window functions that act on the frame instead of the whole partition.
The default framing option is <literal>RANGE UNBOUNDED PRECEDING</>,
which is the same as <literal>RANGE BETWEEN UNBOUNDED PRECEDING AND
- CURRENT ROW</>. This sets the frame to be all rows from the partition start
- up through the current row's last peer as specified by <literal>ORDER BY</>,
- or all partition rows if there is no <literal>ORDER BY</>.
+ CURRENT ROW</>. With <literal>ORDER BY</>, this sets the frame to
+ be all rows from partition start up through the current row's
+ last peer. Without <literal>ORDER BY</>, all partition rows are
+ included in the window frame.