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Revise handling of index-type-specific indexscan cost estimation, per

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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).
This commit is contained in:
Tom Lane
2000-01-22 23:50:30 +00:00
parent 78845177bb
commit 71ed7eb494
30 changed files with 502 additions and 1113 deletions
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9
src/include/optimizer/paths.h
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@@ -7,7 +7,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: paths.h,v 1.37 2000/01/09 00:26:47 tgl Exp $
* $Id: paths.h,v 1.38 2000/01/22 23:50:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -16,9 +16,16 @@
#include "nodes/relation.h"
/* default GEQO threshold (default value for geqo_rels) */
#define GEQO_RELS 11
/*
* allpaths.c
*/
extern bool enable_geqo;
extern int geqo_rels;
extern RelOptInfo *make_one_rel(Query *root, List *rels);
/*