text: 
  SET ROLE db_owner;
  
  CREATE TABLE "conversation_comment" (
    id              BIGSERIAL     PRIMARY KEY,
    privacy         privacy_level NOT NULL DEFAULT 'private',
    conversation_id BIGINT        NOT NULL,
    author_id       BIGINT        NOT NULL,
    body            TEXT,
    created_at      timestamptz   NOT NULL DEFAULT NOW()
  );
  COMMIT;
  