我已经在 Google Cloud Bigquery 上部署了我的网络应用程序，当我查询数据时出现错误"400 No matching signature for operator BETWEEN for argument types: DATE, STRING, STRING. Supported signature: (ANY) BETWEEN (ANY) AND (ANY) at [2:38]"。这是我的sql：
"""SELECT
Record_Start_Time, Generator_Power
FROM
Furnace.FurnaceData
WHERE
Record_Start_Time BETWEEN TIMESTAMP("2018-01-21")
AND
TIMESTAMP("2018-07-21")
ORDER BY Record_Start_Time
LIMIT 100""".format(request.form['start'],request.form['end'])