From: Bruce Momjian Date: Fri, 12 Feb 1999 02:37:52 +0000 (+0000) Subject: optimizer update X-Git-Tag: REL6_5~673 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=55d0465009b99d340c643dafae8a6a0846e45de1;p=thirdparty%2Fpostgresql.git optimizer update --- diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c index 23e3e8ee0c2..43db1bd267f 100644 --- a/src/backend/optimizer/util/pathnode.c +++ b/src/backend/optimizer/util/pathnode.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.31 1999/02/11 21:05:28 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.32 1999/02/12 02:37:52 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -211,19 +211,25 @@ better_path(Path *new_path, List *unique_paths, bool *is_new) new_path->path_cost <= path->path_cost)) { *is_new = false; - return new_path; + return path; } /* same keys, new is more expensive, stop */ - else if - ((better_key == 0 && better_sort == 0 && - new_path->path_cost >= path->path_cost) || + if ((better_key == 0 && better_sort == 0 && + new_path->path_cost >= path->path_cost) || /* old is better, and less expensive, stop */ (((better_key == 2 && better_sort != 1) || (better_key != 1 && better_sort == 2)) && new_path->path_cost >= path->path_cost)) { +#ifdef OPTDB_DEBUG + printf("better key %d better sort %d\n", better_key, better_sort); + printf("new\n"); + pprint(new_path); + printf("old\n"); + pprint(path); +#endif *is_new = false; return NULL; }