# Pig Connector: UPSERT requirement
**URL:** https://discuss.elastic.co/t/pig-connector-upsert-requirement/29023
**Category:** Elasticsearch
**Tags:** es-hadoop
**Created:** [September 10, 2015, 12:09pm UTC](https://discuss.elastic.co/t/pig-connector-upsert-requirement/29023 "2015-09-10T12:09:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ayan\_guha](https://discuss.elastic.co/u/ayan_guha)
#### Post date: [September 10, 2015, 12:09pm UTC](https://discuss.elastic.co/t/pig-connector-upsert-requirement/29023/1 "2015-09-10T12:09:10Z")
Hi Forum
I am trying to do an upsert operation. My requirement is to update a document partially using Pig Latin. I saw ex.update.script params but could not understand how to use them. Any example would be great. Also,is there any other way? Any help much appreciated...
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### Author:  [@costin](https://discuss.elastic.co/u/costin)
#### Post date: [September 10, 2015, 1:11pm UTC](https://discuss.elastic.co/t/pig-connector-upsert-requirement/29023/2 "2015-09-10T13:11:00Z")
Take a look at the Elasticsearch reference documentation, in particular the [update](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html) section.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:27pm UTC](https://discuss.elastic.co/t/pig-connector-upsert-requirement/29023/3 "2017-07-06T13:27:32Z")