Method is_not_null

datafusion/expr/src/expr.rs:1941–1943

Return `IsNotNull(Box(self))

(self)

    /// Return `IsNotNull(Box(self))
    pub fn is_not_null(self) -> Expr {
        Expr::IsNotNull(Box::new(self))
    }

    /// Create a sort configuration from an existing expression.
    ///