Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Thu, Feb 19, 2009 at 1:20 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> [ back to planner stuff after a hiatus ]
> Well, as I wrote upthread:
What you're actually suggesting is modifying the executor to incorporate
the unique-fication logic into hashjoin and/or mergejoin. Maybe, but
that code is way too complex already for my taste (especially mergejoin)
and what we'd save is, hmm, four lines in the planner.
regards, tom lane