On 06.01.2012 20:26, Simon Riggs wrote:
The following patch (v4) introduces a new WAL record type that writes backup blocks for the first hint on a block in any checkpoint that has not previously been changed. IMHO this fixes the torn page problem correctly, though at some additional loss of performance but not the total catastrophe some people had imagined. Specifically we don't need to log anywhere near 100% of hint bit settings, much more like 20-30% (estimated not measured).
How's that going to work during recovery? Like in hot standby. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
