Given a set of N people (numbered 1, 2, ..., N), we would like to split everyone into two groups of any size. Each person may dislike some other people, and they should not go into the same group. Formally, if dislikes[i] = [a, b], it means it is not
1. 当根据一个类型为text的字段idc进行聚合操作时,查询语句如下: { "aggs": { "top_10_states": { "terms": { "field": "idc" } } } } 会报错: "Fielddata is disabled on text fields by default. Set fielddata=true on [idc] in order to loa