1.es相似查询机制 https://www.infoq.com/articles/similarity-scoring-elasticsearch/
2.es聚合过滤方法 https://stackoverflow.com/questions/65425695/elasticsearch-how-can-i-apply-a-filter-over-the-results-of-the-query-to-limit
3.es-php客户端 https://github.com/ruflin/Elastica
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本文地址：http://elasticsearch.cn/article/14196
本文地址：http://elasticsearch.cn/article/14196
