await using cn = await pool.connect();
    const records = await cn.query<MyType>`
      SELECT ...
      FROM ...
      WHERE ...
    `;
    for await (const record of records) {
      ...
    }

  var records = jdbcClient
     .sql("select * from posts")
     .query(Post.class)
     .toList();
     
  records.forEach(p -> ...);