Magnus Hagander <magnus@xxxxxxxxxxxx> writes: > We're not talking about the backends, we're talking about the backend > waiter threads whose sole purpose is to wait for a backend to die and > then raise a signal when it does. Oh, OK, I had not twigged to exactly what the threads were being used for. Never mind ... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match