From 71ed7eb4941ddb32700a51a8b8b3403eceeca4a9 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 22 Jan 2000 23:50:30 +0000
Subject: Revise handling of index-type-specific indexscan cost estimation, per
 pghackers discussion of 5-Jan-2000.  The amopselect and amopnpages estimators
 are gone, and in their place is a per-AM amcostestimate procedure (linked to
 from pg_am, not pg_amop).

---
 src/backend/optimizer/path/orindxpath.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

(limited to 'src/backend/optimizer/path/orindxpath.c')

diff --git a/src/backend/optimizer/path/orindxpath.c b/src/backend/optimizer/path/orindxpath.c
index f5813a27a8e..2831342fd88 100644
--- a/src/backend/optimizer/path/orindxpath.c
+++ b/src/backend/optimizer/path/orindxpath.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/orindxpath.c,v 1.33 2000/01/09 00:26:33 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/orindxpath.c,v 1.34 2000/01/22 23:50:15 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -215,21 +215,11 @@ best_or_subclause_index(Query *root,
 	foreach(ilist, indices)
 	{
 		IndexOptInfo *index = (IndexOptInfo *) lfirst(ilist);
-		long		npages;
-		Selectivity	selec;
 		Cost		subcost;
 
 		Assert(IsA(index, IndexOptInfo));
 
-		index_selectivity(root,
-						  rel,
-						  index,
-						  indexqual,
-						  &npages,
-						  &selec);
-
-		subcost = cost_index(rel, index,
-							 npages, selec,
+		subcost = cost_index(root, rel, index, indexqual,
 							 false);
 
 		if (first_run || subcost < *retCost)
-- 
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