Case Statement in postgresql not supported

[erwin-frohsinn]

Describe the bug
The following is not parsed. Seems that the "case" statement is not supported.

create table pole.t_spiel (
    id               varchar(10)               not null
        constraint t_spiel_pk
            primary key,
    v_id             varchar(10) generated always as (
        CASE
            WHEN ((id)::text ~ '^\d+$'::text) THEN (lpad((id)::text, 2, '0'::text))::character varying
            ELSE id
            END) stored
);

To Reproduce
Steps to reproduce the behavior:
Parse with simple_ddl_parser

Desktop (please complete the following information):

• OS: Kubuntu
• Python 3.12
• Postgres