kinaba Dev Tool中对es(elasticSearch)进行增删改查
一、查询操作
查询语句基本语法
以下语句类似于mysql的: select * from xxx.yyy.topic where 条件1,条件2,...条件N
GET xxx.yyy.topic/logs/_search {
"query": {
"bool": {
这里面是限制条件,不写则查所有数据
可以包含单个或多个限制条件
}
}
}
select * from xxx.yyy.topic where 条件1
GET xxx.yyy.topic/logs/_search
{
"query": {
这里只能是单个条件
}
}
详细说明:
GET xxx.yyy.topic/logs/_search中
xxx.yyy.topic 对应字段_index 即索引字段 相当于mysql中的数据库名称
logs 对应字段_type 相当于mysql中的表名
_id 相当于mysql中的主键
_search 这表示执行查询操作
_source 相当于mysql表中的列的集合
bool体中是一个或多个基本查询的组合,可在bool里面使用以下参数:
must 文档中必须包含must后的条件
must_not 文档中必须不包含must_not后的条件
should 满足should后的任何一个条件
filter filter后跟过滤条件
1、select * from xxx.yyy.topic
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must": {
"match_all": {}
}
} }
}
或者
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {}
}
}
或者
GET xxx.yyy.topic/logs/_search
{
"query": {
"match_all": {}
}
}
如果在index下只有一种_type,则在GET中可以不带_type
GET xxx.yyy.topic/_search
{
"query": {
"bool": {}
}
}
2、 select * from xxx.yyy.topic where login = 'BigFaceCat' and pwd='123'
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"login.keyword": "BigFaceCat"
}
},
{
"match": {
"pwd.keyword": "123"
}
}
]
}
}
}
3、查询语句 select * from xxx.yyy.topic where update_time > 1591200000000 and update_time<1591200000000
select * from xxx.yyy.topic where update_time between 1591200000000 and 1591200000000
GET xxx.yyy.topic/logs/_search
{
"query":{
"bool":{
"must":[
{
"range":{
"update_time":{
"gte":1591200000000,
"lte":1591362000000
}
}
}
]
}
}
}
GET xxx.yyy.topic/logs/_search
{
"query":{
"bool":{
"filter":[
{
"range":{
"update_time":{
"gte":1591200000000,
"lte":1591362000000
}
}
}
]
}
}
}
gte :表示 >=
lte : 表示<=
gt : 表示>
lt : 表示<
4、查询语句 select * from xxx.yyy.topic where update_time > 1591200000000 and update_time<1591200000000 and login='BigFaceCat'
{
"query":{
"bool":{
"must":[
{
"range":{
"update_time":{
"gte":1591200000000,
"lte":1591362000000
}
}
},
{
"match":{
"login.keyword":"BigFaceCat"
}
}
]
}
}
}
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must":{ "match":{"login.keyword":"BigFaceCat"}},
"filter": {
"range": {
"update_time": {
"gte": 1591200000000,
"lte": 1591362000000
}
}
} }
}
}
5、查询语句 select * from xxx.yyy.topic where login='BigFaceCat' or login='LittlteFaceCat'
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"should": [
{ "match": { "login.keyword": "BigFaceCat" }},
{ "match": { "login.keyword": "LittlteFaceCat"}}
]
}
}
}
6、select * from xxx.yyy.topic where login is null
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must_not": {
"exists": {
"field": "login"
}
}
}
}
}
7、select * from xxx.yyy.topic where login is not mull
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must": {
"exists": {
"field": "login"
}
}
}
}
}
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"filter": {
"exists": {
"field": "login"
}
}
}
}
}
8、select * from xxx.yyy.topic where login in ('BigFaceCat','LittlteFaceCat')
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must": [
{
"match": { "login.keyword": "BigFaceCat" }
},
{
"match": { "login.keyword": "LittlteFaceCat" } }
]
}
}
}
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool":{
"filter":{
"terms":{ "login":["BigFaceCat","LittleFaceCat"]}
}
}
}
}
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool":{
"should": [
{ "term":{ "login":"BigFaceCat"} },
{ "term":{ "login":"LittleFaceCat"} }
]
}
}
}
terms : 后面可跟多个值
