[ES from entry to actual combat] Seven, full-text search-ElasticSearch-introduction-put&post modify data

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4. Update documentation

Update operation	Parameters or conclusion
POST customer/external/1/_update	{ “doc”: { “name”: “Jane Doe”, “age”: 20 } }
Or POST customer/external/1	{ “name”: “John Nash2” }
Or PUT customer/external/1	{ “name”: “John Nash3” }
different	The POST operation will compare the source document data. If it is the same, there will be no operation. The document version and _seq_no will not increase; the PUT operation will always save the data and increase the version version; if the metadata is the same with _update, no operation will be performed.
Watch the scene	For large concurrent updates, there is no update; for large concurrent queries occasionally update, with update; compare updates, recalculate the distribution rules.
Update and add attributes POST customer/external/1/_update	{ “doc”: { “name”: “Jane Doe”, “age”: 20 }}
Update and add attributes PUT&POST customer/external/1	{ “name”: “John Nash2”, “age”: 40 }

Used with _updatethe post data update request using the post method postman transmission http://192.168.56.10:9200/customer/external/1/_updaterequest transmission parameters:

{
    
    
     "doc": {
    
    
          "name": "John Nash"
     }
}

Send request may get the following result, you can see the update was successful:

send a request again, you can see if the same data, compared to the original data, the same as the original would do nothing _version, _seq_nowill not change:

Use 不with _updatea post request to update the data, using the post method postman send http://192.168.56.10:9200/customer/external/1request
parameters above, you can see, each click will be updated data, data validation will not do:

Note that for updates without _update, you can use it when passing parameters

{
     
     
     "doc": {
     
     
          "name": "John Nash",
          "age":40
     }
}

You can also use:

{
     
     
     "name": "John Nash2",
     "age": 40
}

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reference:

Elasticsearch Reference

elastic

Getting started with the full-text search engine Elasticsearch