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Alex Rivera
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I am storing a key of an entity as a property of another in order to relate them. We are in a refactor stage at this point in the project so I was thinking about introducing ancestors. Is there a performance difference between the two approaches? Any given advantages that I might gain if we introduce ancestors? class Book(ndb.Model): ... class Article(ndb.Model): book_key = ndb.KeyProperty(kind=Book, required=True) book_key = ndb.Key("Book", 12345) 1st ancestor query approach qry = Article.query(ancestor=book_key) 2st simple key query approach qry = Article.query(book_key=book_key)
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