So you have an index on the "other column" in table A? So something like: ``` create table A ( id integer primary key, oc integer ); create index idxA on A(oc); ``` is index idxA unique?
So you have an index on the "other column" in table A? So something like: ``` create table A ( id integer primary key, oc integer ); create index idxA on A(oc); ``` is index idxA unique?