From: | Grigory Smolkin <g(dot)smolkin(at)postgrespro(dot)ru> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: fun fact about temp tables |
Date: | 2016-08-05 15:02:08 |
Message-ID: | 2a8416bc-e538-29ca-cf68-056c247c9b21@postgrespro.ru |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Thank you for your answer.
But it`s temporary table so it`s equal to saying 'I don`t care about
this data' and I can get 'out of disk space' regardless of using
temporary tables.
What are we winning here?
On 08/05/2016 05:51 PM, Tom Lane wrote:
> Grigory Smolkin <g(dot)smolkin(at)postgrespro(dot)ru> writes:
>> I`ve noticed interesting aspect in temp tables working. It appears
>> postgres is trying to reserve space on disk for temp tables even before
>> temp_buffers overflow.
> Sure. Just like it reserves space for ordinary tables right away,
> long before there's any need to push the data out of shared_buffers.
> Otherwise, you might find yourself having to throw an "out of disk
> space" error after having already committed the relevant INSERTs.
>
> regards, tom lane
--
Grigory Smolkin
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
From | Date | Subject | |
---|---|---|---|
Next Message | Alex Ignatov | 2016-08-05 15:16:04 | Re: fun fact about temp tables |
Previous Message | Tom Lane | 2016-08-05 14:51:44 | Re: fun fact about temp tables |