Remove a field from a Elasticsearch document

elasticsearch
Jalal picture Jalal · Mar 12, 2015 · Viewed 78k times · Source

I need to remove a field in all the documents indexed to Elasticsearch . How can i do it. Will any of the delete queries help me achieve this.

Answer

Vineeth Mohan picture Vineeth Mohan · Mar 12, 2015

What @backtrack told is true , but then there is a very convenient way of doing this in Elasticsearch. Elasticsearch will abstract out the internal complexity of the deletion. You need to use update API to achieve this - 

curl -XPOST 'localhost:9200/test/type1/1/_update' -d '{
    "script" : "ctx._source.remove(\"name_of_field\")"
}'

You can find more documentation here.

Note: As of Elastic Search 6 you are required to include a content-type header:

-H 'Content-Type: application/json'

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