docs: public VoltTable[] run(SystemProcedureExecutionContext ctx,
                             String selector) throws VoltAbortException
      {
          VoltTable[] results;
  
          // This selector provides the old @SystemInformation behavior
          if (selector.toUpperCase().equals("OVERVIEW"))
          {
              results = getOverviewInfo();
          }
          else if (selector.toUpperCase().equals("DEPLOYMENT"))
          {
              results = getDeploymentInfo();
          }
          else
          {
              throw new VoltAbortException(String.format("Invalid @SystemInformation selector %s.", selector));
          }
  
          return results;
      }