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Add support for cross-type hashing in hash index searches and hash joins.

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Hashing for aggregation purposes still needs work, so it's not time to
mark any cross-type operators as hashable for general use, but these cases
work if the operators are so marked by hand in the system catalogs.
This commit is contained in:
Tom Lane
2007-01-30 01:33:36 +00:00
parent e8cd6f14a2
commit a635c08fa1
12 changed files with 240 additions and 82 deletions
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3
src/backend/executor/nodeHashjoin.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.87 2007/01/28 23:21:26 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.88 2007/01/30 01:33:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -569,6 +569,7 @@ ExecHashJoinOuterGetTuple(PlanState *outerNode,
econtext->ecxt_outertuple = slot;
if (ExecHashGetHashValue(hashtable, econtext,
hjstate->hj_OuterHashKeys,
true, /* outer tuple */
(hjstate->js.jointype == JOIN_LEFT),
hashvalue))
{