# How do I copy and modify a schema? **URL:** \ **Category:** Elasticsearch\ **Created:** [October 13, 2022, 12:22am UTC](https://discuss.elastic.co/t/how-do-i-copy-and-modify-a-schema/316477 "2022-10-13T00:22:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![wpm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wpm/32/110146_2.png) [@wpm](https://discuss.elastic.co/u/wpm)\ **Post date:** [October 13, 2022, 12:22am UTC](https://discuss.elastic.co/t/how-do-i-copy-and-modify-a-schema/316477/1 "2022-10-13T00:22:59Z")
I indexed a bunch of documents and let Elastic automatically pick the field types. It got some of them right and some of them wrong. (e.g. a field is `keyword` when it should be `string` and vice versa). My documents have many fields, and it appears the easiest thing to do will be to copy the schema, modify the types I don't like, and reingest. Is this a standard strategy? What is the easiest way to go about it? Can I do the whole procedure in Kibana. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [October 13, 2022, 12:59am UTC](https://discuss.elastic.co/t/how-do-i-copy-and-modify-a-schema/316477/2 "2022-10-13T00:59:06Z")
It's a mapping in Elasticsearch, not a schema like a database 🙂 You can get it via `GET INDEX/_mapping`. You cannot update a mapping for an existing field, you will need to create a new index with the updated mapping and then do a reindex. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 10, 2022, 12:59am UTC](https://discuss.elastic.co/t/how-do-i-copy-and-modify-a-schema/316477/3 "2022-11-10T00:59:16Z")
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