docs: def tablespace_list(user=None, host=None, port=None, maintenance_db=None,
                      password=None, runas=None):
      '''
      Return dictionary with information about tablespaces of a Postgres server.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' postgres.tablespace_list
  
      .. versionadded:: 2015.8.0
      '''
  
      ret = {}
  
      query = (
          'SELECT spcname as "Name", pga.rolname as "Owner", spcacl as "ACL", '
          'spcoptions as "Opts", pg_tablespace_location(pgts.oid) as "Location" '
          'FROM pg_tablespace pgts, pg_roles pga WHERE pga.oid = pgts.spcowner'
      )
  
      rows = __salt__['postgres.psql_query'](query, runas=runas, host=host,
                                             user=user, port=port,
                                             maintenance_db=maintenance_db,
                                             password=password)
  
      for row in rows:
          ret[row['Name']] = row
          ret[row['Name']].pop('Name')
  
      return ret