在默认bulkloader.yaml它曾这样说:gae bulkloader将不会解析导入时的密钥名称?
# - Check that __key__ property is what you want. Its value will become
# the key name on import, and on export the value will be the Key
# object. If you would like automatic key generation on import and
# omitting the key on export, you can remove the entire __key__
# property from the property map.
所以我假设默认的实现:
- property: __key__
external_name: key
export_transform: transform.key_id_or_name_as_string
应该在我的CSV文件导入键列到没有问题的数据存储。但它似乎什么都不做。 (其他列虽然解析得很好)