On Fri, Nov 10, 2017 at 4:42 AM, Robert Haas <robertmh...@gmail.com> wrote: > 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.
Moved to next CF for extra reviews. -- Michael
