David Rowley <david.rowley@2ndquadrant.com> writes:
> On 12 March 2016 at 11:43, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> It seems like the major intellectual complexity here is to figure out
>> how to detect inner-side-unique at reasonable cost. I see that for
>> LEFT joins you're caching that in the SpecialJoinInfos, which is probably
>> fine. But for INNER joins it looks like you're just doing it over again
>> for every candidate join, and that seems mighty expensive.
> I have a rough idea for this, but I need to think of it a bit more to
> make sure it's bulletproof.
Where are we on this? I had left it alone for awhile because I supposed
that you were going to post a new patch, but it's been a couple weeks...
regards, tom lane
