I dont really know but...

Are you really sure TIMESTAMP is the SQL type you want and not DATETIME.  
TIMESTAMP has sub-second resolution and DATETIME second resolution.  It might 
be possible that Java is tracking sub-seconds and therefore sees these columns 
as needing updating.  The data might not be expressed as subseconds because 
java.lang.Date only has second resolution too, but that might not stop CMP 
tracking the fact and marking the object fields dirty.

I believe there to be other magic properties of the SQL type TIMESTAMP that 
simply dont apply to DATETIME.


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