new_contents: from __future__ import unicode_literals
  import logging
  
  from django.core.management.base import BaseCommand
  from django.apps import apps
  from django.db import connection
  
  logger = logging.getLogger(__name__)
  
  class Command(BaseCommand):
      """Runs VACUUM [ANALYZE] on tables.
  
      Examples:
  
          python manage.py vacuum --dry osf.OSFUser
          python manage.py vacuum --analyze osf.OSFUser
          python manage.py vacuum osf.OSFUser osf.Node
      """
      def add_arguments(self, parser):
          super(Command, self).add_arguments(parser)
          parser.add_argument('models', nargs='+', type=str)
          parser.add_argument(
              '--analyze',
              action='store_true',
              dest='analyze',
              help='Whether to run VACUUM ANALYZE'
          )
          parser.add_argument(
              '--dry',
              action='store_true',
              dest='dry',
              help='If true, no SQL commands will be executed'
          )
  
      def handle(self, *args, **options):
          analyze = options.get('analyze', False)
          model_names = options.get('models', [])
          dry = options.get('dry', False)
          models = [
              apps.get_model(each)
              for each in model_names
          ]
          table_names = [
              each._meta.db_table
              for each in models
          ]
          statement_format = 'VACUUM ANALYZE {table};' if analyze else 'VACUUM {table};'
          statements = [
              statement_format.format(table=table)
              for table in table_names
          ]
          if dry:
              for statement in statements:
                  logger.info('[DRY]: {}'.format(statement))
          else:
              with connection.cursor() as cursor:
                  for table in table_names:
                      statement = statement_format.format(table=table)
                      logger.info(statement)
                      cursor.execute(statement)
  
subject: Add management command for running VACUUM [ANALYZE]