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This article mainly talks about "what is the grammar of elasticsearch". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what are the elasticsearch grammars?"

Grammar

/ / /

Command

Query all indexes GET / _ cat/indices

GET / _ cat/indices?v create index PUT / user delete index DELETE / user add document delete document query document GET / user/_searchname field contains "Zhang San" or "Li Si"

GET / user/_search

{

"query": {

"match": {"name": "Zhang San Li Si"}

}

"from": 0

"size": 20

"_ source": ["name"]

}

Match all documents GET / user/_search

{

"query": {

"match_all": {}

}

} all name fields, including GET / user/_search of "Zhang San"

{

"query": {

"match_phrase": {"name": "Zhang San"}

}

} bool query

Of all the data, the name field simultaneously

GET / user/_search including "Zhang San" and "Li Si"

{

"query": {

"bool": {

"must": [

{"match": {"name": "Zhang San"}}

{"match": {"name": "Li Si"}}

]

}

}

} bool query

Of all the data, the name field

GET / user/_search containing "Zhang San" or "Li Si"

{

"query": {

"bool": {

"should": [

{"match": {"name": "Zhang San"}}

{"match": {"name": "Li Si"}}

]

}

}

} bool query

Of all the data, the name field simultaneously

GET / user/_search that does not include "Zhang San" or "Li Si"

{

"query": {

"bool": {

"must_not": [

{"match": {"name": "Zhang San"}}

{"match": {"name": "Li Si"}}

]

}

}

} bool query

Of all the data, the name field

Includes "Zhang San" but does not include "Li Si" GET / user/_search

{

"query": {

"bool": {

"must": [

{"match": {"name": "Zhang San"}}

]

"must_not": [

{"match": {"name": "Li Si"}}

]

}

}

} filter query

Of all the data, 10

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