INSERT ... ON DUPLICATE KEY UPDATE with WHERE?

Posted by Raven on Stack Overflow See other posts from Stack Overflow or by Raven
Published on 2010-03-18T11:37:38Z Indexed on 2010/03/18 11:41 UTC
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mysql

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replication

Hi!

I'm doing a INSERT ... ON DUPLICATE KEY UPDATE but I need the update part to be conditional, only doing the update if some extra condition has changed.

However, WHERE is not allowed on this UPDATE. Is there any workaround for this?

I can't do combinations of INSERT/UPDATE/SELECT since this needs to work over a replication.

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