diff --git a/sql/postgres_last_vacuum_analyze.sql b/sql/postgres_last_vacuum_analyze.sql
index b0b22727..a7205215 100644
--- a/sql/postgres_last_vacuum_analyze.sql
+++ b/sql/postgres_last_vacuum_analyze.sql
@@ -14,6 +14,8 @@
 --
 
 -- PostgreSQL vacuum and analyze info
+--
+-- Tested on PostgreSQL 12.3
 
 SELECT
   schemaname,