James Coleman <jtc...@gmail.com> writes: >>> It seems like this might be somewhat related to the currently-moribund >>> patch to allow caching of the values of stable subexpressions from >>> one execution to the next.
> Is this the patch [1] you're thinking of? > [1]: > https://www.postgresql.org/message-id/flat/da87bb6a014e029176a04f6e50033cfb%40postgrespro.ru Yeah. I was just digging for that in the archives, and also came across this older patch: https://www.postgresql.org/message-id/CABRT9RBdRFS8sQNsJHxZOhC0tJe1x2jnomiz%3DFOhFkS07yRwQA%40mail.gmail.com which doesn't seem to have gone anywhere but might still contain useful ideas. regards, tom lane
