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More optimization.

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This commit is contained in:
Bruce Momjian 1999-02-11 16:09:41 +00:00
parent d244df95db
commit 4ea3f728e9
1 changed files with 3 additions and 3 deletions
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6
src/backend/optimizer/util/pathnode.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.26 1999/02/11 14:59:02 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.27 1999/02/11 16:09:41 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -194,9 +194,9 @@ better_path(Path *new_path, List *unique_paths, bool *is_new)
* Replace pathkeys that match exactly, (1,2), (1,2). * Replace pathkeys that match exactly, (1,2), (1,2).
* Replace pathkeys (1,2) with (1,2,3) if the latter is not * Replace pathkeys (1,2) with (1,2,3) if the latter is not
* more expensive and replace unordered path with ordered * more expensive and replace unordered path with ordered
* path if it is not more expensive. * path if it is not more expensive. Favor sorted keys
* over unsorted keys in the same way.
*/ */
/* same keys, and new is cheaper, use it */ /* same keys, and new is cheaper, use it */
if ((longer_key == 0 && more_sort == 0 && if ((longer_key == 0 && more_sort == 0 &&
new_path->path_cost < path->path_cost) || new_path->path_cost < path->path_cost) ||