# Can any one tell me to make aggregation on dynamic field\_name or restructure data

**URL:** <https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412>\
**Category:** Elasticsearch\
**Created:** [November 14, 2020, 7:00pm UTC](https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412 "2020-11-14T19:00:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tushar.sharma.cse](https://avatars.discourse-cdn.com/v4/letter/t/0ea827/32.png) [@tushar.sharma.cse](https://discuss.elastic.co/u/tushar.sharma.cse)\
**Post date:** [November 14, 2020, 7:00pm UTC](https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412/1 "2020-11-14T19:00:53Z")

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```auto
{"updated_on":"2020-11-15","journal":{"2020-10-20":"a","2020-10-21":"b"}}
{"updated_on":"2020-11-14","journal":{"2020-10-21":"c","2020-10-23":"b"}}
 
 
How to form aggregation query based on “journal” hash key’s(where key’s e.g. “2020-10-20” is dynamic ) .If not possible then how to structure data to generate below output
 
 
Result should be:
{ "aggregations" : {
    "journal_status_counts" : {
      "buckets" : [
{
          "key_as_string" : "2020-10-20",
          "key" : 1603305000000,
          "doc_count" : 2
},
  { "key_as_string" : "2020-10-21",
          "key" : 1603305000000,
          "doc_count" : 1
},
  { "key_as_string" : "2020-10-22",
          "key" : 1603305000000,
          "doc_count" : 0
}
,
  { "key_as_string" : "2020-10-23",
          "key" : 1603305000000,
          "doc_count" : 1
}
,
  { "key_as_string" : "2020-10-24",
          "key" : 1603305000000,
          "doc_count" : 0
}
…
]
…
}
}
}

```

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<div class="post-metadata">

**Author:** ![wangqinghuan](https://avatars.discourse-cdn.com/v4/letter/w/d26b3c/32.png) [@wangqinghuan](https://discuss.elastic.co/u/wangqinghuan)\
**Post date:** [November 15, 2020, 4:48am UTC](https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412/2 "2020-11-15T04:48:23Z")

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> [@tushar.sharma.cse](#):
>
> ```auto
> {"updated_on":"2020-11-15","journal":{"2020-10-20":"a","2020-10-21":"b"}}
> 
> ```

Could you make some change?  
`{"updated_on":"2020-11-15","journal":[{"date":"2020-10-20","value":"a"},{"date":"2020-10-21","values":"b"}]}`

---

<div class="post-metadata">

**Author:** ![tushar.sharma.cse](https://avatars.discourse-cdn.com/v4/letter/t/0ea827/32.png) [@tushar.sharma.cse](https://discuss.elastic.co/u/tushar.sharma.cse)\
**Post date:** [November 27, 2020, 6:54pm UTC](https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412/3 "2020-11-27T18:54:58Z")

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Thanks Wang 🙂 But I have resolved this by key as value and value as key  
{"updated\_on":"2020-11-15","journal":{ **"a"** :"2020-10-20", **"b"** :"2020-10-21"}}

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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:** [December 25, 2020, 6:55pm UTC](https://discuss.elastic.co/t/can-any-one-tell-me-to-make-aggregation-on-dynamic-field-name-or-restructure-data/255412/4 "2020-12-25T18:55:02Z")

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