def savepoint(using=None):
    if using is None:
        using = DEFAULT_DB_ALIAS
    connection = connections[using]
    return connection.savepoint()
Returns a new geometry consisting of the region of intersection of this
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/transaction.py/savepoint--crossover with--dataset/ETHPy150Open dcramer/django-compositepks/django/contrib/gis/gdal/geometries.py/OGRGeometry.intersection