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Enable bushy plans by default.

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This commit is contained in:
Bruce Momjian
1999-02-18 05:26:34 +00:00
parent e78662d879
commit 65ccd1039a
7 changed files with 21 additions and 52 deletions
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10
src/backend/optimizer/path/allpaths.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.41 1999/02/18 00:49:17 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.42 1999/02/18 05:26:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -147,7 +147,6 @@ set_base_rel_pathlist(Query *root, List *rels)
* Find all possible joinpaths for a query by successively finding ways
* to join single relations into join relations.
*
* if BushyPlanFlag is set, bushy tree plans will be generated:
* Find all possible joinpaths(bushy trees) for a query by systematically
* finding ways to join relations(both original and derived) together.
*
@ -221,12 +220,7 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed)
}
Assert(BushyPlanFlag || length(rels) == 1);
if (!BushyPlanFlag)
return lfirst(rels);
else
return get_cheapest_complete_rel(rels);
return get_cheapest_complete_rel(rels);
}
/*****************************************************************************