On 7 Mar, Tom Lane wrote:
> Neil Conway <neilc@samurai.com> writes:
>> Tom Lane wrote:
>>> This is something we need to consider, but we'll need more evidence
>>> before making a choice. One thing that we have very little data about
>>> is how much difference it makes in the quality of planner choices.
>
>> Right, but is there a practical way to actually get this data?
>
> I haven't thought of one yet, but perhaps someone will have an idea.
If DBT-3 is an appropriate test, we can get those EXPLAIN ANALYZE
changes I have working in the STP version and queued up tests varying
the default_statistics_target parameter.
Mark