我正在尝试在我的应用程序中实现此示例: https ://developers.google.com/appengine/docs/python/datastore/structuring_for_strong_consistency
我不断收到一条错误消息:BadQueryError: Parse Error: "IS" can only be used when comparison with "ANCESTOR" at symbol :1
在我的代码中指的是这一行:
result = db.GqlQuery("SELECT * FROM Image WHERE ANCESTER IS :1", get_gallery_key())
任何想法为什么?