Re: wip: functions median and percentile - Mailing list pgsql-hackers

Dean Rasheed <dean.a.rasheed@gmail.com> writes:
> On 11 October 2010 18:37, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Sure it would: an estimate of 30K would keep the planner from using
>> hash aggregation.

> Not if work_mem was 10MB.

And?  If the memory requirement actually fits, you're in good shape.
        regards, tom lane