Re: Temp tables and LRU-K caching

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Mike Mascari <mascarm(at)mascari(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Temp tables and LRU-K caching
Date: 2002-09-23 16:39:06
Message-ID: 200209231639.g8NGd6a25234@candle.pha.pa.us
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Tom Lane wrote:
> Mike Mascari <mascarm(at)mascari(dot)com> writes:
> > Bruce wrote:
> > "Yes, someone from India has a project to test LRU-K and MRU for
> > large table scans and report back the results. He will
> > implement whichever is best."
> > Did this make it into 7.3?
>
> No, we never heard back from that guy. It is still a live topic though.
> One of the Red Hat people was looking at it over the summer, and I think
> Neil Conway is experimenting with LRU-2 code right now.
>
> > 2. Gavin Sherry had worked up a patch so that temporary
> > relations could be dropped automatically upon transaction
> > commit. Did any of those patches it make it?
>
> No they didn't; I forget whether there was any objection to his last try
> or it was just too late to get reviewed before feature freeze.

I see it going into the patch queue. Here is the full thread:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=200208272124.g7RLO1L20172%40candle.pha.pa.us&rnum=1&prev=/groups%3Fq%3Dcreate%2Btemp%2Btable%2Bon%2Bcommit%2Bgroup:comp.databases.postgresql.*%26hl%3Den%26lr%3D%26ie%3DUTF-8%26scoring%3Dd%26selm%3D200208272124.g7RLO1L20172%2540candle.pha.pa.us%26rnum%3D1

I don't see why it wasn't applied.

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