache(AMOPOPID,
ObjectIdGetDatum(clause_op_negator),
ObjectIdGetDatum(opfamily_id),
0, 0);
clause_tuple = SearchSysCache2(AMOPOPID,
ObjectIdGetDatum(clause_op_negator),
ObjectIdGetDatum(opfamily_id));
if (HeapTupleIsValid(clause_tuple))
{
Form_pg_amop clause_form = (Form_pg_amop) GETSTRUCT(clause_tuple);