private ReadResult translate(Column current) {
   byte[] name = current.getName();
   byte[] value = current.getValue();
   Object time = meta.getIdColumnMeta().convertFromStorage2(name);
   Object val = colMeta.convertFromStorage2(value);
   // TODO:  parameterize timeColumn and valueColumn from options
   TSRelational tv = new TSRelational("time", "value");
   tv.put("time", time);
   tv.put(colMeta.getColumnName(), val);
   return new ReadResult(url, tv);
 }