write down,forget
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elasticsearch里的search_type

<Category: Diving Into ElasticSearch> 查看评论

elasticsearch里面的search_type共有如下几种:
The type of the search operation to perform. Can be
dfs_query_then_fetch,
dfs_query_and_fetch,
query_then_fetch,
query_and_fetch. 【removed,since:http://groups.google.com/group//browse_thread/thread/7aa5ea823afb499/d9e3cf3a1e1f6964】
Defaults to query_then_fetch.

form google group:“
You get proper sorted results when you use query_then_fetch (across all top
“size” results), if you use query_and_fetch, then each shard return the size
requested hits, and then they are sorted between them.

直接看代码里面吧,里面都有注释。

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