Generic filter support for volume queries
Generic filter support for volume queries

The filtering support of the volume DB APIs is inconsistent. For example,
filtering is supported when querying all volumes and when querying volumes
by project. However, filtering is not supported when querying volumes by host
or by group.

blueprint db-volume-filtering

Change-Id: I0c3e4a2f833c0f4e1e22cbda90fdcf90726e6544

openstack/cinder-specs