TPC-H's query 19 is now supported.
TPC-H's query 19 is now supported.


Former-commit-id: e2501ac2dba300c6eb637004eb801bc814920043
HPI-SWA-Lab/SQPyte,HPI-SWA-Lab/SQPyte,HPI-SWA-Lab/SQPyte,HPI-SWA-Lab/SQPyte,HPI-SWA-Lab/SQPyte