# Combining nested and none nested fields in aggregate query

**URL:** <https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906>\
**Category:** Elasticsearch\
**Created:** [October 13, 2016, 7:38am UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906 "2016-10-13T07:38:21Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Denis\_Lamanov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/denis_lamanov/32/13111_2.png) [@Denis\_Lamanov](https://discuss.elastic.co/u/Denis_Lamanov)\
**Post date:** [October 13, 2016, 7:38am UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906/1 "2016-10-13T07:38:21Z")

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Hi guys,

Is it possible to combine nested and none nested fields in aggregate query?

Thanks

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<div class="post-metadata">

**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\
**Post date:** [October 14, 2016, 3:04pm UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906/2 "2016-10-14T15:04:57Z")

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Which aggregation are we talking about and how should fields be combined?

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<div class="post-metadata">

**Author:** ![Denis\_Lamanov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/denis_lamanov/32/13111_2.png) [@Denis\_Lamanov](https://discuss.elastic.co/u/Denis_Lamanov)\
**Post date:** [October 15, 2016, 8:42am UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906/3 "2016-10-15T08:42:50Z")

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Hi,

I use NEST and wite this kind of objects:

```
[ElasticsearchType]
  public class LogMessage
  {
    [Object(Name = "key")]
    public MessageKey key { get; set; }
    
    [Nested(Name = "doc")]
    public Object Doc { get; set; }  
  }

```

key has some simple not nested fields: eventtime and id  
Doc has a lot of nested fields, arrays.

I want to aggregate, for example:

```
{
   "aggs":{
      "agg":{
         "aggs":{
            "agg":{
               "nested":{
                  "path":"doc"
               },
               "aggs":{
                  "agg":{
                     "date_histogram":{
                        "field":"doc.time",
                        "interval":"day",
                        "format":"dd-MM-yyyy"
                     },
                     "aggs":{
                        "agg":{
                           "histogram":{
                              "field":"key.Id",
                              "interval":1.0
                           }
                        }
                     }
                  }
               }
            }
         }
      }
   }
}

```

but as I understand we can't use not nested [key.Id](http://key.Id) after declared nested path 'doc'

Will change type from  
[Object(Name = "key")]  
to  
[Nested(Name = "key")]

fix it?

Thanks

---

<div class="post-metadata">

**Author:** ![Denis\_Lamanov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/denis_lamanov/32/13111_2.png) [@Denis\_Lamanov](https://discuss.elastic.co/u/Denis_Lamanov)\
**Post date:** [October 17, 2016, 1:59pm UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906/4 "2016-10-17T13:59:43Z")

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Hi guys,

I found a solution: Reverse nested aggreagtion  
[https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-reverse-nested-aggregation.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-reverse-nested-aggregation.html)

Thanks

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 10:11pm UTC](https://discuss.elastic.co/t/combining-nested-and-none-nested-fields-in-aggregate-query/62906/5 "2017-07-05T22:11:43Z")

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