# Set default datatype for all new fields

**URL:** <https://discuss.elastic.co/t/set-default-datatype-for-all-new-fields/64244>\
**Category:** Elasticsearch\
**Created:** [October 28, 2016, 6:15am UTC](https://discuss.elastic.co/t/set-default-datatype-for-all-new-fields/64244 "2016-10-28T06:15:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![birduser](https://avatars.discourse-cdn.com/v4/letter/b/f1d935/32.png) [@birduser](https://discuss.elastic.co/u/birduser)\
**Post date:** [October 28, 2016, 6:15am UTC](https://discuss.elastic.co/t/set-default-datatype-for-all-new-fields/64244/1 "2016-10-28T06:15:09Z")

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Hi everyone!

How can I set a default datatype (for example 'string') for all new created fields in a type within an index?  
I try to prohibit storing it in the mapping properties of every field.

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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:** [October 30, 2016, 3:28am UTC](https://discuss.elastic.co/t/set-default-datatype-for-all-new-fields/64244/2 "2016-10-30T03:28:22Z")

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Have a look at [dynamic templates](https://www.elastic.co/guide/en/elasticsearch/reference/current/dynamic-templates.html).

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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:** [July 5, 2017, 10:08pm UTC](https://discuss.elastic.co/t/set-default-datatype-for-all-new-fields/64244/3 "2017-07-05T22:08:34Z")

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