From cd7206b2abba74fd6e23fcfcf566afdb83ee613d Mon Sep 17 00:00:00 2001
From: "Vadim B. Mikheev" <vadim4o@yahoo.com>
Date: Thu, 24 Apr 1997 15:41:37 +0000
Subject: [PATCH] Enable to set _cpu_page_wight_ & _cpu_index_page_wight_ via
SET cost_heap(cost_index) TO ...
---
src/backend/tcop/variable.c | 55 ++++++++++++++++++++++++++++++++++++-
1 file changed, 54 insertions(+), 1 deletion(-)
diff --git a/src/backend/tcop/variable.c b/src/backend/tcop/variable.c
index 20006dc4b41..ca3339b0326 100644
--- a/src/backend/tcop/variable.c
+++ b/src/backend/tcop/variable.c
@@ -2,7 +2,7 @@
* Routines for handling of 'SET var TO', 'SHOW var' and 'RESET var'
* statements.
*
- * $Id: variable.c,v 1.5 1997/04/23 06:09:36 vadim Exp $
+ * $Id: variable.c,v 1.6 1997/04/24 15:41:37 vadim Exp $
*
*/
@@ -11,6 +11,11 @@
#include "postgres.h"
#include "miscadmin.h"
#include "tcop/variable.h"
+#include "utils/builtins.h"
+#include "optimizer/internal.h"
+
+extern Cost _cpu_page_wight_;
+extern Cost _cpu_index_page_wight_;
/*-----------------------------------------------------------------------*/
#if USE_EURODATES
@@ -64,6 +69,50 @@ static bool reset_null(const char *value)
return TRUE;
}
+static bool parse_cost_heap (const char *value)
+{
+ float32 res = float4in ((char*)value);
+
+ _cpu_page_wight_ = *res;
+
+ return TRUE;
+}
+
+static bool show_cost_heap ()
+{
+
+ elog (NOTICE, "COST_HEAP is %f", _cpu_page_wight_);
+ return TRUE;
+}
+
+static bool reset_cost_heap ()
+{
+ _cpu_page_wight_ = _CPU_PAGE_WEIGHT_;
+ return TRUE;
+}
+
+static bool parse_cost_index (const char *value)
+{
+ float32 res = float4in ((char*)value);
+
+ _cpu_index_page_wight_ = *res;
+
+ return TRUE;
+}
+
+static bool show_cost_index ()
+{
+
+ elog (NOTICE, "COST_INDEX is %f", _cpu_index_page_wight_);
+ return TRUE;
+}
+
+static bool reset_cost_index ()
+{
+ _cpu_index_page_wight_ = _CPU_INDEX_PAGE_WEIGHT_;
+ return TRUE;
+}
+
static bool parse_date(const char *value)
{
char tok[32];
@@ -149,6 +198,10 @@ struct VariableParsers
{
{ "datestyle", parse_date, show_date, reset_date },
{ "timezone", parse_null, show_null, reset_null },
+ { "cost_heap", parse_cost_heap,
+ show_cost_heap, reset_cost_heap },
+ { "cost_index", parse_cost_index,
+ show_cost_index, reset_cost_index },
{ NULL, NULL, NULL }
};
--
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