********************************* Executing as background process ********************************* If you execute tsql as a background process, tsql will exit before executing a query because of some limitation of Jline2. Example: .. code-block:: sql $ bin/tsql -f aggregation.sql & [1] 19303 $ [1]+ Stopped ./bin/tsql -f aggregation.sql To avoid above problem, Tajo provides the -B command as follows: .. code-block:: sql $ bin/tsql -B -f aggregation.sql & [2] 19419 Progress: 0%, response time: 0.218 sec Progress: 0%, response time: 0.22 sec Progress: 0%, response time: 0.421 sec Progress: 0%, response time: 0.823 sec Progress: 0%, response time: 1.425 sec Progress: 1%, response time: 2.227 sec