Re: Latest version of Hot Standby patch

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To: Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Latest version of Hot Standby patch
Date: 2008-12-19 08:59:31
Message-ID: 494B6273.9090204@enterprisedb.com
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Simon Riggs wrote:
> * corner case behaviour of backendids - bgwriter writes checkpoint WAL
> records. Has no backendid, but needs a slotid (possibly others)

Why does bgwriter need a slotid? It doesn't run any transactions.

> * slotids are assigned once and never changed, so allowing them to be
> used as array lookups directly

So are backend ids.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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