Robert Haas <robertmh...@gmail.com> writes: > On Tue, Jun 13, 2017 at 11:53 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: >> But it needs to be changeable, unless you like the proposition that we >> can never replan a query inside a trigger on the basis of new information >> about how big the transition table is. Even if you're okay with that >> particular restriction, the NamedTupleStore stuff is supposed to be >> flexible enough to accommodate other use-cases, and some of them will >> surely not be okay with an immutable estimate for the store's size.
> Hmm, true. But even if we extracted enrtuples from the > RangeTbleEntry, there wouldn't be any mechanism to actually trigger > such a replan, would there? You're just pointing out that there's a lot of unfinished work around this mechanism. I don't think anybody has claimed otherwise. regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers