Adding a multifield with analyzer in existing field in existing index

Question

I have an existing index in elasticsearch (version : 5.1.1) which has some documents index in it. A mapping in the index (say hardware) has a a field as follows :

"biosSerialNumber" :{
     "type":"keyword"
}

I want to add a field to it with analyzer as follows : "biosSerialNumber" :{ "type":"keyword", "fields":{ "suffix":{ "type":"text", "analyzer":"abc_analyzer" } } }

"abc_analyzer" analyzer already exists in the index settings. Is it allowed? I have tried doing this using PUT commands which I have used to add new fields in the index. But it does not seem to work.

Getting this error :

{ "error": { "root_cause": [ { "type": "mapper_parsing_exception", "reason": "Mapping definition for [fields] has unsupported parameters: [analyzer : suffix_match_analyzer]" } ], "type": "mapper_parsing_exception", "reason": "Mapping definition for [fields] has unsupported parameters: [analyzer : suffix_match_analyzer]" }, "status": 400 }

Btw, cause for the error mentioned above is that, I was trying to add an analyzer to a 'keyword' field, which is not allowed (for the obvious reason that keyword type is not analyzed)!. This was a sample try-out. But the first question still remains. — User3518958
– User3518958, Commented Sep 30, 2019 at 11:03

User3518958 · Accepted Answer · 2019-09-30 11:16:39Z

0

As mentioned in the comment, the error was because I was trying to add an analyzer to a 'keyword' field, which is not allowed (for the obvious reason that keyword type is not analyzed)!. This was a sample try-out.

Also, now after running a PUT request to :

<elshost>/<index-name>/_mapping/<doc-type>

with the request body :

{
    "properties":{
        "asset":{
            "properties" :{
            "biosSerialNumber":{
                "type":"keyword",
                "fields":{
                  "suffix":{
                    "type":"text",
                    "analyzer":"abc_analyzer"
                  }
                }
              }
            }
        }
    }
}

worked.

I understand, for this to take effect on the existing data in the field, documents need to be re-indexed.

answered Sep 30, 2019 at 11:16

User3518958

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3 Comments

Val Over a year ago

Glad you figured it out. You can simply call POST <elshost>/<index-name>/_update_by_query in order to make sure all documents pick up the new field. NO need tou reindex from an external data source.

User3518958 Over a year ago

ohhk, that's awesome and very useful. Thanks.

User3518958 Over a year ago

Hi @Val, I have asked a new question w.r.t _update_by_query. Can you check? link:stackoverflow.com/questions/58510637/…

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