 
 CREATE TABLE project (
     id integer NOT NULL,
-    label character varying NOT NULL
+    label character varying NOT NULL UNIQUE
 );
 
 


CREATE TABLE "user" (
    id integer NOT NULL,
    label character varying NOT NULL,
    is_admin boolean NOT NULL,
    hashed_password character varying
);


CREATE TABLE node (
    id integer NOT NULL,
    label character varying NOT NULL UNIQUE,
    project_id integer,
    obm_id integer NOT NULL
);
