Hi We have [1] in the db layer and it's directly used by API layer , the filters is directly from client's input In this case, when doing [2] or similar changes, do we need to consider microversion usage when we change options? Thanks [1] https://github.com/openstack/nova/blob/master/nova/db/sqlalchemy/api.py#L4440 [2] https://review.openstack.org/#/c/144883 Best Regards! Kevin (Chen) Ji 纪 晨 Engineer, zVM Development, CSTL Notes: Chen CH Ji/China/IBM at IBMCN Internet: jichenjc at cn.ibm.com Phone: +86-10-82454158 Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150612/9d8bcb92/attachment.html>