How to update fields in nested document without script

[martin_wun]

Hi all,

Is there a way to update an individual field in a nested document without having to use a script? I have found some answers here, but they all use a painless script in some form. E.g.:

How to update field inside nested document?

Have a look at scripted updates in the Update API. POST tmp_test/doc/1/_update { "script": { "lang": "painless", "source": "ctx._source.LineItem[0].CONumber = params.CONumber", "params": { "CONumber": "9876" } } }

Updating nested field with update_by_query API

Hello, I'm trying to update a nested field of my document through the update_by_query API, but I"m getting a casting error: [class_cast_exception] java.lang.String cannot be cast to java.util.Map This is the body of my request; { "query":{ "term":{ "acl_policy.group_id":"11550" } }, "script":"ctx._source.acl_policy = newAclPolicy", "params":{ "newAclPolicy":{ "group_id":"11550", "canned_group":"company", …

For example, say I have documents that represent user groups. Each group doc has nested docs with all the users of the group. How can I update the name field on one of these users, assuming that I have another field that serves as the unique ID?
Thanks!

Cheers,
Martin