Robert Haas <> writes:
> My suggestion is that we switch from using a List to marshal the data
> to using an ExtensibleNode.  An advantage of that is that we'd have
> some in-core test coverage for the ExtensibleNode stuff.  In theory it
> ought to be simpler and less messy, too, but I guess we'll find out.

Seems like a good idea, or at least one worth trying.

> Regardless of what approach we take, I disagree that this needs to be
> fixed in 9.6.

Agreed.  This is only a cosmetic issue, and it's only going to be visible
to a very small group of people, so we can leave it alone until 9.7.

(FWIW, now that we've put in the list_make5 macros, I'd vote against
taking them out, independently of what happens in postgres_fdw.
Somebody else will need them someday, or indeed might already be
using them in some non-core extension.)

                        regards, tom lane

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