Re: Bad Plan for Questionnaire-Type Query

David Blewett <david@dawninglight.net> writes:
> On Thu, May 7, 2009 at 4:31 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> as few as ten rows out, it'd likely switch to a different plan. �So the
>> So the question to ask is why the rowcount estimates are so abysmally bad.
>> You mentioned having tried to increase the stats targets, but without
>> seeing the actual stats data it's hard to speculate about this.

> How do I get that data for you?

Look into pg_stats for the rows concerning the columns used in the
query's WHERE and JOIN/ON clauses.

            regards, tom lane