1. Create MapR-DB binary table and put some data using HBase shell:
2. Drill config: ensure that dfs storage plugin has "connection": "maprfs:///" and contains format:
3. Check that table can be selected from Drill :
4. Create Drill view
5. Query the view results into exception:
This issue may be reproduced also when avro files with map columns are queried using Drill. Appropriate test was added to PR commit.