hive获取系统时间:
hive> select current_date(); OK 2015-09-23 hive> select from_unixtime(unix_timestamp()); OK 2015-09-23 11:07:35 hive> SELECT FROM_UNIXTIME(UNIX_TIMESTAMP()-1*24*60*60,'yyyyMMdd HH:mm:ss'); OK 20150922 11:10:31 hive> SELECT FROM_UNIXTIME(UNIX_TIMESTAMP()-1*24*60*60,'yyyyMMdd'); OK 20150922
参考: