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Re: Re: [COMMITTERS] pgsql: Augment WAL records for btree delete with GetOldestXmin() to

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>, pgsql-hackers@postgresql.org
Date: 2010-03-09T09:20:48Z
Lists: pgsql-hackers 
Simon Riggs wrote:
> XLOG_BTREE_DELETE records would not carry latestRemovedXid, this would
> be calculated by inspection of heap tuples.

You might still want to keep the conservative latestRemovedXid value in
the WAL record to avoid the extra work when latestRemovedXid alone allows.

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