can we rename a field in particular field index, Please help me with an example

Hello, I got this problem solved by changing fieldname, by reindexing: field1->field2 POST _reindex { "source": { "index": "accountindex" }, "dest": { "index": "accountindex_new" }, "script": { "inline": "ctx._source.field2 = ctx._source.remove("field1")" } }

No you can't rename a field. Field aliases are coming though. But for now you probably have to reindex.

thanks for your help, ok, i have 17 lakhs of documents which was loaded from sql database to elasticsearch. It almost took 10hours to load the 17 lakhs+ huge amount of data. Please correct me if i am wrong @dadoonet , So to rename a particular field, do i need to again create new index , rename t…

You will indeed need to create a new index and index all the data into this, but you can use the reindex API together with a script or ingest pipeline to do this within Elasticsearch instead of reading it from the source. If you are on a recent version and want to be able to search by a different f…

Oh! I thought this feature was only in 7.0 :slight_smile: Thanks @Christian_Dahlqvist :wink:

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Rename a field of particular index

Elastic Stack Elasticsearch

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Rename Field in Index (index, visu, dashboard, etc...) Elasticsearch	11	4801	January 9, 2019
Is it possible to rename a field in ES? Elasticsearch	5	13382	July 6, 2017
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Rename source field names Elasticsearch	2	1260	July 5, 2017

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Rename a field of particular index

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