Add _timestamp to Elasticsearch results using Java API

Question

I have an Elasticsearch index which has _timestamp populated on every record. Using Marvel or curl I can get the _timestamp in the "fields" part of the result for example:

GET index/type/_search?fields=_timestamp,_source { "took": 11, "timed_out": false, "_shards": { "total": 3, "successful": 3, "failed": 0 }, "hits": { "total": 116888, "max_score": 1, "hits": [ { "_index": "index", "_type": "type", "_id": "mXJdWqSLSfykbMtChiCRjA", "_score": 1, "_source": { "results": "example", }, "fields": { "_timestamp": 1443618319514 } },...

However when doing a search using the Java API I cant get it to return the _timestamp.

SearchRequestBuilder builder= client.prepareSearch(index) .addFacet(facet) .setFrom(start) .setSize(limit); SearchResponse response = builder.execute().actionGet();

Can anyone tell me how to ask for _timestamp too?

Val · Accepted Answer · 2015-11-02 19:37:25Z

1

You simply need to use the setFields() method like this:

SearchRequestBuilder builder= client.prepareSearch(index) .setType(type) .addFacet(facet) .setFields("_timestamp") <--- add this line .setFrom(start) .setSize(limit); SearchResponse response = builder.execute().actionGet();

edited Nov 2, 2015 at 19:37

answered Oct 31, 2015 at 5:07

Val

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9 Comments

llebpmac Over a year ago

.setFields is not an available method in my version of ES however I used addFields instead and it still did not return the timestamp. Any other ideas?

SearchRequestBuilder buider = client.prepareSearch(index)	.addFacet(facet)	.addFields("_timestamp", "_source")	.setFrom(start)	.setSize(limit);	return builder;

Val Over a year ago

And what version is that?

llebpmac Over a year ago

Elasticsearch version 1.1.1. When I added .addFields('_timestamp') then the source disappeared. But when I used .addFields("timestamp", "_source") the source returns again but still no time stamp, even though it is being stored.

Val Over a year ago

1.1.1, ouch :) It's weird, though, because I could find the setFields method in the 1.1.1 release.

llebpmac Over a year ago

Unfortunately 1.1.1 :( Yes but that is for the GetRequestBuilder whereas im using the SearchRequestBuilder

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