| From: | Neil Conway <neilc(at)samurai(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Jeff Davis <jdavis-pgsql(at)empires(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ARC patent |
| Date: | 2005-01-21 02:52:28 |
| Message-ID: | 1106275948.22946.266.camel@localhost.localdomain |
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| Lists: | pgsql-hackers |
On Fri, 2005-01-21 at 01:26 +0000, Simon Riggs wrote:
> Agree with everything apart from the idea that seq scan flooding isn't
> an issue. I definitely think it is.
I agree it's an issue, I just don't think it's an issue of sufficient
importance that it needs to be solved in the 8.0.x timeframe.
In any case, I'll take a look at developing a patch to replace ARC with
LRU. If it's possible to solve sequential flooding (e.g. via some kind
of hint-based approach) without too much complexity, we could add that
to the patch down the line.
-Neil
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