Chris Travers <chris.travers@gmail.com> writes:
> I have found recently that tables in certain contexts seem to have a
> name pseudocolumn. I was wondering if there is any documentation as
> to what this is and what it signifies.
I/O conversion cast from composite type to string. You might find
this 9.1 patch informative:
http://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=543d22fc7423747afd59fe7214f2ddf6259efc62
There's also relevant discussion in the mailing lists shortly before
that.
regards, tom lane
