On Apr 3, 2013, at 2:37 AM, Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> wrote:
> I'd expect one of the CREATE EXTENSION commands to succeed
> and the others to block until the transaction is committed,
> then to fail with 'extension "oracle_fdw" already exists'.
>
> If that is what happens, it's what I'd expect since
> extension names are unique (see the unique constraint on
> pg_extension).
Oh, they are not unique per-schema? I guess they are global to the database but then their objects are in the specified schema, then.
Thanks,
David