diff options
Diffstat (limited to 'src/backend/optimizer/plan/createplan.c')
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index 1a79c96dba4..1195024b5fc 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 1.247 2008/08/28 23:09:46 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.248 2008/09/05 21:07:29 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1545,7 +1545,8 @@ create_mergejoin_plan(PlannerInfo *root, /* * We assume the materialize will not spill to disk, and therefore - * charge just cpu_tuple_cost per tuple. + * charge just cpu_tuple_cost per tuple. (Keep this estimate in sync + * with similar ones in cost_mergejoin and create_mergejoin_path.) */ copy_plan_costsize(matplan, inner_plan); matplan->total_cost += cpu_tuple_cost * matplan->plan_rows; |