Fix segmentation fault that an empty prepared statement could cause.

MasaoFujii · MasaoFujii · commit 857a5d6b59e0 · 2014-09-05T02:19:57.000+09:00
Back-patch to all supported branches.

Per bug #11335 from Haruka Takatsuka
diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c
@@ -2262,6 +2262,9 @@ GetCommandLogLevel(Node *parsetree)
 {
 	LogStmtLevel lev;
 
+	if (parsetree == NULL)
+		return LOGSTMT_ALL;
+
 	switch (nodeTag(parsetree))
 	{
 			/* raw plannable queries */

Original file line number	Diff line number	Diff line change
`@@ -2262,6 +2262,9 @@ GetCommandLogLevel(Node *parsetree)`
`2262`	`2262`	`{`
`2263`	`2263`	`LogStmtLevel lev;`
`2264`	`2264`
	`2265`	`+ if (parsetree == NULL)`
	`2266`	`+ return LOGSTMT_ALL;`
	`2267`	`+`
`2265`	`2268`	`switch (nodeTag(parsetree))`
`2266`	`2269`	`{`
`2267`	`2270`	`/* raw plannable queries */`