Delete entities from a datastore table without knowing ancestor
Provided you have indexed them to be queried by date, you can query the entities by date.
The query will return the entities of interest.  You can find out the ancestor of a given entity from its key - the ancestor's key is part of the entity's key.
Is it possible to delete entities from a datastore table without knowing their ancestor? I wish to delete all entities older than a specific date, but there are many different ancestors.