text: CREATE TABLE IF NOT EXISTS Item
  (
      id           int PRIMARY KEY,
      name         varchar(32) NOT NULL,
      time_to_cook int         NOT NULL DEFAULT 10
  );
  CREATE SEQUENCE IF NOT EXISTS item_id_seq INCREMENT 1 START WITH 1000;
  
  CREATE TABLE IF NOT EXISTS Tables
  (
      id    int PRIMARY KEY,
      seats int NOT NULL
  );
  
  CREATE TABLE IF NOT EXISTS Orders
  (
      id           int PRIMARY KEY,
      item_id      int NOT NULL ,
      table_id     int NOT NULL ,
      quantity     int NOT NULL default 1,
      CONSTRAINT fk_item FOREIGN KEY(item_id) REFERENCES Item(id),
      CONSTRAINT fk_table FOREIGN KEY(table_id) REFERENCES Tables(id)
  );
  
  CREATE SEQUENCE IF NOT EXISTS order_id_seq INCREMENT 1 START WITH 1000;
  
  TRUNCATE Orders CASCADE;
  TRUNCATE Item CASCADE ;
  TRUNCATE Tables;
  