term : 后面只能有一个值
9、select call_id , record_id from xxx.yyy.topic where _id = 'eecd25747'
GET xxx.yyy.topic/logs/_search
{
"_source": ["call_id","record_id"],
"query": {
"match": { "_id": "eecd25747a"}
} }
select call_id , record_id from xxx.yyy.topic where login='BigFaceCat' and pwd='123'
GET xxx.yyy.topic/logs/_search
{
"_source": ["call_id","record_id"],
"query": {
"bool": {
"must": [
{
"match": {
"login.keyword": "BigFaceCat"
}
},
{
"match": {
"pwd.keyword": "123"
}
}
]
}
}
}
10、聚合查询 select sum( talk_duration) as sum_of_talkDuration from xxx.yyy.topic
GET xxx.yyy.topic/logs/_search
{
"aggs": {
"sum_of_talkDuration":{
"sum":{
"field": "talk_duration"
}
} }
}
select sum( talk_duration) as sum_of_talkDuration from xxx.yyy.topic where end_time is not null
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {
"must": [
{"exists":{"field":"end_time"}}
]
}
}, "aggs": {
"sum_of_talkDuration":{
"sum":{
"field": "talk_duration"
}
} }
}
11、select SUM( DISTINCT talk_duration) as sum_of_diffTalkDuration from xxx.yyy.topic
GET xxx.yyy.topic/logs/_search
{
"size":0,
"aggs": {
"sum_of_diffTalkDuration":{
"cardinality":{
"field": "talk_duration"
}
} }
}
12、求平均值 SELECT AVG( record_duration ) as avg_of_talkDurtion FROM xxx.yyy.topic
GET xxx.yyy.topic/logs/_search
{
"size":0,
"aggs": {
"avg_of_talkDuration":{
"avg":{
"field": "talk_duration"
}
}
}
13、求最大值 SELECT MAX( record_duration ) as max_of_talkDurtion FROM xxx.yyy.topic
GET xxx.yyy.topic/logs/_search
{
"size":0,
"aggs": {
"max_of_talkDuration":{
"max":{
"field": "talk_duration"
}
}
}
14、对查询结果排序 select * from xxx.yyy.topic order by talk_duration desc
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": { }
}, "sort": [{ "talk_duration": "desc" }] }
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": {}
},
"sort": [
{ "talk_duration": {"order": "desc"} }
] }
desc : 降序排序
asc : 升序排序
15、分页查询
GET xxx.yyy.topic/logs/_search
{
"query": {
"bool": { }
},
"sort": [{ "talk_duration": {"order": "desc"} }],
"from": 2,
"size": 3 }
from : 起始页
size : 按size条记录分页
如上查询:按每页3条记录分页,返回第2页
16、通过主键_id查询 select * from xxx.yyy.topic where _id = 'AXKRp4hXdhuuEZQaKj7n'
GET xxx.yyy.topic/logs/AXKRp4hXdhuuEZQaKj7n
17、通过主键_id查询某些字段 select phone_number,system_code, extension from xxx.yyy.topic where _id='AXKRp4hXdhuuEZQaKj7'
GET xxx.yyy.topic/logs/AXKRp4hXdhuuEZQaKj7n?_source=phone_number,system_code,extension
二、修改操作
1、通过查询条件来限定修改范围的方式
update xxx.yyy.topic set result='[{\"aWord\":\"1哈哈哈哈\",\"count\":1,\"locations\":[\"00:05-00:08\",\"01:01-01:02\"]}]'
where update_time >= 1591200000000 and update_time <= 1591362000000
json串中带有特殊字符",需要用\进行转义
POST xxx.yyy.topic/logs/_update_by_query
{
"query": {
"bool": {
"must": [
{
"range": {
"update_time": {
"gte": 1591200000000,
"lte": 1591362000000
}
}
}
]
}
},
"script": {
"source": "ctx._source['result']='[{\"aWord\":\"1哈哈哈哈\",\"count\":1,\"locations\":[\"00:05-00:08\",\"01:01-01:02\"]}]'"
}
}
2、用主键作作为条件修改的方式
update xxx.yyy.topic set result='[{\"aWord\":\"1哈哈哈哈\",\"count\":1,\"locations\":[\"00:05-00:08\",\"01:01-01:02\"]}'
where _id='xx-b2fc-43ca-afe7-77e3ff406ff9'
注意:json中带有特殊字符,需要两个"""包起来
POST xxx.yyy.topic/logs/xx-b2fc-43ca-afe7-77e3ff406ff9/_update
{
"doc":{
"result": """[{"aWord":"1哈哈哈哈","count":1,"locations":["00:05-00:08","01:01-01:02"]}]"""
}
}
POST xxx.yyy.topic/logs/xx-b2fc-43ca-afe7-77e3ff406ff9/_update
{ "doc":{
"result": "哈哈哈" }
}