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elasticsearchelasticsearch-dsl

Check against list field in elastic search

I have field with value as list. For example

_id = 1
tags = ["IT", "mobile", "OS"]

_id = 2
tags = ["Mac", "fast", "laptop"]

_id = 3
tags = ["IT", "android", "OS"]

I got a list to check against the tag field.

sample = ["OS", "opera", "mobile"]

So docs with id 1 and id 3 should match when i query the tags using sample set.(Cause id 1 contains "OS" and "mobile" and id 3 conatins "OS".)

How can i do this on elastic search ?

Solution

  • Try the below boolean query with the "should" keyword.

    GET /_search
{
  "query": {
    "bool": {
      "should": [
        { "match": { "tags": "OS" }},
        { "match": { "tags": "opera" }},
        { "match": { "tags": "mobile" }} 
      ]
    }
  }
}

    Maybe an important note for further queries: If you plan to search and Object that contains ALL 3 values (but not 2 or just 1 tag) you should definitely read about nested objects in Elasticsearch first.