Array
(
    [err] => Array
        (
            [error] => ERROR:  invalid input syntax for uuid: ""
LINE 1: ...ct distinct id_smt from kelas_kuliah where id_sms='' and id_...
                                                             ^
            [no] => -1
        )

    [sql] => select distinct id_smt from kelas_kuliah where id_sms='' and id_mk='f226e726-c30f-856f-be32-915c94e1195e'  ORDER BY id_smt DESC
)