> > 2. locking should be easier if only the original heap page is involved. > > Yes, but multi-page update already happens now, so HOT is not > different on that point.
I was thinking about the case when you "pull back" a tuple, which seems to be more difficult than what we have now. Andreas PS: I think it is great that you are doing all this work and explaining it for us. Thanks. ---------------------------(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