Initial commit

server/migrations/000002_ticket_reissue.up.sql

@@ -0,0 +1,16 @@
+ALTER TABLE queue_tickets
+    ADD COLUMN reissued_from_ticket_id uuid;
+
+ALTER TABLE queue_tickets
+    ADD CONSTRAINT queue_tickets_reissued_from_project_fk
+        FOREIGN KEY (reissued_from_ticket_id, project_id)
+        REFERENCES queue_tickets(id, project_id)
+        ON DELETE RESTRICT,
+    ADD CONSTRAINT queue_tickets_reissued_from_not_self_check
+        CHECK (reissued_from_ticket_id IS NULL OR reissued_from_ticket_id <> id),
+    ADD CONSTRAINT queue_tickets_reissued_from_once_unique
+        UNIQUE (reissued_from_ticket_id);
+
+CREATE INDEX queue_tickets_reissued_from_idx
+    ON queue_tickets (project_id, reissued_from_ticket_id)
+    WHERE reissued_from_ticket_id IS NOT NULL;