As a workaround, create a table with only one column and one value = `false` and foreign to it. On 22.11.2019 16:32, aleksey ksenzov wrote:
Latest time we faced several issues which wouldn't arise provided we have possibility to use constants in foreign key constraints. brief example where it would be helpful: table_a ( id uuid, parent_id uuid, is_deleted boolean ) having possibility of FK (parent_id, false) to (id, is_deleted) would disallow setting parent record deleted flag to true if they have children, or insert record with is_deleted = true parent.
