data = [{'value': '', 'text': '全部'}]
try:
    async with get_sor_context(request._run_ns, 'pipeline') as sor:
        rows = await sor.sqlExe('select id as value, name as text from distributors order by name', {})
        data.extend(list(rows))
except Exception as e:
    debug('error: ' + str(e))
return json.dumps(data, ensure_ascii=False)