inheritance. more.

create table master (
id serial,
mdn varchar(11),
meid varchar(18),
min varchar(11),
constraint mmm_master unique (mdn, meid, min)
);
insert into master(mdn, meid, min)
select mdn, meid, min from test_data where meid != '000000000000000000'
limit 10;

Everything works up to this point...

insert into master(mdn, meid, min)
select mdn, meid, min from test_data where meid != '000000000000000000'
limit 10;

And this fails, like I would expect it to.

create table slave (
deleted boolean default false
) inherits (master);

insert into slave(mdn, meid, min)
select mdn, meid, min from test_data where meid != '000000000000000000'
limit 10;
insert into slave(mdn, meid, min)
select mdn, meid, min from test_data where meid != '000000000000000000'
limit 10;

I now have 30 rows in the master table, with duplicates...