docs: public void notifyOfCatalogUpdate() {
          m_catalogContext.set(VoltDB.instance().getCatalogContext());
          /*
           * Update snapshot daemon settings.
           *
           * Don't do it if the system is still initializing (CL replay),
           * because snapshot daemon may call @SnapshotScan on activation and
           * it will mess replaying txns up.
           */
          if (VoltDB.instance().getMode() != OperationMode.INITIALIZING) {
              mayActivateSnapshotDaemon();
  
              //add a notification to client right away
              StoredProcedureInvocation spi = new StoredProcedureInvocation();
              spi.setProcName("@SystemCatalog");
              spi.setParams("PROCEDURES");
              spi.setClientHandle(ASYNC_PROC_HANDLE);
              notifyClients(m_currentProcValues,m_currentProcSupplier,
                             spi, OpsSelector.SYSTEMCATALOG);
          }
      }