From db147b348345288c7b47f9527fc107a9bb063ad7 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 2 May 2008 21:26:10 +0000
Subject: Allow the planner's estimate of the fraction of a cursor's rows that
 will be retrieved to be controlled through a GUC variable.

Robert Hell
---
 src/include/optimizer/planmain.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/include/optimizer/planmain.h')

diff --git a/src/include/optimizer/planmain.h b/src/include/optimizer/planmain.h
index 74ba5131cc6..0b46a173706 100644
--- a/src/include/optimizer/planmain.h
+++ b/src/include/optimizer/planmain.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.107 2008/04/17 21:22:14 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.108 2008/05/02 21:26:10 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -17,6 +17,10 @@
 #include "nodes/plannodes.h"
 #include "nodes/relation.h"
 
+/* GUC parameters */
+#define DEFAULT_CURSOR_TUPLE_FRACTION 0.1
+extern double cursor_tuple_fraction;
+
 /*
  * prototypes for plan/planmain.c
  */
-- 
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