刪除臨時表我有registertemptable在Apache Spark使用下面Zeppelin: val hvacText = sc.textFile("...")
case class Hvac(date: String, time: String, targettemp: Integer, actualtemp: Integer, buildingID: String)
val h
我有這樣的郵件的recods: Name MailingID Timestamp Event
1 John 1 2014-04-18 Sent
2 John 2 2015-04-21 Sent
3 Mary 1 2015-04-22 Returned
4 Mary 2 2015-04-25 Sent
5 John 1 2015-05-01 Replied
可