On 10/29/2015 11:24 AM, Tom Lane wrote:
> Matthew Bellew writes:
>> I made have several users encounter performance problems, which all
>> seem to come down to this problem: multiplying selectivity estimates can
>> cause tuple estimates to grow very small very quickly, once the estimator
>> gets t
Matthew Bellew writes:
> I made have several users encounter performance problems, which all
> seem to come down to this problem: multiplying selectivity estimates can
> cause tuple estimates to grow very small very quickly, once the estimator
> gets to 1 row, the planner may choose plans that are
This related to a post in the general bugs forum, but I found this forum,
and
this seems more appropriate. This is my second attempt to post, I believe
the first attempt last week did not work, apologies if I'm duplicating.
http://comments.gmane.org/gmane.comp.db.postgresql.bugs/39011
I made ha
