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Major optimizer improvement for joining a large number of tables.

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This commit is contained in:
Bruce Momjian
1999-02-09 03:51:42 +00:00
parent be948af2e8
commit fe35ffe7e0
21 changed files with 277 additions and 139 deletions
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4
src/backend/optimizer/path/prune.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.24 1999/02/08 04:29:12 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.25 1999/02/09 03:51:21 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -109,7 +109,7 @@ prune_rel_paths(List *rel_list)
{
path = (Path *) lfirst(y);
if (!path->path_order.ord.sortop)
if (!path->path_order->ord.sortop)
break;
}
cheapest = (JoinPath *) prune_rel_path(rel, path);