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ElasticSearch 查询与 Java API 实践(下)

五、根据关键字分页搜索在存在大量数据时，一般我们进行查询都需要进行分页查询。例如：我们指定页码、并指定每页显示多少条数据，然后Elasticsearch返回对应页码的数据。1、使用from和size来进行分页在执行查询时，可以指定from（从第几条数据开始查起）和size（每页返回多少条࿰...

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ElasticSearch 查询与 Java API 实践(中)

三、父子关系数据建模nested object的建模，有个不好的地方，就是采取的是类似冗余数据的方式，将多个数据都放在一起了，维护成本就比较高每次更新，需要重新索引整个对象（包括跟对象和嵌套对象） ES 提供了类似关系型数据库中 Join 的实现。使用 Join 数据类型实现，可以通...

ElasticSearch 查询与 Java API 实践(上)

一、ElasticSearch文档分值_score计算底层原理1）boolean model根据用户的query条件，先过滤出包含指定term的docquery "hello world" ‐‐> hello / world / hello & world bool ‐‐> mu...

ElasticSearch-2.0.0集群安装配置与API使用实践

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