While I was out at the MySQL conference last week, I heard that one of
the forthcoming MySQL features is "time-delayed replication":

http://forge.mysql.com/worklog/task.php?id=344

That is, a standby configured such that replay lags a prescribed
amount of time behind the master.

This seemed easy to implement, so I did.  Patch (for 9.2, obviously) attached.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Attachment: time-delayed-standby.patch
Description: Binary data

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