[英]return only _source data from elasticsearch query
如果您想过滤 _source 字段,您应该考虑将已经存在的 _source 参数与 filter_path 参数相结合,如下所示:
POST /library/book?refresh
{"title": "Book #1", "rating": 200.1}
POST /library/book?refresh
{"title": "Book #2", "rating": 1.7}
POST /library/book?refresh
{"title": "Book #3", "rating": 0.1}
GET /_search?filter_path=hits.hits._source&_source=title&sort=rating:desc
{
"hits" : {
"hits" : [ {
"_source":{"title":"Book #1"}
}, {
"_source":{"title":"Book #2"}
}, {
"_source":{"title":"Book #3"}
} ]
}
}
有关更多详细信息,请访问https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html
由于您已经在使用 filter_path,因此您已经只获得了源字段。
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