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Optimizer can now estimate selectivity of IS NULL, IS NOT NULL,

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IS TRUE, etc, with some degree of verisimilitude.  Split out
selectivity support functions from builtins.h into a new header
file selfuncs.h, so as to reduce the number of header files builtins.h
must depend on.  Fix a few missing inclusions exposed thereby.
From Joe Conway, with some kibitzing from Tom Lane.
This commit is contained in:
Tom Lane
2001-06-25 21:11:45 +00:00
parent c31545af27
commit 4d58a7ca87
9 changed files with 439 additions and 68 deletions
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3
src/backend/parser/analyze.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.190 2001/06/23 00:07:34 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.191 2001/06/25 21:11:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -33,6 +33,7 @@
#include "rewrite/rewriteManip.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/numeric.h"
#include "utils/relcache.h"
#include "utils/syscache.h"