sudo -u postgres psql keystone
keystone=# ALTER TABLE tenants add COLUMN enabled2 boolean;
ALTER TABLE
keystone=# ALTER TABLE tenants RENAME enabled TO enabled3;
ALTER TABLE
keystone=# ALTER TABLE tenants RENAME enabled2 TO enabled;
ALTER TABLE
keystone=# \q
FYI, I fixed the bug this way:
sudo -u postgres psql keystone
keystone=# ALTER TABLE tenants add COLUMN enabled2 boolean;
ALTER TABLE
keystone=# ALTER TABLE tenants RENAME enabled TO enabled3;
ALTER TABLE
keystone=# ALTER TABLE tenants RENAME enabled2 TO enabled;
ALTER TABLE
keystone=# \q