If the deadlocks occur because different transactions actually try to
update the same rows concurrently, then this is an appropriate solution.

However I wonder if Gavin is getting bitten by foreign key deadlocks.
Is there any foreign key reference from the stats table to other tables?

Tom,

There are no foreign key references to or from this table as the updates to it consume a large % of the overall DB activity so I kept everything to a minimum.

I think Csaba has spotted the real problem but given that changing the order is not that easy and these stats are not mission critical I may just live with the odd deadlock. At least I understand why this is happening now.

Thanks,

Gavin

---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
     joining column's datatypes do not match

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