ElasticSearch(7.2.2)-es之term的多种查询
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简介：⼿把⼿带你玩转es的⼏种查询
介绍
- 单词级别查询
- 这些查询通常⽤于结构化的数据，⽐如：number, date, keyword等，⽽不是对text。
- 也就是说，全⽂本查询之前要先对⽂本内容进⾏分词，⽽单词级别的查询直接在相应字段的反向索引中精确查找，单词级别的查询⼀般⽤于数值、⽇期等类型的字段上
- 准备⼯作
- 删除nba索引
- 新增nba索引
PUT nba
{
"mappings": {
"properties": {
"birthDay": {
"type": "date"
},
"birthDayStr": {
"type": "keyword"
},
"age": {
"type": "integer"
},
"code": {
"type": "text"
},
"country": {
"type": "text"
},
"countryEn": {
"type": "text"
},
"displayAffiliation": {
"type": "text"
},
"displayName": {
"type": "text"
},
"displayNameEn": {
"type": "text"
},
"draft": {
"type": "long"
},
"heightValue": {
"type": "float"
},
"jerseyNo": {
"type": "text"
},
"playYear": {
"type": "long"
},
"playerId": {
"type": "keyword"
},
"position": {
"type": "text"
},
"schoolType": {
"type": "text"
},
"teamCity": {
"type": "text"
},
"teamCityEn": {
"type": "text"
},
"teamConference": {
"type": "keyword"
},
"teamConferenceEn": {
"type": "keyword"
},
"teamName": {
"type": "keyword"
},
"teamNameEn": {
"type": "keyword"
},
"weight": {
"type": "text"
}
}
}
}- Term query 精准匹配查询(查找号码为23的球员)
POST nba/_search
{
"query": {
"term": {
"jerseyNo": "23"
}
}
}- Exsit Query 在特定的字段中查找⾮空值的⽂档(查找队名⾮空的球员)
POST nba/_search
{
"query": {
"exists": {
"field": "teamNameEn"
}
}
}- Prefix Query 查找包含带有指定前缀term的⽂档(查找队名以Rock开头的球员)
POST nba/_search
{
"query": {
"prefix": {
"teamNameEn": "Rock"
}
}
}- Wildcard Query ⽀持通配符查询，*表示任意字符，?表示任意单个字符(查找⽕箭队的球员)
POST nba/_search
{
"query": {
"wildcard": {
"teamNameEn": "Ro*s"
}
}
}- Regexp Query 正则表达式查询(查找⽕箭队的球员)
POST nba/_search
{
"query": {
"regexp": {
"teamNameEn": "Ro.*s"
}
}
}- Ids Query(查找id为1和2的球员)
POST nba/_search
{
"query": {
"ids": {
"values": [1, 2]
}
}
}举报
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