diff --git a/report/functions/clusterstat.sql b/report/functions/clusterstat.sql
index 3947a5f..7e16486 100644
--- a/report/functions/clusterstat.sql
+++ b/report/functions/clusterstat.sql
@@ -242,8 +242,8 @@ $$
   SELECT
     interval_num,
     sample_id,
-    bgwriter_stats_reset,
-    archiver_stats_reset
+    bgwriter_stats_reset::text,
+    archiver_stats_reset::text
   FROM
     (SELECT 1 AS interval_num, sample_id, bgwriter_stats_reset, archiver_stats_reset
       FROM cluster_stats_reset(sserver_id, start1_id, end1_id)
diff --git a/report/functions/dbstat.sql b/report/functions/dbstat.sql
index 5bda3dc..dcea911 100644
--- a/report/functions/dbstat.sql
+++ b/report/functions/dbstat.sql
@@ -354,7 +354,7 @@ $$
   SELECT
     interval_num,
     datname,
-    stats_reset,
+    stats_reset::text as stats_reset,
     sample_id
   FROM
     (SELECT 1 AS interval_num, datname, stats_reset, sample_id
diff --git a/report/functions/statements_checks.sql b/report/functions/statements_checks.sql
index 4a65f9a..c0ada81 100644
--- a/report/functions/statements_checks.sql
+++ b/report/functions/statements_checks.sql
@@ -26,12 +26,18 @@ RETURNS TABLE(
   stmt_cnt      integer,
   max_cnt       text
 )
---SET search_path=@extschema@
+SET search_path=@extschema@
 AS $$
-    SELECT sample_id,sample_time,stmt_cnt,prm.setting AS max_cnt
+    SELECT
+      sample_id,
+      sample_time,
+      stmt_cnt,
+      prm.setting AS max_cnt
     FROM samples
         JOIN (
-            SELECT sample_id,sum(statements) stmt_cnt
+            SELECT
+              sample_id,
+              sum(statements)::integer AS stmt_cnt
             FROM sample_statements_total
             WHERE server_id = sserver_id
               AND ((start_id, end_id) = (0,0) OR sample_id BETWEEN start_id + 1 AND end_id)