# Merging Mapping **URL:** \ **Category:** Elasticsearch\ **Created:** [June 18, 2012, 1:02pm UTC](https://discuss.elastic.co/t/merging-mapping/8144 "2012-06-18T13:02:36Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Sumit\_Guptaa](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@Sumit\_Guptaa](https://discuss.elastic.co/u/Sumit_Guptaa)\ **Post date:** [June 18, 2012, 1:02pm UTC](https://discuss.elastic.co/t/merging-mapping/8144/1 "2012-06-18T13:02:36Z")
hi all, can anybody tell me how we can define mapping on index which has 10 GB data? i want to merge the mapping without reindex my document.. Thanx in advance Regards, Sumit Gupta ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [June 18, 2012, 1:53pm UTC](https://discuss.elastic.co/t/merging-mapping/8144/2 "2012-06-18T13:53:09Z")
What do you mean by "merge mapping" ? 1. Adding new fields (with their own mappings) ? 2. Modify mapping for existing fields ? 3. You just have to send the new mapping (with all fields - old and new) : [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/api/admin-indices-put-mapping.html) [http://www.elasticsearch.org/guide/reference/api/admin-indices-put-mapping.html](http://www.elasticsearch.org/guide/reference/api/admin-indices-put-mapping.html) 4. You can't HTH David. Le 18 juin 2012 à 15:02, Sumit Guptaa [sumit.gupta.ngi@gmail.com](mailto:sumit.gupta.ngi@gmail.com) a écrit : > hi all, > > can anybody tell me how we can define mapping on index which has 10 GB data? > i want to merge the mapping without reindex my document.. > > Thanx in advance > > Regards, > Sumit Gupta > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/Merging-Mapping-tp4019449.html](http://elasticsearch-users.115913.n3.nabble.com/Merging-Mapping-tp4019449.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). -- David Pilato [http://dev.david.pilato.fr/](http://dev.david.pilato.fr/) Twitter : @dadoonet ---
**Author:** ![Sumit\_Guptaa](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@Sumit\_Guptaa](https://discuss.elastic.co/u/Sumit_Guptaa)\ **Post date:** [June 19, 2012, 5:29am UTC](https://discuss.elastic.co/t/merging-mapping/8144/3 "2012-06-19T05:29:00Z")
hi i want to add mapping in existing fields and fields already has more data so how we can achieve this.... thanx Regards, Sumit Gupta ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [June 19, 2012, 6:25am UTC](https://discuss.elastic.co/t/merging-mapping/8144/4 "2012-06-19T06:25:55Z")
You have to reindex your docs with the new mapping. HTH David 😉 Twitter : @dadoonet / @elasticsearchfr Le 19 juin 2012 à 07:29, Sumit Guptaa [sumit.gupta.ngi@gmail.com](mailto:sumit.gupta.ngi@gmail.com) a écrit : > hi > > i want to add mapping in existing fields and fields already has more data so > how we can achieve this.... > > thanx > > Regards, > Sumit Gupta > > -- > View this message in context: [http://elasticsearch-users.115913.n3.nabble.com/Merging-Mapping-tp4019449p4019469.html](http://elasticsearch-users.115913.n3.nabble.com/Merging-Mapping-tp4019449p4019469.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![Sumit\_Guptaa](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@Sumit\_Guptaa](https://discuss.elastic.co/u/Sumit_Guptaa)\ **Post date:** [June 19, 2012, 6:33am UTC](https://discuss.elastic.co/t/merging-mapping/8144/5 "2012-06-19T06:33:40Z")
hi dadoonet i don't want reindex my document....is there any way to achieve this... Regards, Sumit Gupta ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:23am UTC](https://discuss.elastic.co/t/merging-mapping/8144/6 "2017-07-06T03:23:29Z")