A Window
is part of a window function specifying the window
over which the function operates. It is separated from the
WindowFunction
class because it also can be used separately on
some databases.
The options for this window. Options currently supported:
if specified, should be :all, :rows, or a String that is used literally. :all always operates over all rows in the partition, while :rows excludes the current row's later peers. The default is to include all previous rows in the partition up to the current row's last peer.
order on the column(s) given
partition/group on the column(s) given
base results on a previously specified named window
Set the options to the options given
# File lib/sequel/sql.rb, line 1640 def initialize(opts={}) @opts = opts end