java - Are these limitations still there when using JPA with Cloud SQL? -

java - Are these limitations still there when using JPA with Cloud SQL? -

i uncertainty still want confirm if these limitations still there or not when using jpa cloud sql.

unsupported features of jpa 1.0

the next features of jpa interface not supported app engine implementation:

owned many-to-many relationships, , unowned relationships. can implement unowned relationships using explicit key values, though type checking not enforced in api. "join" queries. cannot utilize field of kid entity in filter when performing query on parent kind. note can test parent's relationship field straight in query using key. aggregation queries (group by, having, sum, avg, max, min). polymorphic queries. cannot perform query of class instances of subclass. each class represented separate entity kind in datastore.

those limitations apply jpa 1.0 datastore. cloud sql using native mysql driver in app engine jpa should work (there examples eclipselink, datanucleus , hibernate).

java google-app-engine jpa google-cloud-sql