On Fri, Aug 18, 2017 at 1:47 PM, Peter J. Holzer <hjp-pgsql@hjp.at> wrote:
So apparently
columnname open-parenthesis tablename closed-parenthesis is a specific syntactic construct, but I can't find it documented anywhere.
The documentation linked to speaks mainly in terms of "composite types". A table IS a composite type (i.e., there is an implicit one of the same name) for these purposes.