Update field in a document based on the condition in Kibana/Elasticsearch

Question

I am trying to update particular field in document based on some condition. In general sql way, I want to do following.

Update index indexname
set name =  "XXXXXX"
where source: file and name :  "YYYYYY"

I am using below to update all the documents but I am not able to add any condition.

POST indexname/_update_by_query
{
  "query": { 
    "term": {
      "name": "XXXXX"
    }
  }
}

Here is the template, I am using:

{
  "indexname": {
    "mappings": {
      "idxname123": {
        "_all": {
          "enabled": false
        },
        "properties": {
          "name": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          },
          "date1": {
            "type": "date",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          },
          "source": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          }
        }
      }
    }
  }
}

Could someone guide me how to add condition to it as mentioned above for the source and name.

Thanks, Babu

Answer 1

You can make use of the below query to what you are looking for. I'm assuming name and source are your fields in your index.

POST <your_index_name>/_update_by_query
{
  "script": {
    "inline": "ctx._source.name = 'XXXXX'",
    "lang": "painless"
  },
  "query": {
    "bool": {
      "must": [
        {
          "term": {
            "name": {
              "value": "YYYYY"
            }
          }
        },
        {
          "term": {
            "source": {
              "value": "file"
            }
          }
        }
      ]
    }
  }
}

You can probably make use of any of the Full Text Queries or Term Queries inside the Bool Query for either searching/updating/deletions.

Do spend sometime in going through them.

Note: Make use of Term Queries only if your field's datatype is keyword

Hope this helps!