Dennis Haney <[EMAIL PROTECTED]> writes: >> Joining {b,c} to {a} does not meet any of those four allowed cases. >> > Exactly my point... So why ever bother creating the {b,c} node which is > legal by the above definition?
We don't, because there is no such join clause. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings