Timestamp类型无法转换为DataX的String类型

2018-04-28 18:09:13.862 [0-0-9-writer] ERROR StdoutPluginCollector - 脏数据:
{"exception":"TIMESTAMP 类型转换错误：[{\"byteSize\":10,\"rawData\":\"order_time\",\"type\":\"STRING\"}]"

同时我改为转换Date类型，同样无法转换：
2018-04-28 18:25:28.658 [0-0-1-reader] ERROR StdoutPluginCollector - 脏数据:
{"message":"类型转换错误, 无法将[order_time] 转换为[DATE]"

Start by reproducing the logged failures when the order_time TIMESTAMP is converted to DataX STRING and DATE types, then trace the relevant type-conversion path in DataX. Done means the reported timestamp field converts successfully without producing dirty-data errors.

Written by the indexing model from the issue text.