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Re-enable bushy plans. Vadim want them.

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This commit is contained in:
Bruce Momjian
1999-02-16 00:41:03 +00:00
parent cd550c7672
commit c82ca4c158
7 changed files with 23 additions and 71 deletions
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21
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 1.39 1999/02/15 05:49:59 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.40 1999/02/16 00:40:59 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -203,7 +203,6 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed)
rels_set_cheapest(joined_rels);
#ifdef NOT_USED
if (BushyPlanFlag)
{
/*
@ -214,7 +213,6 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed)
*/
add_rel_to_rel_joininfos(root, joined_rels, rels);
}
#endif
foreach(x, joined_rels)
{
@ -230,35 +228,28 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed)
#endif
}
#ifdef NOT_USED
if (BushyPlanFlag)
{
/*
* prune rels that have been completely incorporated into new
* join rels
*/
rels = del_rels_all_bushy_inactive(rels);
joined_rels = del_rels_all_bushy_inactive(rels);
/*
* merge join rels if then contain the same list of base rels
*/
joined_rels = merge_rels_with_same_relids(joined_rels, rels);
merge_rels_with_same_relids(joined_rels);
}
#endif
root->join_rel_list = rels = joined_rels;
}
#ifdef NOT_USED
Assert(BushyPlanFlag || length(rels) == 1);
#endif
Assert(length(rels) == 1);
#ifdef NOT_USED
if (BushyPlanFlag)
return get_cheapest_complete_rel(rels);
if (!BushyPlanFlag)
return lfirst(rels);
else
#endif
return lfirst(rels);
return get_cheapest_complete_rel(rels);
}
/*****************************************************************************