Fixes #6101 While it may be more efficient to not process an empty filter, it is not wrong logically and should be supported for correctness.
A use case of this would be auto-filtering UIs which might happen to generate empty filters. It should be up to the application programmer to determine whether or not they want to incur that extra processing or add more complexity to their application to shortcut the request to Druid. [ Full content available at: https://github.com/apache/incubator-druid/pull/6315 ] This message was relayed via gitbox.apache.org for [email protected]
