聚合查询

The aggregations API allows grouping by multiple fields, using sub-aggregations. Suppose you want to group by fields field1, field2 and field3:

{"aggs":{"agg1":{"terms":{"field":"field1"},"aggs":{"agg2":{"terms":{"field":"field2"},"aggs":{"agg3":{"terms":{"field":"field3"}}}}}}}}

Of course this can go on for as many fields as you'd like.

聚合API允许通过多个域的分组，使用子聚合。假设你想组的领域field1，field2和field3：

{"aggs":{"agg1":{"terms":{"field":"field1"},"aggs":{"agg2":{"terms":{"field":"field2"},"aggs":{"agg3":{"terms":{"field":"field3"}}}}}}}}

当然，这可能会为你会像许多领域。