Robert Haas <robertmhaas@gmail.com> writes:
> Cool, thanks for the review. I'm not quite confident that we've found
> all of the bugs here yet, but I think we're moving in the right
> direction.
I guess the real question here is why isn't Gather Merge more like
Append and MergeAppend? That is, why did you complicate matters
by making it projection capable? That seems like a pretty random
decision from here.
regards, tom lane