Method with_new_children

datafusion/physical-expr/src/expressions/lambda.rs:177–191

(
        self: Arc<Self>,
        children: Vec<Arc<dyn PhysicalExpr>>,
    )

    }

    fn with_new_children(
        self: Arc<Self>,
        children: Vec<Arc<dyn PhysicalExpr>>,
    ) -> Result<Arc<dyn PhysicalExpr>> {
        let [body] = children.as_slice() else {
            return internal_err!(
                "LambdaExpr expects exactly 1 child, got {}",
                children.len()
            );
        };

        check_async_udf(body)?;

        Ok(Arc::new(Self::new(self.params.clone(), Arc::clone(body))))
    }

    fn fmt_sql(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "({}) -> {}", self.params.join(", "), self.body)