关于Elasticsearch nested类型返回数据会比实际多的情况怎么解决？

查询语句：

{"from":0,"size":100,"search_after":[0],"query":{"bool":{"must":[{"term":{"sex":"女"}},{"range":{"age":{"gte":30,"lte":40}}},{"bool":{"should":[{"bool":{"must":[{"match_phrase":{"province":"辽宁省"}},{"match_phrase":{"city":"沈阳市"}}]}},{"bool":{"must":[{"match_phrase":{"province":"辽宁省"}},{"match_phrase":{"city":"抚顺市"}}]}}]}},{"nested":{"path":"orders","inner_hits":{"from":0,"size":100},"query":{"bool":{"must":[{"range":{"orders.bookingTime":{"gte":"2020-01-01 08:00:00","lte":"2021-08-13 23:59:59","format":"yyyy-MM-dd HH:mm:ss"}}},{"terms":{"orders.ticketId":[530535]}},{"terms":{"orders.bookingChannelId":[19]}}]}}}}]}},"sort":"_id","_source":{"excludes":["orders"]}}

查询结果是nested里面的条件满足一个其他的数据也会返回，通过inner_hits去处理，我想去处理复购的问题，就是通过inner_hits返回的数组长度如果大于就是复购，这个怎么去解决呢？