ALTER TABLE IF EXISTS testschema."table_3_$%{}[]()&*^!@""'`\/#"
    ADD COLUMN "col__2_$%{}[]()&*^!@""'`\/#" time(4) with time zone DEFAULT now();

COMMENT ON COLUMN testschema."table_3_$%{}[]()&*^!@""'`\/#"."col__2_$%{}[]()&*^!@""'`\/#"
    IS 'test comment';
