Re: idea: global temp tables

From: "A(dot)M(dot)" <agentm(at)themactionfaction(dot)com>
To: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: idea: global temp tables
Date: 2009-04-27 21:51:16
Message-ID: 2E8BFBEB-9B84-4178-9D67-64A7B11CBE26@themactionfaction.com
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On Apr 27, 2009, at 5:39 PM, Dimitri Fontaine wrote:

> Hi,
>
> Le 27 avr. 09 à 23:32, A.M. a écrit :
>> When will postgresql offer "global" temporary tables with data
>> which are shared among sessions? Such tables are great for
>> transient data such as web session data where writing to the WAL is
>> a waste. (On DB startup, the tables would simply be empty.) We're
>> currently stuck with the memcached plugin which makes it impossible
>> to use database constructs such as foreign keys against the
>> temporary data.
>
>
> If using 8.3 you can SET LOCAL synchronous_commit TO off; for web
> session management transactions, it'll skip the WAL fsync'ing, which
> is already a good start.

That's pretty close, but it's not table specific and wouldn't let us
to reliably mix transient data changes with real data changes.

Cheers,
M
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