"rancpine cui" <rancpine@gmail.com> writes:
> So the method of calculating the bucket number can promise
> that all items in the bucket link list belong to ONE partition?
It's not that hard: the bucket number is some number of low-order bits
of the hash value, and the partition number is some smaller (or at most
equal) number of low-order bits of the hash value.
regards, tom lane
