I've read the consistency page on
now i know that for queries to be consistent you need to use ancestor queries.
What about single key? query for example:
Entity e = datastore.get(Key)
are they eventually consistent or strongly consistent?
please do cite references or links
Yes, a get with a specific key is always consistent.
The documentation isn't as clear about this as it could be, but a get is not a query: it's a simple lookup in what is basically a key-value store. That will always return the correct data. It is only queries that can be inconsistent, because they must be done against indexes and the index update can lag.