Type Alias WindowFunctionSimplification 

pub type WindowFunctionSimplification = Box<dyn Fn(WindowFunction, &SimplifyContext) -> Result<Expr>>;

Type alias for crate::udwf::WindowUDFImpl::simplify.

This closure is invoked with:

• window_function: WindowFunction with already simplified arguments
• info: SimplifyContext

It returns a simplified Expr or an error.

Aliased Type

pub struct WindowFunctionSimplification(/* private fields */);