From: Bernd Zeimetz <bernd@bzed.de>
Date: Fri, 2 Sep 2016 11:23:40 +0000 (+0200)
Subject: pgsql plugin: avoid parsing error from query_plans
X-Git-Tag: collectd-5.6.1~1^2~3^2~1
X-Git-Url: https://git.tokkee.org/?p=collectd.git;a=commitdiff_plain;h=e73ae9a16ebf982dc5712a8e4f4d4f864187e08a

pgsql plugin: avoid parsing error from query_plans

idx_scan/idx_tup_fetch can be NULL, avoid trying to parse that into a number.

This should fix #1905.
---

diff --git a/src/postgresql_default.conf b/src/postgresql_default.conf
index f905eb2a..7ec971a2 100644
--- a/src/postgresql_default.conf
+++ b/src/postgresql_default.conf
@@ -159,10 +159,10 @@
 </Query>
 
 <Query query_plans>
-	Statement "SELECT sum(seq_scan) AS seq, \
-			sum(seq_tup_read) AS seq_tup_read, \
-			sum(idx_scan) AS idx, \
-			sum(idx_tup_fetch) AS idx_tup_fetch \
+	Statement "SELECT coalesce(sum(seq_scan), 0) AS seq, \
+			  coalesce(sum(seq_tup_read), 0) AS seq_tup_read, \
+			  coalesce(sum(idx_scan), 0) AS idx, \
+			  coalesce(sum(idx_tup_fetch), 0) AS idx_tup_fetch \
 		FROM pg_stat_user_tables;"
 
 	<Result>