Thanks for the help Mathieu. Now I know why that script exists :) On 8/20/14, 6:55 PM, "Mathieu Gagné" <[email protected]> wrote:
>On 2014-08-20 6:42 PM, Murali Balcha wrote: >> >> I can successfully add string column parent_id without any problem. >> However adding a boolean column is vexing. Adding a boolean column adds >> a check constraint on the table but when I remove the column in the >> downgrade, the check constraint for snapshot still remains on the table >> which resulting in the following exception. Has anyone run into this >> problem? >> >> OperationalError: (OperationalError) no such column: snapshot u'\nCREATE >> TABLE backups (\n\tcreated_at DATETIME, \n\tupdated_at DATETIME, >> \n\tdeleted_at DATETIME, \n\tdeleted BOOLEAN, \n\tid VARCHAR(36) NOT >> NULL, \n\tvolume_id VARCHAR(36) NOT NULL, \n\tuser_id VARCHAR(255), >> \n\tproject_id VARCHAR(255), \n\thost VARCHAR(255), >> \n\tavailability_zone VARCHAR(255), \n\tdisplay_name VARCHAR(255), >> \n\tdisplay_description VARCHAR(255), \n\tcontainer VARCHAR(255), >> \n\tstatus VARCHAR(255), \n\tfail_reason VARCHAR(255), >> \n\tservice_metadata VARCHAR(255), \n\tservice VARCHAR(255), \n\tsize >> INTEGER, \n\tobject_count INTEGER, \n\tparent_id VARCHAR(255), >> \n\tPRIMARY KEY (id), \n\tCHECK (deleted IN (0, 1)), \n\tCHECK (snapshot >> IN (0, 1))\n)\n\n' () >> > >I had a similar issue when trying to add a boolean column to >volume_types in Cinder. It looks sqlite does not support DROP CHECK >required by the downgrade process, therefore resulting in the error you >see. > >You have to create a sql script specifically for sqlite. > >See my change: https://review.openstack.org/#/c/114395/6 > >In cinder/db/sqlalchemy/migrate_repo/versions/024_sqlite_downgrade.sql > >The "hack" consists of creating a new table without the column and >copying over the data to it. > >-- >Mathieu > >_______________________________________________ >OpenStack-dev mailing list >[email protected] >http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev _______________________________________________ OpenStack-dev mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
