# How To Add a New Field, Then Populate It Based On Another Field's Value?

**URL:** <https://discuss.elastic.co/t/how-to-add-a-new-field-then-populate-it-based-on-another-fields-value/206190>\
**Category:** Elasticsearch\
**Created:** [November 1, 2019, 4:35pm UTC](https://discuss.elastic.co/t/how-to-add-a-new-field-then-populate-it-based-on-another-fields-value/206190 "2019-11-01T16:35:34Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![redapplesonly](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/redapplesonly/32/57700_2.png) [@redapplesonly](https://discuss.elastic.co/u/redapplesonly)\
**Post date:** [November 7, 2019, 12:43am UTC](https://discuss.elastic.co/t/how-to-add-a-new-field-then-populate-it-based-on-another-fields-value/206190/3 "2019-11-07T00:43:11Z")

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You are correct. I was able to solve this in Logstash; for anyone reading this post, see [here](https://discuss.elastic.co/t/logstash-how-to-add-a-new-field-then-populate-it-based-on-another-fields-value/206193).

Thanks!

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_[View the full topic](https://discuss.elastic.co/t/how-to-add-a-new-field-then-populate-it-based-on-another-fields-value/206190)._