Configuration conf = context.getConfiguration();
HblQueryClient hblQueryClient = new HblQueryClient(conf);
HblInputSplit hblSplit = (HblInputSplit) split;
PreparedAggregateQueryImpl paq = (PreparedAggregateQueryImpl) hblQueryClient.createPreparedQuery();
paq.prepare(getHblQuery(conf));
String cuboidTableName = hblSplit.getCuboidTable();
if (cuboidTableName == null)
throw new HblException("Invalid cuboid name at backend. Something in MR happened wrong.");