The `key` field is often (`_get_view_id`/`_get_specific_views`) used to find an ir_ui_view. Because `key` doesn't have index, PostgreSQL will always do a SeqScan. Because the table is small, it doesn't create a huge performance bottleneck, but it still not very efficient. closes odoo/odoo#97478 Signed-off-by: Julien Castiaux <juc@odoo.com>