Re: WAL log compatibility between 9.1 and 9.3

From: Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at>
To: "Andy Lau *EXTERN*" <alau(at)infer(dot)com>, "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org>
Subject: Re: WAL log compatibility between 9.1 and 9.3
Date: 2014-08-13 08:04:55
Message-ID: A737B7A37273E048B164557ADEF4A58B17D284A3@ntex2010i.host.magwien.gv.at
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Andy Lau wrote:
> I'm upgrading my PostgreSQL 9.1.14 system to 9.3.5 and was wondering if WAL files are compatible
> between the two versions. I have WAL logs in AWS S3 and want to know if I need to separate the
> existing logs from the new logs after the upgrade.

WAL is not compatible between different major versions.

It is a good idea to separate WAL archives from before and after the upgrade.

Yours,
Laurenz Albe

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