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      1 def migrate_up(manager):
      2     manager.execute('ALTER TABLE host_queue_entries '
      3                     'ADD COLUMN `aborted` bool NOT NULL DEFAULT FALSE')
      4     manager.execute("UPDATE host_queue_entries SET aborted = true WHERE "
      5                     "status IN ('Abort', 'Aborting', 'Aborted')")
      6 
      7 
      8 def migrate_down(manager):
      9     manager.execute("UPDATE host_queue_entries SET status = 'Abort' WHERE "
     10                     "aborted AND status != 'Aborted'")
     11     manager.execute('ALTER TABLE host_queue_entries DROP COLUMN `aborted`')
     12