Merge pull request #3329 from efuss/fix-3311
[collectd.git] / src / postgresql_default.conf
index f905eb2..5079901 100644 (file)
@@ -38,9 +38,9 @@
 </Query>
 
 <Query queries>
-       Statement "SELECT sum(n_tup_ins) AS ins, \
-                       sum(n_tup_upd) AS upd, \
-                       sum(n_tup_del) AS del \
+       Statement "SELECT coalesce(sum(n_tup_ins), 0) AS ins, \
+                       coalesce(sum(n_tup_upd), 0) AS upd, \
+                       coalesce(sum(n_tup_del), 0) AS del \
                FROM pg_stat_user_tables;"
 
        <Result>
 </Query>
 
 <Query queries>
-       Statement "SELECT sum(n_tup_ins) AS ins, \
-                       sum(n_tup_upd) AS upd, \
-                       sum(n_tup_del) AS del, \
-                       sum(n_tup_hot_upd) AS hot_upd \
+       Statement "SELECT coalesce(sum(n_tup_ins), 0) AS ins, \
+                       coalesce(sum(n_tup_upd), 0) AS upd, \
+                       coalesce(sum(n_tup_del), 0) AS del, \
+                       coalesce(sum(n_tup_hot_upd), 0) AS hot_upd \
                FROM pg_stat_user_tables;"
 
        <Result>
 </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>
 </Query>
 
 <Query table_states>
-       Statement "SELECT sum(n_live_tup) AS live, sum(n_dead_tup) AS dead \
+       Statement "SELECT coalesce(sum(n_live_tup), 0) AS live, \
+               coalesce(sum(n_dead_tup), 0) AS dead \
                FROM pg_stat_user_tables;"
 
        <Result>
 
 <Query query_plans_by_table>
        Statement "SELECT schemaname, relname, \
-                       seq_scan AS seq, \
-                       seq_tup_read AS seq_tup_read, \
-                       idx_scan AS idx, \
-                       idx_tup_fetch AS idx_tup_fetch \
+                       coalesce(seq_scan, 0) AS seq, \
+                       coalesce(seq_tup_read, 0) AS seq_tup_read, \
+                       coalesce(idx_scan, 0) AS idx, \
+                       coalesce(idx_tup_fetch, 0) AS idx_tup_fetch \
                FROM pg_stat_user_tables;"
 
        <Result>