Can I delete a field of a doc?

Elastic Stack Elasticsearch
1

I want to delete a field of a doc, I tried some ways but failed. Is there a query DSL or api I can use?

2

Just send a new version of your doc without the field...

3

Thanks a lot. If there is no other way to implement it. I will try this way.

4

It's the easiest way. Is there anything wrong with that method from your point of view?

5

You could use the update API with an update script. This eliminates a round trip at the cost of having to deal with scripting.

6

I worry about the conflict of the update, may be some threads update the doc at the same time. But It seems this is the only way. I will fetch the old doc first, remember the old version, and post the new doc without the field I want to remove, and then check the version returned.

7

You can use versionning: https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html#index-versioning