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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-08 23:02:05 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-08 23:02:05 +0000 |
| commit | e3a33a9a9f1a6afb80c9b83c1456c1a36fbcb70b (patch) | |
| tree | 9dc1b4c1acb8e24ecf82dc2536bdcc85c48774b0 /src/backend/optimizer/plan/planmain.c | |
| parent | 77c168a836e4bec87461107a84d7b7bcf2b58156 (diff) | |
Marginal hack to avoid spending a lot of time in find_join_rel during
large planning problems: when the list of join rels gets too long, make
an auxiliary hash table that hashes on the identifying Bitmapset.
Diffstat (limited to 'src/backend/optimizer/plan/planmain.c')
| -rw-r--r-- | src/backend/optimizer/plan/planmain.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/planmain.c b/src/backend/optimizer/plan/planmain.c index 1c87b24e4c6..50e1bc5ea8c 100644 --- a/src/backend/optimizer/plan/planmain.c +++ b/src/backend/optimizer/plan/planmain.c @@ -14,7 +14,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/plan/planmain.c,v 1.83 2005/06/06 04:13:35 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/planmain.c,v 1.84 2005/06/08 23:02:04 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -116,6 +116,7 @@ query_planner(PlannerInfo *root, List *tlist, double tuple_fraction, root->base_rel_array = (RelOptInfo **) palloc0(root->base_rel_array_size * sizeof(RelOptInfo *)); root->join_rel_list = NIL; + root->join_rel_hash = NULL; root->equi_key_list = NIL; /* |