I tried to reproduce the case where 7.4 and 8.0 differ on the scope of volitile function with READ COMMITTED transactions. In an open transaction in read committed mode. Then I access the table and sum columns in a function. The results are always consistent between 7.4 and 8.0 and can see committed insert transactions by another session while the first transaction is open. Perhaps I'm missing something basic? Or the fix was back ported to 7.4? Prompt replies would be very helpful. --elein ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings