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help / color / mirror / Atom feedFrom: Scott Marlowe <[email protected]>
To: Jerry Sievers <[email protected]>
Cc: Jeremy Finzel <[email protected]>
Cc: postgres performance list <[email protected]>
Subject: Re: Odd sudden performance degradation related to temp object churn
Date: Tue, 15 Aug 2017 09:51:24 -0600
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On Mon, Aug 14, 2017 at 4:16 PM, Jerry Sievers <[email protected]> wrote:
> Scott Marlowe <[email protected]> writes:
>
>> You do know that temp tables go into the default temp table space,
>> just like sorts, right?
>
> Not so.
>
> This system has no defined temp_tablespace however spillage due to
> sorting/hashing that exceeds work_mem goes to base/pgsql_tmp which we
> have symlinked out to a local SSD drive.
Which is also where temp tables are created.
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To: [email protected]
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Subject: Re: Odd sudden performance degradation related to temp object churn
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