text: CREATE TABLE changesets (
      id bigint NOT NULL,
      measurements jsonb,
      counts jsonb,
      total_edits integer,
      editor text,
      user_id integer,
      created_at timestamp with time zone,
      closed_at timestamp with time zone,
      augmented_diffs integer[],
      updated_at timestamp with time zone,
      PRIMARY KEY(id)
  );
  
  CREATE INDEX changesets_user_id ON changesets(user_id);
  