Re: Proposal of PITR performance improvement for 8.4.

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Koichi Suzuki <koichi(dot)szk(at)gmail(dot)com>
Cc: Gregory Stark <stark(at)enterprisedb(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Proposal of PITR performance improvement for 8.4.
Date: 2008-10-29 08:43:46
Message-ID: 1225269826.3971.286.camel@ebony.2ndQuadrant
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On Wed, 2008-10-29 at 09:55 +0900, Koichi Suzuki wrote:

> I'd like to hear some more about these. I'm more than happy to write
> all the code inside PG core to avoid overhead to create another
> process.

Having an external program can help earlier releases also, so I think
this is the right approach for now.

In next PG release we should bring this into core, along with streaming.

Interface would be better if it accepted
pg_readahead filename
or pg_readahead filename start-lsn

We don't always need a starting lsn.

--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support

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