diff --git a/lib/gitlab/cycle_analytics/events_fetcher.rb b/lib/gitlab/cycle_analytics/events_fetcher.rb
index bddaede53b7..742ee2f4fb6 100644
--- a/lib/gitlab/cycle_analytics/events_fetcher.rb
+++ b/lib/gitlab/cycle_analytics/events_fetcher.rb
@@ -111,6 +111,8 @@ module Gitlab
       end
 
       def extract_epoch(arel_attribute)
+        return arel_attribute unless Gitlab::Database.postgresql?
+
         Arel.sql(%Q{EXTRACT(EPOCH FROM (#{arel_attribute.to_sql}))})
       end