ELK:match 的底层转换

在ES中，执行match搜索的时候，ES底层通常都会对搜索条件进行底层转换，来实现最终的搜索结果。如：

GET /student/java/_search

{

"query": {

"match": {

"remark": "java developer"

}

}

}

转换后是：

GET student/java/_search

{

"query": {

"bool": {

"should": [

{

"term": {

"remark": "java"

}

},

{

"term": {

"remark": {

"value": "developer"

}

}

}

]

}

}

}

GET /student/java/_search

{

"query": {

"match": {

"remark": {

"query": "java developer",

"operator": "and"

}

}

}

}

转换后是：

GET student/java/_search

{

"query": {

"bool": {

"must": [

{

"term": {

"remark": "java"

}

},

{

"term": {

"remark": {

"value": "developer"

}

}

}

]

}

}

}

GET student/java/_search

{

"query": {

"match": {

"remark": {

"query": "java architect assistant",

"minimum_should_match": "68%"

}

}

}

}

转换后为：

GET student/java/_search

{

"query": {

"bool": {

"should": [

{

"term": {

"remark": "java"

}

},

{

"term": {

"remark": "architect"

}

},

{

"term": {

"remark": "assistant"

}

}

],

"minimum_should_match": 2

}

}

}

建议，如果不怕麻烦，尽量使用转换后的语法执行搜索，效率更高。

如果开发周期短，工作量大，使用简化的写法。