Elasticsearch update the whole `_source` field based on search query

问题

"_source": {
         "id": "5b1676493d21784208c36041",
         "label": "name",
         "properties": {
           "name": "patrick"
         },
         "updatedAt": 1528259039542
       }

I want to update this document based on id (not _id) with a new document.

Something like this:

    "_source": {
             "dataSource": "ELASTIC",
             "entity": "vertices",
             "label": "vertices",
             "id": "5b1676493d21784208c36041",
             "properties": {
                     "name": "patrick"
                  },
             "updatedAt": 1528259039542
           }

elasticsearch version: 6.2, ES Java api: 6.2

回答1:

You can achieve what you want using the update by query API, basically like this:

POST index/_update_by_query
{
  "query": {
    "match": {
      "id": "5b1676493d21784208c36041"
    }
  },
  "script": {
    "source": "ctx._source = params",
    "params": {
       "dataSource": "ELASTIC",
       "entity": "vertices",
       "label": "vertices"
    }
  }
}

UPDATE: Using the Java API

Map<String, String> params = new HashMap<>();
params.put("dataSource", "ELASTIC");
params.put("entity", "vertices");
params.put("label", "vertices");

UpdateByQueryRequestBuilder updateByQuery = UpdateByQueryAction.INSTANCE.newRequestBuilder(client);
updateByQuery.source("index")
    .filter(QueryBuilders.matchQuery("id", "5b1676493d21784208c36041"))
    .size(1000)
    .script(new Script(ScriptType.INLINE, "painless", "ctx._source.putAll(params)", params));
BulkByScrollResponse response = updateByQuery.get();

More details on using the UpdateByQuery Java API and Java high level rest client

回答2:

"ctx._source.putAll(params)" was a nice try, but unfortunately it moves all existing fields under _source.ctx.

So, the following works for me (ES 6.1):

"for (k in params.keySet()){if (!k.equals('ctx')){ctx._source.put(k, params.get(k))}}"

来源：https://stackoverflow.com/questions/50743317/elasticsearch-update-the-whole-source-field-based-on-search-query

标签

ElasticSearch

elasticsearch-java-api