# 2.2 and fields with dots in the names

**URL:** <https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414>\
**Category:** Elasticsearch\
**Created:** [February 22, 2016, 5:32pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414 "2016-02-22T17:32:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![maxwell](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@maxwell](https://discuss.elastic.co/u/maxwell)\
**Post date:** [February 22, 2016, 5:32pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414/1 "2016-02-22T17:32:00Z")

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I have upgraded to elasticsearch 2.2, and it was a pain because I had to deal with the new mapping restrictions of "no fields with dots in names."

Now that I am IN 2.2 what will happen if I try to create a field with a dot in the name?? I don't plan to do this, but sometimes rogue kv filters cause problems. Will it reject them?? or will it create them, and then stop me from starting up elasticsearch in the future because of them??

Worried.

Thanks!

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**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\
**Post date:** [February 22, 2016, 5:49pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414/2 "2016-02-22T17:49:10Z")

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They will not be created. It will fail when the mapping is to be updated.

Ivan

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**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\
**Post date:** [February 22, 2016, 6:20pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414/3 "2016-02-22T18:20:35Z")

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See also the discussion at [https://github.com/elastic/elasticsearch/issues/15951](https://github.com/elastic/elasticsearch/issues/15951).

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**Author:** ![maxwell](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@maxwell](https://discuss.elastic.co/u/maxwell)\
**Post date:** [February 22, 2016, 6:27pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414/4 "2016-02-22T18:27:11Z")

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Thank you!

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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, 11:14pm UTC](https://discuss.elastic.co/t/2-2-and-fields-with-dots-in-the-names/42414/5 "2017-07-05T23:14:25Z")

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