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

Tom,

The Analyze did in fact fix the issue. Thanks.

--sean

On 9/27/04 11:54 PM, "Sean Shanny" <shannyconsulting(at)earthlink(dot)net> wrote:

> 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
>
>
>
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