Method call_is_null

src/sql/src/plan/hir.rs:3868–3870

(self)

    }

    pub fn call_is_null(self) -> Self {
        self.call_unary(UnaryFunc::IsNull(func::IsNull))
    }

    /// Calls AND with the given arguments. Simplifies if 0 or 1 args.
    pub fn variadic_and(mut args: Vec<HirScalarExpr>) -> HirScalarExpr {