# Conditionally merge values from 2 fields into 1 new field

**URL:** <https://discuss.elastic.co/t/conditionally-merge-values-from-2-fields-into-1-new-field/240436>\
**Category:** Elasticsearch\
**Created:** [July 8, 2020, 11:06pm UTC](https://discuss.elastic.co/t/conditionally-merge-values-from-2-fields-into-1-new-field/240436 "2020-07-08T23:06:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ericl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ericl/32/71837_2.png) [@ericl](https://discuss.elastic.co/u/ericl)\
**Post date:** [July 8, 2020, 11:06pm UTC](https://discuss.elastic.co/t/conditionally-merge-values-from-2-fields-into-1-new-field/240436/1 "2020-07-08T23:06:29Z")

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I'm looking for a recommended way to copy value either from **field1** or **field2** , whichever is not empty and **field2** take precedence over **field1** , into a third field name **field3**

I was trying to do that with scripted fields, I'm wondering if there is other options that can be more performing

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**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\
**Post date:** [July 9, 2020, 12:44am UTC](https://discuss.elastic.co/t/conditionally-merge-values-from-2-fields-into-1-new-field/240436/2 "2020-07-09T00:44:53Z")

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At this point an ingest pipeline is where I'd look.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 6, 2020, 12:44am UTC](https://discuss.elastic.co/t/conditionally-merge-values-from-2-fields-into-1-new-field/240436/3 "2020-08-06T00:44:53Z")

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Closed on August 6, 2020, 12:44am UTC

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