X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fpostgresql_default.conf;h=5b024ca14aca2976a4ef99e9c183a390a8891210;hb=eafb8003851eaea28dfe90b094fbd6be28a38c92;hp=61844a024aa648def479fcf3171c00c29d745d0e;hpb=074b4980bc75bea6826e6a38dcc6e193a721b2a8;p=collectd.git

diff --git a/src/postgresql_default.conf b/src/postgresql_default.conf
index 61844a02..5b024ca1 100644
--- a/src/postgresql_default.conf
+++ b/src/postgresql_default.conf
@@ -67,10 +67,14 @@
 </Query>
 
 <Query disk_io>
-	Query "SELECT sum(heap_blks_read), sum(heap_blks_hit), \
-			sum(idx_blks_read), sum(idx_blks_hit), \
-			sum(toast_blks_read), sum(toast_blks_hit), \
-			sum(tidx_blks_read), sum(tidx_blks_hit) \
+	Query "SELECT coalesce(sum(heap_blks_read), 0), \
+			coalesce(sum(heap_blks_hit), 0), \
+			coalesce(sum(idx_blks_read), 0), \
+			coalesce(sum(idx_blks_hit), 0), \
+			coalesce(sum(toast_blks_read), 0), \
+			coalesce(sum(toast_blks_hit), 0), \
+			coalesce(sum(tidx_blks_read), 0), \
+			coalesce(sum(tidx_blks_hit), 0) \
 		FROM pg_statio_user_tables;"
 
 	Column pg_blks heap_read
@@ -91,3 +95,5 @@
 	Column pg_db_size
 </Query>
 
+# vim: set ft=config :
+