@Override
  public Scan setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp) {
    super.setColumnFamilyTimeRange(cf, minStamp, maxStamp);
    return this;
  }
Get versions of columns with the specified timestamp. Note, default maximum versions to return
is 1. If your time range spans more than one version and you want all versions returned, up the
number of versions beyond the defaut.
@param timestamp version timestamp
@see #readAllVersions()
@see #readVersions(int)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/Scan.java