Bruce Momjian <pgman@candle.pha.pa.us> writes: > Was it a big benefit only for SMP machines?
Probably. I did some simple pgbench checks and found that the new code seemed no better than the old on a one-processor machine. However, as long as it's not worse for a uniprocessor, who cares? It would be good to try to get some more measurements to verify this. Never did trust pgbench ... regards, tom lane ---------------------------(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