add new ddl for nested loop test scripts
add new ddl for nested loop test scripts


Former-commit-id: 524e447be3fabf2ee390a50da26b057ab4d352db
larryxiao/peloton,amaliujia/CMUDB-peloton,larryxiao/peloton,larryxiao/peloton,ranxian/peloton,omegaga/peloton,larryxiao/peloton,larryxiao/peloton,larryxiao/peloton-1,larryxiao/peloton-1,omegaga/peloton,ranxian/peloton,larryxiao/peloton,amaliujia/CMUDB-peloton,larryxiao/peloton-1,amaliujia/CMUDB-peloton,omegaga/peloton,amaliujia/CMUDB-peloton,ranxian/peloton,larryxiao/peloton-1,amaliujia/CMUDB-peloton,omegaga/peloton,larryxiao/peloton-1,omegaga/peloton,larryxiao/peloton-1,omegaga/peloton,amaliujia/CMUDB-peloton,ranxian/peloton,larryxiao/peloton-1,larryxiao/peloton,omegaga/peloton,ranxian/peloton,ranxian/peloton,amaliujia/CMUDB-peloton