From 82b4dd394f50f75a34d3ddc1c7d54b8d8fcace33 Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Sun, 4 Jan 2004 03:51:52 +0000
Subject: Merge restrictlist_selectivity into clauselist_selectivity by
 teaching the latter to accept either RestrictInfo nodes or bare clause
 expressions; and cache the selectivity result in the RestrictInfo node when
 possible.  This extends the caching behavior of approx_selectivity to many
 more contexts, and should reduce duplicate selectivity calculations.

---
 src/backend/nodes/copyfuncs.c | 3 ++-
 src/backend/nodes/outfuncs.c  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/backend/nodes')

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 7cc052182d5..29f55e0abb8 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -15,7 +15,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.271 2004/01/04 00:07:32 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.272 2004/01/04 03:51:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1170,6 +1170,7 @@ _copyRestrictInfo(RestrictInfo *from)
 	COPY_NODE_FIELD(clause);
 	COPY_SCALAR_FIELD(ispusheddown);
 	COPY_SCALAR_FIELD(canjoin);
+	COPY_BITMAPSET_FIELD(clause_relids);
 	COPY_BITMAPSET_FIELD(left_relids);
 	COPY_BITMAPSET_FIELD(right_relids);
 	COPY_NODE_FIELD(orclause);
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c
index e697196a287..3b8613fd19c 100644
--- a/src/backend/nodes/outfuncs.c
+++ b/src/backend/nodes/outfuncs.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.224 2004/01/04 00:07:32 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.225 2004/01/04 03:51:52 tgl Exp $
  *
  * NOTES
  *	  Every node type that can appear in stored rules' parsetrees *must*
@@ -1075,6 +1075,7 @@ _outRestrictInfo(StringInfo str, RestrictInfo *node)
 	WRITE_NODE_FIELD(clause);
 	WRITE_BOOL_FIELD(ispusheddown);
 	WRITE_BOOL_FIELD(canjoin);
+	WRITE_BITMAPSET_FIELD(clause_relids);
 	WRITE_BITMAPSET_FIELD(left_relids);
 	WRITE_BITMAPSET_FIELD(right_relids);
 	WRITE_NODE_FIELD(orclause);
-- 
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