- more hints to avoid index FAST FULL SCANs
- initialize varNSFileIds array to avoid 'ORA-06531' errors
- renamed updateStagerTime to update2114Data: this procedure
  is supposed to be dropped after the Nameserver post-upgrade
  script is run and the newly introduced metadata is updated.
  The name reflects the fact that the procedure anticipates
  for Repack what the job in the post-upgrade script does
  in background for all files.