Add transaction in hybrid scan test when inserting tuples in table.
Add transaction in hybrid scan test when inserting tuples in table.

ranxian/peloton,amaliujia/CMUDB-peloton,amaliujia/CMUDB-peloton,ranxian/peloton,amaliujia/CMUDB-peloton,ranxian/peloton,ranxian/peloton,ranxian/peloton,amaliujia/CMUDB-peloton,amaliujia/CMUDB-peloton,amaliujia/CMUDB-peloton,ranxian/peloton,amaliujia/CMUDB-peloton