DO $$DECLARE
   this_version CONSTANT varchar := '00.01.026';
BEGIN
   PERFORM * FROM "DBVersion" WHERE version = this_version;
   IF FOUND THEN RETURN; END IF;

       ALTER TABLE public."Language"
            ADD COLUMN ordinal integer NOT NULL;

        INSERT INTO public."DBVersion" VALUES ('DMPDB', '00.01.026', '2023-11-29 12:00:00.000000+02', now(), 'ALter table Language.');

END$$;