Session Handling for SQLAlchemy backend
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nova.db.sqlalchemy.session.get_engine()
Return a SQLAlchemy engine.
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nova.db.sqlalchemy.session.get_maker(engine, autocommit=True, expire_on_commit=False)
Return a SQLAlchemy sessionmaker using the given engine.
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nova.db.sqlalchemy.session.get_session(autocommit=True, expire_on_commit=False)
Return a SQLAlchemy session.