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Fix planning bug introduced in recent code reorganization for hashed

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aggregates: tuple_fraction has to be adjusted before passing it to
compare_fractional_path_costs().
This commit is contained in:
Tom Lane 2002-11-14 19:00:36 +00:00
parent 65fbc29956
commit 89caf56b86
1 changed files with 4 additions and 1 deletions
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5
src/backend/optimizer/plan/planner.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.127 2002/11/06 22:31:24 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.128 2002/11/14 19:00:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1257,6 +1257,9 @@ grouping_planner(Query *parse, double tuple_fraction)
sorted_path->parent->rows, sorted_path->parent->width);
sort_path.startup_cost += cheapest_path->total_cost;
sort_path.total_cost += cheapest_path->total_cost;
/* Convert absolute-count tuple_fraction into a fraction */
if (tuple_fraction >= 1.0)
tuple_fraction /= sorted_path->parent->rows;
if (compare_fractional_path_costs(sorted_path, &sort_path,
tuple_fraction) <= 0)
{