1.ES对数组中元素个数进行聚合

https://stackoverflow.com/questions/49250267/how-to-get-array-count-of-nested-object-in-elastic-search

2.Kibana查询超时处理方法

https://stackoverflow.com/questions/51950640/elasticsearch-gateway-timeout-504

3.Elasticsearch和Clickhouse基本查询对比

https://my.oschina.net/taogang/blog/4965018

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1.可以将希腊文转成拉丁文的token插件

https://github.com/skroutz/elasticsearch-analysis-greeklish

2.利用grafana监控es

https://github.com/BigDataBoutique/elasticsearch-monitoring

3.spring连接es的几种方式

https://medium.com/better-programming/getting-started-with-elasticsearch-in-java-spring-boot-d981c32b60b

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1.通过配置自定义分析器扩展asciifolding分析器范围

https://stackoverflow.com/questions/44827673/search-with-asciifolding-and-utf-8-characters-in-elasticsearch

2.字段折叠用法示例

https://blog.csdn.net/ctwy291314/article/details/82759215

3.es7.11如何提升date-histogram的聚合速度

https://www.elastic.co/cn/blog/how-we-made-date-histogram-aggregations-faster-than-ever-in-elasticsearch-7-11

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