On Thu, Nov 9, 2017 at 3:47 AM, Amit Kapila <amit.kapil...@gmail.com> wrote: > I think I understood your concern after some offlist discussion and it > is primarily due to the inheritance related check which can skip the > generation of gather paths when it shouldn't. So what might fit > better here is a straight check on the number of base rels such that > allow generating gather path in set_rel_pathlist, if there are > multiple baserels involved. I have used all_baserels which I think > will work better for this purpose.
Yes, that looks a lot more likely to be correct. Let's see what Tom thinks. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers