| Class | Sequel::SQL::WindowFunction | 
| In: | lib/sequel/sql.rb | 
| Parent: | GenericExpression | 
A WindowFunction is a grouping of a function with a window over which it operates.
| function | [R] | The function to use, should be an SQL::Function. | 
| window | [R] | The window to use, should be an SQL::Window. |