ALTER TABLE testschema."table_3_$%{}[]()&*^!@""'`\/#"
    ALTER COLUMN "col__2_$%{}[]()&*^!@""'`\/#" TYPE time(6) with time zone ;
ALTER TABLE IF EXISTS testschema."table_3_$%{}[]()&*^!@""'`\/#"
    ALTER COLUMN "col__2_$%{}[]()&*^!@""'`\/#" SET NOT NULL;

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