> Amazon's assertion that 'neither release notes nor documentation make it clear what is open source and what is proprietary' Which is a wrong assertion, you c

> Amazon's assertion that 'neither release notes nor documentation make it clear what is open source and what is proprietary' Which is a wrong assertion, you can clearly see that it is an under Licence feature by the X-pack mention: https://www.elastic.co/guide/en/elasticsearch/reference/current/xpack-sql.html https://www.elastic.co/guide/en/elasticsearch/reference/curr... above the name of the feature.