Re: Constraint names using 'user namespace'? - Mailing list pgsql-hackers

Philip Warner <pjw@rhyme.com.au> writes:
> Just noticed this:

> pjw=# create table pk1(f1 integer, constraint zzz primary key(f1));
> NOTICE:  CREATE TABLE/PRIMARY KEY will create implicit index 'zzz' for
> table 'pk1'
> CREATE
> pjw=# create table zzz(f1 integer);
> ERROR:  Relation 'zzz' already exists

> Is there a good reason why the automatically created items do not have a
> 'pg_' in front of their names?

Not a good idea.  I think it should probably be pk1_zzz in this case.

If we do either, it will break the recently submitted pg_dump patch that
uses the index name as the constraint name.  I thought that patch was
wrongheaded anyway, and would recommend reversing it...
        regards, tom lane