优化代码SELECT SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' AND is_new_customer = 1 THEN 1 ELSE 0 END) AS new_customer_count, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' AND is_new_customer = 0 THEN 1 ELSE 0 END) AS old_customer_count, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' AND is_new_customer = 1 THEN payment_amount ELSE 0 END) AS new_customer_payment_amount, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' AND is_new_customer = 0 THEN payment_amount ELSE 0 END) AS old_customer_payment_amount, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN category = 'A' THEN 1 ELSE 0 END ELSE 0 END) AS category_A_customer_count, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN category = 'A' THEN payment_amount ELSE 0 END ELSE 0 END) AS category_A_payment_amount, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN category = 'B' THEN 1 ELSE 0 END ELSE 0 END) AS category_B_customer_count, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN category = 'B' THEN payment_amount ELSE 0 END ELSE 0 END) AS category_B_payment_amount, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN product_id = 'P1' THEN 1 ELSE 0 END ELSE 0 END) AS product_P1_customer_count, SUM(CASE WHEN order_date BETWEEN '2022-10-31' AND '2022-11-11' THEN CASE WHEN product_id = 'P1' THEN payment_amount ELSE 0 END ELSE 0 END) AS product_P1_payment_amount FROM orders WHERE (order_date BETWEEN '2022-10-31' AND '2022-11-11') OR (order_date BETWEEN '2021-10-31' AND '2022-10-30' AND order_date NOT IN (SELECT order_date FROM orders WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11')) OR (order_date BETWEEN '2021-11-12' AND '2022-10-30' AND order_date IN (SELECT order_date FROM orders WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11'))

这是一条比较复杂的 SQL 查询语句，其中包含了多个条件判断和聚合函数。这里提供一些可能的优化建议：

1. 使用 EXISTS 替代 IN 子查询

IN 子查询在某些场景下可能会导致性能问题，尤其是当被查询的列表比较大时。可以考虑使用 EXISTS 替代 IN 子查询。例如：

SELECT order_date 
FROM orders 
WHERE EXISTS (
  SELECT 1 
  FROM orders 
  WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11' 
    AND order_date = orders.order_date
)

2. 使用 UNION 替代 OR

OR 连接多个条件时，可能会导致执行计划的不稳定性和性能问题。可以考虑使用 UNION 连接多个查询，例如：

SELECT ... 
FROM orders 
WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11'
UNION
SELECT ... 
FROM orders 
WHERE order_date BETWEEN '2021-10-31' AND '2022-10-30' 
  AND NOT EXISTS (
    SELECT 1 
    FROM orders 
    WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11' 
      AND order_date = orders.order_date
  )
UNION
SELECT ... 
FROM orders 
WHERE order_date BETWEEN '2021-11-12' AND '2022-10-30' 
  AND EXISTS (
    SELECT 1 
    FROM orders 
    WHERE order_date BETWEEN '2022-10-31' AND '2022-11-11' 
      AND order_date = orders.order_date
  )

3. 避免重复计算

在查询语句中，有些条件可能会被重复计算，例如 is_new_customer 和 category。可以考虑在 SELECT 子句中使用子查询或者临时表来避免重复计算。

4. 使用索引

为了提高查询性能，可以在 order_date、is_new_customer、category 和 product_id 字段上创建索引。需要根据实际情况来选择索引类型和创建方式。