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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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7
src/backend/optimizer/path/indxpath.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.39 1999/02/08 04:29:08 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.40 1999/02/09 03:51:17 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1290,8 +1290,9 @@ index_innerjoin(Query *root, RelOptInfo * rel, List *clausegroup_list,
pathnode->path.pathtype = T_IndexScan;
pathnode->path.parent = rel;
pathnode->path.path_order.ordtype = SORTOP_ORDER;
pathnode->path.path_order.ord.sortop = index->ordering;
pathnode->path.path_order = makeNode(PathOrder);
pathnode->path.path_order->ordtype = SORTOP_ORDER;
pathnode->path.path_order->ord.sortop = index->ordering;
pathnode->path.keys = NIL; /* not sure about this, bjm 1998/09/21 */
pathnode->indexid = index->relids;