MG wrote:
> I have to improve the performance of the UPDATES and I was wondering why
> the UPDATEs need twice as long as the INSERTs.
IIRC, an UPDATE is a DELETE/INSERT combo. That's because the original
record still needs to be visible to other existing transactions (because
of MVCC). You can't change its data but need to create a new record
instead and mark the original as obsolete.
--
Alban Hertroys
alban@magproductions.nl
magproductions b.v.
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