On Fri, Aug 18, 2017 at 1:47 PM, Peter J. Holzer <hjp-pg...@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.​

David J.

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