In Mysql it's possible to have a Timestamp column have the property "on 
update current_timestamp". (This updates the value of the field for each 
update.)

Auto-initialization and auto-update:
ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

http://dev.mysql.com/doc/refman/5.0/en/timestamp.html

Is this supported? I couldn't find any reference to this in the 
documentation, but I wanted to check in case I missed something.

Thanks
Joelle


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