Re: WIP: patch to create explicit support for semi and anti joins - Mailing list pgsql-hackers

From Kevin Grittner
Subject Re: WIP: patch to create explicit support for semi and anti joins
Date
Msg-id 48A428EF.EE98.0025.0@wicourts.gov
Whole thread Raw
In response to Re: WIP: patch to create explicit support for semi and anti joins  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: WIP: patch to create explicit support for semi and anti joins  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
>>> Tom Lane <tgl@sss.pgh.pa.us> wrote: 
> I can't yet *prove* that I can get better estimates
> with the added info, but if not, that just means I need to rethink
what
> to pass down exactly.
I'll see if I can do some testing here to confirm plan improvements
and check estimate accuracy.  This is only on the trunk, not any
stable branches?  I assume that effort should wait until you have a
candidate for the estimate improvements?
-Kevin


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