The documentation (see
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-fields.html#search-request-fields)
says that * can be used to load all stored fields from the document.
If your mapping doesn't define stored field then '*' works as if you had
specified an empty array and only _id / _type / _index fields are returned
for each hit.
-- Tanguy
Le jeudi 23 octobre 2014 08:22:42 UTC+2, Gargoyle a écrit :
>
> Hi,
>
> would anyone have an idea, why my queries with "fields" : "*" return no
> fields? All string fields are "not_analyzed".
>
> I.e. query:
>
> {
> "size" : 1,
> "fields" : "*",
> "query": {
> "match_all" : {}
> }
> }
>
> returns
>
> {
> "took": 81,
> "timed_out": false,
> "_shards": {
> "total": 40,
> "successful": 40,
> "failed": 0
> },
> "hits": {
> "total": 39806726,
> "max_score": 1,
> "hits": [
> {
> "_index": "zperf_2014-10-16",
> "_type": "sample",
> "_id": "1VMDom_uQSeMEDSt_aFyNw",
> "_score": 1
> }
> ]
> }
> }
>
> while if I'm not specifying "fields" at all, I get the _source as expected:
>
> {
> "took": 75,
> "timed_out": false,
> "_shards": {
> "total": 40,
> "successful": 40,
> "failed": 0
> },
> "hits": {
> "total": 39806726,
> "max_score": 1,
> "hits": [
> {
> "_index": "zperf_2014-10-16",
> "_type": "sample",
> "_id": "1VMDom_uQSeMEDSt_aFyNw",
> "_score": 1,
> "_source": {
> "timestamp": "2014-10-16T17:38:20.000Z",
> "path2": "VM",
> "path1": "vSphere11",
> "path4": "scsi0:0",
> "path3": "vm-3276",
> "virtualDisk.numberWriteAveraged": 0,
> "virtualDisk.numberReadAveraged": 0,
> "vmName": null
> }
> }
> ]
> }
> }
>
> and I I'm specific on fields like this:
>
> {
> "size" : 1,
> "fields" : ["timestamp", "path3"],
> "query": {
> "match_all" : {}
> }
> }
>
> I'm getting what I wanted:
>
> {
> "took": 78,
> "timed_out": false,
> "_shards": {
> "total": 40,
> "successful": 40,
> "failed": 0
> },
> "hits": {
> "total": 39836795,
> "max_score": 1,
> "hits": [
> {
> "_index": "zperf_2014-10-16",
> "_type": "sample",
> "_id": "1VMDom_uQSeMEDSt_aFyNw",
> "_score": 1,
> "fields": {
> "timestamp": [
> "2014-10-16T17:38:20.000Z"
> ],
> "path3": [
> "vm-3276"
> ]
> }
> }
> ]
> }
> }
>
>
>
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