diff --git a/public/app/plugins/datasource/postgres/meta_query.ts b/public/app/plugins/datasource/postgres/meta_query.ts
index a76e63a5438..42e1c08d05c 100644
--- a/public/app/plugins/datasource/postgres/meta_query.ts
+++ b/public/app/plugins/datasource/postgres/meta_query.ts
@@ -130,7 +130,7 @@ table_schema IN (
         break;
       }
       case 'group': {
-        query += " AND data_type IN ('text','char','varchar')";
+        query += " AND data_type IN ('text','character','character varying')";
         break;
       }
     }