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Mysql replication and DEFAULT Timestamp

if you are using mysql replication to replicate data across data centres and using statement replication then dont use the DEFAULT and on UPDATE fields

last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

We recently did a simple RING replication across 3 datacentres to manage our user account identities and ran into this issue.  Due to this when the same statement is applied on other data centre the timestamp column gets a different value.  For now we would remove this and generate the time from Java so that we can use do a hash based consistency checker on replicated rows.

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