CREATE TABLE IF NOT EXISTS "day" ( "day" text NOT NULL PRIMARY KEY, "planned_amount_cox" integer NOT NULL DEFAULT 0, "planned_starting_time" text, "open_registration" boolean NOT NULL DEFAULT TRUE );
CREATE TABLE IF NOT EXISTS "user" ( "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT, "name" text NOT NULL UNIQUE, "pw" text, "is_cox" boolean NOT NULL DEFAULT FALSE, "add_different_user" boolean NOT NULL DEFAULT FALSE, "is_admin" boolean NOT NULL DEFAULT FALSE );
CREATE TABLE IF NOT EXISTS "trip" ( "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT, "day" text NOT NULL, "user_id" integer NOT NULL, "cox_id" integer, "begin" text, "created" text NOT NULL DEFAULT CURRENT_TIMESTAMP, FOREIGN KEY ("day") REFERENCES "day" ("day"), FOREIGN KEY ("user_id") REFERENCES "user" ("id"), FOREIGN KEY ("cox_id") REFERENCES "trip" ("id") );
create unique index UNIQ_trip on trip("day", "user_id", IFNULL(cox_id, ''), IFNULL(begin,''));