I'm using Google AppEngine with build-in datastore. But, I want move all datastore to my new VPS.
I'll use Apache Cassandra. How to move from GAE Datastore to Apache Cassandra?
Google App Engine (GAE) is a platform-as-a-service product that provides web app developers and enterprises with access to Google's scalable hosting and tier 1 internet service.
Google Cloud Datastore (Cloud Datastore) is a highly scalable, fully managed NoSQL database service offered by Google on the Google Cloud Platform. Cloud Datastore is built upon Google's Bigtable and Megastore technology.
Firestore is the newest version of Datastore and introduces several improvements over Datastore. Existing Datastore users can access these improvements by creating a new Firestore in Datastore mode database instance.
Datastore is a highly scalable NoSQL database for your web and mobile applications.
My guess is you're looking at a tool such as the bulk loader/downloader:
http://code.google.com/appengine/docs/python/tools/uploadingdata.html
You'll want to export all your data into CSV, then write a script to import this into any new format you want.
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