Re: Is there a way to run tables in RAM?

From: "Karen Hill" <karen_hill22(at)yahoo(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Is there a way to run tables in RAM?
Date: 2006-07-13 21:32:42
Message-ID: 1152826362.520022.41150@b28g2000cwb.googlegroups.com
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Roy Souther wrote:
> I would like to know if there is anyway to move a section of some tables
> into RAM to work on them.
>
> I have large table, about 700MB or so and growing. I also have a bizarre
> collection of queries that run hundreds of queries on a small section of
> this table. These queries only look at about 100 or so records at a time
> and they run hundreds of queries on the data looking for patterns. This
> causes the program to run very slowly because of hard drive access time.
> Some times it needs to write changes back to the records it is working
> with.
>
> Is there anyway that I can move a few hundred records of the table into
> RAM and work on it there, it would be much faster.
>
> Is there anyway to create a temporary table that will only exist in RAM
> and not be written to the hard drive? Or do temporary tables already do
> that?
>

If you are using linux, create a ramdisk and then add a Postgresql
tablespace to that.

regards,

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