Hongbin Lu f24f422373 Support fetching specific db column in OVO ... There is a analysis [1] suggested to run queries against specific columns rather than full ORM entities to optimize the performance. Right now, it is impossible to execute such optimization because OVO doesn't support fetching specific column yet. This commit introduces a new method 'get_values' in the base neutron object class. Subclass of neutron object can leverage this method to fetch specific field of a OVO. It supports fetching non-synthetic fields only as syntheic fields are not directly backed by corresponding DB table columns. neutron-lib patch: https://review.openstack.org/#/c/619047/ [1] https://review.openstack.org/#/c/592361/ Needed-By: https://review.openstack.org/#/c/610184/ Change-Id: Ib90eae7738a5d2e4548fe9fed001d6cdaffddf3b Partial-Implements: blueprint adopt-oslo-versioned-objects-for-db		2018-12-11 19:29:28 +00:00
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__init__.py	objects: support advanced criteria for get_objects	2016-05-31 12:23:13 +02:00
test_api.py	Support fetching specific db column in OVO	2018-12-11 19:29:28 +00:00