如何在FlinkSQL中定义滑动窗口(Sliding Window)和配置其属性？

SELECT 
  HOP_START(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE) AS window_start,
  SUM(amount) AS total_amount
FROM orders
GROUP BY HOP(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE);

CREATE TABLE sliding_orders (
  window_start TIMESTAMP(3),
  window_end TIMESTAMP(3),
  total_amount DOUBLE,
  WATERMARK FOR event_time AS event_time - INTERVAL '5' SECOND
) WITH (...);
INSERT INTO sliding_orders
SELECT 
  HOP_START(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE) AS window_start,
  HOP_END(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE) AS window_end,
  SUM(amount) AS total_amount
FROM orders
GROUP BY 
  HOP(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE),
  HOP_START(event_time, INTERVAL '5' MINUTE, INTERVAL '10' MINUTE);