docs: @PUT
  	@Path("/{keyspace}/{columnFamily}/{key}/{columnName}")
  	@Produces({ "application/json" })
  	public void addColumn(@PathParam("keyspace") String keyspace, @PathParam("columnFamily") String columnFamily,
  			@PathParam("key") String key, @PathParam("columnName") String columnName,
  			@QueryParam("index") boolean index, String body,
  			@HeaderParam(CONSISTENCY_LEVEL_HEADER) String consistencyLevel) throws Exception {
  		if (logger.isDebugEnabled())
  			logger.debug("Deleting row [" + keyspace + "]:[" + columnFamily + "]:[" + key + "] => [" + body + "]");
  		getCassandraStorage().addColumn(keyspace, columnFamily, key, columnName, body,
  				config.getConsistencyLevel(consistencyLevel), index);
  	}