# Applying joins to the data through logstash
**URL:** https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320
**Category:** Logstash
**Created:** [November 20, 2017, 5:56am UTC](https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320 "2017-11-20T05:56:07Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@devil\_srj7](https://discuss.elastic.co/u/devil_srj7)
#### Post date: [November 20, 2017, 5:56am UTC](https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320/1 "2017-11-20T05:56:07Z")
I need to apply joins to my documents which are in RDMS while importing them to elasticserch through logstash.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [November 20, 2017, 5:59am UTC](https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320/2 "2017-11-20T05:59:29Z")
Ok, so what have you tried?
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### Author:  [@devil\_srj7](https://discuss.elastic.co/u/devil_srj7)
#### Post date: [November 20, 2017, 6:15am UTC](https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320/3 "2017-11-20T06:15:48Z")
i know how to apply joins directly through curl commands and how to import data from mysql to elasticsearch index.
But no clue how to apply joins directly while transfer.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 18, 2017, 6:16am UTC](https://discuss.elastic.co/t/applying-joins-to-the-data-through-logstash/108320/4 "2017-12-18T06:16:07Z")
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