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Re: extending relations more efficiently

From: Jeroen Vermeulen <jtv(at)xs4all(dot)nl>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: extending relations more efficiently
Date: 2012-05-02 11:16:12
Message-ID: 4FA1177C.4030405@xs4all.nl (view raw or flat)
Thread:
Lists: pgsql-hackers
On 2012-05-01 22:06, Robert Haas wrote:

> It might also be interesting to provide a mechanism to pre-extend a
> relation to a certain number of blocks, though if we did that we'd
> have to make sure that autovac got the memo not to truncate those
> pages away again.

Good point.  And just to check before skipping over it, do we know that 
autovacuum not leaving enough slack space is not a significant cause of 
the bottlenecks in the first place?


Jeroen

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