remove distinct check with one param in second aggregate pharse (#70)
remove distinct check with one param in second aggregate pharse (#70)


imay/palo,lingbin/palo,lingbin/palo,imay/palo,morningman/palo,morningman/palo,morningman/palo,morningman/palo,cyongli/palo,cyongli/palo,imay/palo,morningman/palo,morningman/palo,cyongli/palo,lingbin/palo,imay/palo,cyongli/palo,imay/palo,lingbin/palo,imay/palo,cyongli/palo,lingbin/palo,cyongli/palo,lingbin/palo