Add a comment about the initial default value of max_stack_depth.

tglsfdc · tglsfdc · commit f73b765182b3 · 2010-08-06T14:51:33.000Z
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.565 2010/07/22 01:22:33 rhaas Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.566 2010/08/06 14:51:33 tgl Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -1520,6 +1520,11 @@ static struct config_int ConfigureNamesInt[] =
 		16384, 1024, MAX_KILOBYTES, NULL, NULL
 	},
 
+	/*
+	 * We use the hopefully-safely-small value of 100kB as the compiled-in
+	 * default for max_stack_depth.  InitializeGUCOptions will increase it if
+	 * possible, depending on the actual platform-specific stack limit.
+	 */
 	{
 		{"max_stack_depth", PGC_SUSET, RESOURCES_MEM,
 			gettext_noop("Sets the maximum stack depth, in kilobytes."),

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@`
`10`	`10`	`* Written by Peter Eisentraut <peter_e@gmx.net>.`
`11`	`11`	`*`
`12`	`12`	`* IDENTIFICATION`
`13`		`- * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.565 2010/07/22 01:22:33 rhaas Exp $`
	`13`	`+ * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.566 2010/08/06 14:51:33 tgl Exp $`
`14`	`14`	`*`
`15`	`15`	`*--------------------------------------------------------------------`
`16`	`16`	`*/`
`@@ -1520,6 +1520,11 @@ static struct config_int ConfigureNamesInt[] =`
`1520`	`1520`	`16384, 1024, MAX_KILOBYTES, NULL, NULL`
`1521`	`1521`	`},`
`1522`	`1522`
	`1523`	`+ /*`
	`1524`	`+ * We use the hopefully-safely-small value of 100kB as the compiled-in`
	`1525`	`+ * default for max_stack_depth. InitializeGUCOptions will increase it if`
	`1526`	`+ * possible, depending on the actual platform-specific stack limit.`
	`1527`	`+ */`
`1523`	`1528`	`{`
`1524`	`1529`	`{"max_stack_depth", PGC_SUSET, RESOURCES_MEM,`
`1525`	`1530`	`gettext_noop("Sets the maximum stack depth, in kilobytes."),`