# Update array fields using update\_by\_query

**URL:** https://discuss.elastic.co/t/update-array-fields-using-update-by-query/133075
**Category:** Elasticsearch
**Created:** [May 24, 2018, 5:51am UTC](https://discuss.elastic.co/t/update-array-fields-using-update-by-query/133075 "2018-05-24T05:51:47Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ramshad](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@ramshad](https://discuss.elastic.co/u/ramshad)
#### Post date: [May 24, 2018, 5:51am UTC](https://discuss.elastic.co/t/update-array-fields-using-update-by-query/133075/1 "2018-05-24T05:51:47Z")

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Hi,  
I have a field "tags" in all document.i want to update element "tag2" to "tag6" in all document which it contains.How can i achieve it ?  
Example documents:  
{  
"id":"1",  
"tags":["tag1","tag2","tag3"]  
}

{  
"id":"2",  
"tags":["tag2","tag4","tag5"]  
}

---

<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: [June 21, 2018, 5:51am UTC](https://discuss.elastic.co/t/update-array-fields-using-update-by-query/133075/2 "2018-06-21T05:51:51Z")

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