# Logstash CSV adding multiple rows by splitting a column value

**URL:** <https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766>\
**Category:** Logstash\
**Created:** [March 19, 2021, 8:28am UTC](https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766 "2021-03-19T08:28:04Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![venkat\_s](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/venkat_s/32/85786_2.png) [@venkat\_s](https://discuss.elastic.co/u/venkat_s)\
**Post date:** [March 19, 2021, 8:28am UTC](https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766/1 "2021-03-19T08:28:04Z")

</div>

Hello,

I am importing csv file to elasticsearch using logstash.

I need to duplicate a row based on a comma separated column values. This is how the data looks.

![image](https://us1.discourse-cdn.com/elastic/original/3X/a/1/a109a05f99487d58af0f7ff4f39e8e888a7daf71.png)

I want to add multiple rows based on the number of values in the column 'category' as below.

![image](https://us1.discourse-cdn.com/elastic/original/3X/5/b/5b57267dd9b0a30f051af2bf2fb6f4cd21d7c1fe.png)

Kindly suggest me on how to achieve this using logstash.

Thanks

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [March 19, 2021, 2:53pm UTC](https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766/2 "2021-03-19T14:53:35Z")

</div>

Use mutate+split to convert the [category] field to an array, then use a split filter to convert that to multiple events.

---

<div class="post-metadata">

**Author:** ![venkat\_s](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/venkat_s/32/85786_2.png) [@venkat\_s](https://discuss.elastic.co/u/venkat_s)\
**Post date:** [March 19, 2021, 3:22pm UTC](https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766/3 "2021-03-19T15:22:54Z")

</div>

This worked! Thank you so much. I really appreciate for helping me.

---

<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:** [April 16, 2021, 3:23pm UTC](https://discuss.elastic.co/t/logstash-csv-adding-multiple-rows-by-splitting-a-column-value/267766/4 "2021-04-16T15:23:19Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.