# Recommend a way to do nested field aggregation
**URL:** https://discuss.elastic.co/t/recommend-a-way-to-do-nested-field-aggregation/143952
**Category:** Elasticsearch
**Created:** [August 11, 2018, 1:10am UTC](https://discuss.elastic.co/t/recommend-a-way-to-do-nested-field-aggregation/143952 "2018-08-11T01:10:37Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@wangweiching](https://discuss.elastic.co/u/wangweiching)
#### Post date: [August 11, 2018, 1:10am UTC](https://discuss.elastic.co/t/recommend-a-way-to-do-nested-field-aggregation/143952/1 "2018-08-11T01:10:37Z")
i have the multiple documents query response with multiple dates as followed, I would like to know if we can do aggregation on
those documents for example, I like to aggregate all the predictions elements with same date, the hours values like hours.h1, hours,h2 and hours.h3 and get only a single date prediction element.
...
{
"predictions": [{
"date": "2018-08-10",
"hours": [{
"h1": {
"t": 100
},
"h2": {
"t": 100
}
}]
}]
}
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 8, 2018, 1:10am UTC](https://discuss.elastic.co/t/recommend-a-way-to-do-nested-field-aggregation/143952/2 "2018-09-08T01:10:43Z")
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