WARNING: Version 5.6 of Kibana has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Kibana cannot perform aggregations across fields that contain nested objects. It also cannot search on nested objects when Lucene Query Syntax is used in the query bar.
copy_to as a workaround is not supported and may stop functioning in future releases.