Delete columns of the underlying RDD from HBase.
Delete columns of the underlying RDD from HBase.
The RDD is assumed to be an instance of RDD[(K, Map[String, Set[Q]])]
,
where the first value is the rowkey and the second is a map that associates
column families and a set of column names w/ or w/o timestamps.
If timestamp is specified, only the corresponding version is deleted,
otherwise all versions are deleted.
(Since version ) see corresponding Javadoc for more information.