Re: [JBoss-dev] TODO: JBossCMP 1.1 FAST!

[danch]

Bill Burke wrote:

> BTW, running with tuned updates off is really, really, bad.  With tuned
> updates off, CMP will update your primary keys as well.  Updating primary
> keys is a crazy thing to do because the database needs to obtain write-locks
> on any indexes/constraints attached to that row/table. This can cause major
> deadlock problems fairly easily with multiple concurrent users.  Has the
> update of primary keys in CMP been removed?  I know there was some talk
> about it.
> 

If I hear no objections, I'll get rid of the code attempting to update 
the primary key columns.

-danch


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