On Sat, Nov 7, 2026 at 11:51 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> BTW, I have a different issue with this query: it seems like "x"
> is just ROW(a), not ROW(a, t2.b, t3.b). It's late and I'm frazzled,
> but isn't that wrong?
As Tender said, I think this is intended. The SELECT doc says:
If a join_using_alias name is specified, it provides a table alias for
the join columns. Only the join columns listed in the USING clause are
addressable by this name.
So x.* gives just (a).
- Richard