does not compare table checks

[ioistired]

1. in database 1: create table a(id integer primary key);
2. in database 2: `create table a(id integer primary key check (id > 0));'
3. compare 1 and 2

expected behavior: alter table a add constraint a_id_check check (id > 0); is included in the output, under -- TABLES AND COLUMNS
actual behavior: the -- TABLES AND COLUMNS section is empty (not -- tables and columns match)