Amit Kapila <amit.kapil...@gmail.com> writes: > I had couple of questions  related to that patch. See if you find > those as relevant?
I do not think those cases are directly relevant: you're talking about appendrels not single, unflattened RTE_SUBQUERY rels. In the subquery case, my view of how it ought to work is that Paths coming up from the subquery would be marked as not-parallel-safe if they contain references to unsafe functions. It might be that that doesn't happen for free, but my guess is that it would already work that way given a change similar to what I proposed. In the appendrel case, I tend to agree that the easiest solution is to scan all the children of the appendrel and just mark the whole thing as not consider_parallel if any of them have unsafe functions. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers