Elasticsearch: is there a way to declare for all (possibly dynamic) subfields of an object field as string?

Question

I have a doc_type with a mapping similar to this very simplified one:

{
   \"test\":{
      \"properties\":{
         \"name\":{
            \"type\":\"strin         


        

Answer 1

You're almost there.

First, your dynamic mapping's path must be on clearances.*, and it must be a path_match and not a plain match.

Here's a runnable example: https://www.found.no/play/gist/df030f005da71827ca96

export ELASTICSEARCH_ENDPOINT="http://localhost:9200"

# Create indexes

curl -XPUT "$ELASTICSEARCH_ENDPOINT/play" -d '{
    "settings": {},
    "mappings": {
        "test": {
            "dynamic_templates": [
                {
                    "clearances_as_string": {
                        "path_match": "clearances.*",
                        "mapping": {
                            "type": "string",
                            "index": "not_analyzed"
                        }
                    }
                }
            ]
        }
    }
}'


# Index documents
curl -XPOST "$ELASTICSEARCH_ENDPOINT/_bulk?refresh=true" -d '
{"index":{"_index":"play","_type":"test"}}
{"clearances":{"glamis":1234,"cawdor":5678}}
{"index":{"_index":"play","_type":"test"}}
{"clearances":{"glamis":"aa2862jsgd","cawdor":"some string"}}
'

# Do searches

curl -XPOST "$ELASTICSEARCH_ENDPOINT/_search?pretty" -d '
{
    "facets": {
        "cawdor": {
            "terms": {
                "field": "clearances.cawdor"
            }
        }
    }
}
'