Re: Re: patch: fix performance problems with repated decomprimation of varlena values in plpgsql

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Robert Haas" <robertmhaas(at)gmail(dot)com>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com>, "Noah Misch" <noah(at)leadboat(dot)com>, "PostgreSQL Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Re: patch: fix performance problems with repated decomprimation of varlena values in plpgsql
Date: 2011-01-19 21:00:24
Message-ID: 4D36FC880200002500039818@gw.wicourts.gov
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Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> If we could solve the refcounting problem I think this would be a
> very significant win.

Instead of trying to keep a refcount, how about just evicting from
the buffer as needed based on LRU?

-Kevin

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