Creating index on unique column results in not working unique constraint

[Dominik Żegleń]

Describe the bug

If you create index on a column that is defined as UNIQUE, it stops being unique if you add index to it. Defining it as CREATE UNIQUE INDEX fixes it but it behaves differently than postgres.

To Reproduce

create table a (
    id serial not null primary key,
    name varchar(32) not null unique
);

insert into a ("name") values ('foo');
CREATE INDEX a_name_index ON a USING btree (name);

insert into a ("name") values ('foo');
select * from a;

pg-mem version

2.6.13

[Krum Bakalsky]

This could be related to #333 - can you check if that PR fixes your problem?

[Olivier Guimbal]

this PR has been released as pg-mem@2.7.0, so feel free to close if that fixes your issue :)