text: --liquibase formatted sql
  --changeset jgke:7
  
  CREATE TABLE comments (
      id SERIAL UNIQUE,
      comment varchar(4000),
      person integer,
      source integer,
      CONSTRAINT comments_person_fk
      FOREIGN KEY (person) REFERENCES persons(id),
      CONSTRAINT comments_source_fk
      FOREIGN KEY (source) REFERENCES sources(id)
  );
  --rollback DROP TABLE comments;
  