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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-07-31 19:54:11 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-07-31 19:54:11 +0000 |
| commit | e938544befb4b7eaecf1287d46cb39f4cda05567 (patch) | |
| tree | 4696701a9ca5c79ac5709c028820e74641ceb889 /src/backend/optimizer/util/relnode.c | |
| parent | 59bb0282d46f58e3cf29c8c7730030386d9e65cc (diff) | |
Fix a bug in the original implementation of redundant-join-clause removal:
clauses in which one side or the other references both sides of the join
cannot be removed as redundant, because that expression won't have been
constrained below the join. Per report from Sergey Burladyan.
Diffstat (limited to 'src/backend/optimizer/util/relnode.c')
| -rw-r--r-- | src/backend/optimizer/util/relnode.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backend/optimizer/util/relnode.c b/src/backend/optimizer/util/relnode.c index 5a45b4a4444..9b47ff17a70 100644 --- a/src/backend/optimizer/util/relnode.c +++ b/src/backend/optimizer/util/relnode.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/relnode.c,v 1.64 2004/12/31 22:00:23 pgsql Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/relnode.c,v 1.64.4.1 2007/07/31 19:54:10 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -461,7 +461,10 @@ build_joinrel_restrictlist(Query *root, * previous clauses (see optimizer/README for discussion). We detect * that case and omit the redundant clause from the result list. */ - result = remove_redundant_join_clauses(root, rlist, jointype); + result = remove_redundant_join_clauses(root, rlist, + outer_rel->relids, + inner_rel->relids, + jointype); list_free(rlist); |