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authorTom Lane <tgl@sss.pgh.pa.us>2004-01-05 05:07:36 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2004-01-05 05:07:36 +0000
commit9091e8d1b233faf9994518fda7fcc171fddb53ac (patch)
tree572b200768bbfba3cfc121f1b4c12c79ab650d96 /src/backend/optimizer/plan/createplan.c
parentbf488a6842ef2bf43ab89337c8970971e84951da (diff)
downloadpostgresql-9091e8d1b233faf9994518fda7fcc171fddb53ac.tar.gz
postgresql-9091e8d1b233faf9994518fda7fcc171fddb53ac.zip
Add the ability to extract OR indexscan conditions from OR-of-AND
join conditions in which each OR subclause includes a constraint on the same relation. This implements the other useful side-effect of conversion to CNF format, without its unpleasant side-effects. As per pghackers discussion of a few weeks ago.
Diffstat (limited to 'src/backend/optimizer/plan/createplan.c')
-rw-r--r--src/backend/optimizer/plan/createplan.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c
index 906e1f7f257..d20b967b05c 100644
--- a/src/backend/optimizer/plan/createplan.c
+++ b/src/backend/optimizer/plan/createplan.c
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.161 2003/11/29 19:51:50 pgsql Exp $
+ * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.162 2004/01/05 05:07:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -643,6 +643,7 @@ create_unique_plan(Query *root, UniquePath *best_path)
plan = (Plan *) make_unique(my_tlist, plan, sortList);
}
+ /* Adjust output size estimate (other fields should be OK already) */
plan->plan_rows = best_path->rows;
return plan;