Re: Getting an out of memory failure.... (long email)

Tom,

We have been running pg_autovacuum on this entire DB so I did not even
consider that. I am running an analyze verbose now.

We should see about 82mm rows that will match the Filter: ((date_key >= 610)
AND (date_key <= 631))

I'll update in an hour or so.

--sean

On 9/27/04 11:49 PM, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Sean Shanny <shannyconsulting(at)earthlink(dot)net> writes:
>> -> Seq Scan on f_pageviews t1 (cost=0.00..11762857.88
>> rows=1 width=8)
>> Filter: ((date_key >= 610) AND (date_key <= 631))
>
> How many rows are actually going to match that filter condition? (The
> symptoms seem to indicate that the answer is "a whole lot", not "1".)
>
> I speculate that you're overdue for an ANALYZE on this table, and that
> the planner thinks this scan is going to yield no rows because the
> stats it has say there are no rows with date_key >= 610.
>
> regards, tom lane