<dataConfig>
  <dataSource type="JdbcDataSource"
            driver="com.mysql.jdbc.Driver"
            url="jdbc:mysql://localhost:3306/employees"
            user="user"
            password="password" />
  <document>
    <entity name="id" query="select emp_no as 'id', first_name, last_name from employees limit 1000;" />
  </document>
</dataConfig>