From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
---|---|
To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Thom Brown <thom(at)linux(dot)com>, Rob Wultsch <wultsch(at)gmail(dot)com>, PostgreSQL Advocacy <pgsql-advocacy(at)postgresql(dot)org> |
Subject: | Re: Unlogged vs. In-Memory |
Date: | 2011-05-05 19:10:48 |
Message-ID: | BANLkTinGA_V-kXvzCyfSxwXTweQW+GDuXw@mail.gmail.com |
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On Thu, May 5, 2011 at 7:59 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
>
>> I doubt that anyone wants the current behaviour.
>>
>> It's a very common thing for minor changes during beta to improve software.
>> I think we should be listening to users so that we round off the
>> features being delivered with a few tweaks.
>
> Actually, I find the Unlogged tables very useful as they are. I have at
> least 20 clients who store their "session" tables in PostgreSQL, as well
> as quite a few clients who use PostgreSQL as a backing store for a queue
> with ephemeral data. And the Unlogged tables are terrrific for doing ELT.
And at the moment we can't put them on a RAM disk, so we *must* incur
I/O for them, even though this could be easily avoided. And then it
actually would be the "in-memory table" that you suggested and that we
all want.
Deprogram the thought that I am trying to diss Unlogged tables, and
instead listen to the user feedback during Beta.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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