* Routines for handling of 'SET var TO', 'SHOW var' and 'RESET var'
* statements.
*
- * $Id: variable.c,v 1.8 1997/05/16 07:24:13 thomas Exp $
+ * $Id: variable.c,v 1.9 1997/05/20 10:31:42 vadim Exp $
*
*/
extern Cost _cpu_page_wight_;
extern Cost _cpu_index_page_wight_;
extern bool _use_geqo_;
+extern bool _use_right_sided_plans_;
/*-----------------------------------------------------------------------*/
#if USE_EURODATES
return TRUE;
}
+static bool parse_r_plans (const char *value)
+{
+
+ if ( strcasecmp (value, "on") == 0 )
+ _use_right_sided_plans_ = true;
+ else if ( strcasecmp (value, "off") == 0 )
+ _use_right_sided_plans_ = false;
+ else
+ elog(WARN, "Bad value for Right-sided Plans (%s)", value);
+
+ return TRUE;
+}
+
+static bool show_r_plans ()
+{
+
+ if ( _use_right_sided_plans_ )
+ elog (NOTICE, "Right-sided Plans are ON");
+ else
+ elog (NOTICE, "Right-sided Plans are OFF");
+ return TRUE;
+}
+
+static bool reset_r_plans ()
+{
+
+#ifdef USE_RIGHT_SIDED_PLANS
+ _use_right_sided_plans_ = true;
+#else
+ _use_right_sided_plans_ = false;
+#endif
+ return TRUE;
+}
+
static bool parse_cost_heap (const char *value)
{
float32 res = float4in ((char*)value);
{ "cost_index", parse_cost_index,
show_cost_index, reset_cost_index },
{ "geqo", parse_geqo, show_geqo, reset_geqo },
+ { "r_plans", parse_r_plans, show_r_plans, reset_r_plans },
{ NULL, NULL, NULL }
};