drill

7980a713 - DRILL-1788: Test for case-insensitive join. Fix is in Calcite version 0.9-drill-r11.

DRILL-1788: Test for case-insensitive join. Fix is in Calcite version 0.9-drill-r11. Bump up optiq version to 0.9-drill-r11. Refactor TestExampleQueries by moving the Star queries to separate test file.