es基本操作 + php + golang

php操作es
https://www.cnblogs.com/caiawo/p/15931090.html
https://blog.csdn.net/lxw1844912514/article/details/106687472

go操作es
https://www.codingsky.com/doc/2021/1/2/189.html
增
post http://192.168.133.131:9200/shopping/_doc
//{"title":"小米手机","category":"小米","images":"http://www.gulixueyuan.com/xm.jpg","price":4999}

put http://192.168.133.131:9200/test

put && get http://192.168.133.131:9200/user/_mapping
text-可以分词查询，keyword-不可以分词查询,index=true-可以用于查询字段
//{"properties":{"name":{"type":"text","index":true},"sex":{"type":"keyword","index":true},"tel":{"type":"keyword","index":false}}}

put http://120.24.89.191:9200/user
{"mappings": {"dynamic": false,"properties": {"uid": {"type": "integer"},"name": {"type": "text","analyzer": "ik_max_word"}}}}
删
delete http://192.168.133.131:9200/test

改
post http://192.168.133.131:9200/shopping/_update/1001
//{"doc":{"title":"华为手机"}}

查
查所有index
get http://192.168.133.131:9200/_cat/indices?v
查单条数据
get http://192.168.133.131:9200/shopping/_doc/1001
查index下的所有数据
get http://192.168.133.131:9200/shopping/_search
指定查询字段+分页+排序
{"query":{"match":{"title":"小米"}},"from":0,"size":2,"_source":["title"],"sort":{"price":{"order":"desc"}}}
并且条件
{"query":{"bool":{"must":[{"match":{"title":"小米"}},{"match":{"price":4999}}]}}}
或者条件+范围查询
{"query":{"bool":{"should":[{"match":{"title":"小米"}},{"match":{"title":"华为"}}],"filter":{"range":{"price":{"gt":4000}}}}}}
全文匹配+高亮关键字
{"query":{"match_phrase":{"category":"小"}},"highlight":{"fields":{"category":{}}}}
aggs-聚合操作 price_group-名称，随意起名 terms-分组 price-分组字段 size-过滤原始数据
{"aggs":{"price_group":{"terms":{"field":"price"}}},"size":0}
avg-平均值

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es修改mapping映射 https://blog.csdn.net/make_summer/article/details/129880492
es的mapping理解,分词器等等 https://www.cnblogs.com/yswsxf/p/17314715.html
es分词器下载 https://www.jianshu.com/p/0049d4affe86