# Can Elasticsearch produce temporary field like Mysql?

**URL:** <https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247>\
**Category:** Elasticsearch\
**Created:** [December 30, 2016, 2:43am UTC](https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247 "2016-12-30T02:43:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![windcandle](https://avatars.discourse-cdn.com/v4/letter/w/c57346/32.png) [@windcandle](https://discuss.elastic.co/u/windcandle)\
**Post date:** [December 30, 2016, 2:43am UTC](https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247/1 "2016-12-30T02:43:25Z")

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In Mysql sql,we can "select id,name,min(price) as min\_price from table group by id".This min\_price is a temporary [field.In](http://field.In) Elasticsearch ,How can I do?  
eg:  
{  
"id":1,  
"name":"windcandle",  
"prices":[  
{  
"date":"2016-12-29",  
"price": "20.00"  
},  
{  
"date":"2016-12-30",  
"price": "21.00"  
},  
{  
"date":"2016-12-31",  
"price": "20.00"  
},  
.....  
}.

}  
I want to get id ,name ,min\_price,How Can I do?

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [December 30, 2016, 8:31am UTC](https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247/2 "2016-12-30T08:31:26Z")

</div>

There is no such concept in ES, you can only just get the min value - [https://www.elastic.co/guide/en/elasticsearch/reference/5.1/search-aggregations-metrics-min-aggregation.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.1/search-aggregations-metrics-min-aggregation.html)

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<div class="post-metadata">

**Author:** ![windcandle](https://avatars.discourse-cdn.com/v4/letter/w/c57346/32.png) [@windcandle](https://discuss.elastic.co/u/windcandle)\
**Post date:** [December 30, 2016, 9:19am UTC](https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247/3 "2016-12-30T09:19:53Z")

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Thanks for you .But this result is minimum of all documents .I want to get the minimum price of each document.  
each document has many price.  
I try this .

{  
"query": {  
"match\_all": {}  
},  
"script\_fields": {  
"min\_price": {  
"script": {  
"inline": "\_source.roomType.pricedates.price"  
}  
}  
}  
}  
but can not!

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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:** [January 27, 2017, 9:20am UTC](https://discuss.elastic.co/t/can-elasticsearch-produce-temporary-field-like-mysql/70247/4 "2017-01-27T09:20:33Z")

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