title: How to do group_concat in select query in Sequelize?
body: <p>I want to do GROUP_CONCAT in select query in sequelize here is my requirement what i want</p>
  
  <pre><code>SELECT `group_name`, `description`, GROUP_CONCAT(`module_name`) FROM `group_access` GROUP BY `group_name`
  </code></pre>
  
  <p>I want to write this type of query in sequelize.</p>
  
  <p>This is what i tried.</p>
  
  <pre><code>groupAccess.findAll({
      attributes: ['group_name', 'description', 'GROUP_CONCAT(module_name)'],
      group: ['group_name']
  })
  </code></pre>
  
  <p>But it is showing error <code>Unknown column 'GROUP_CONCAT(module_name)' in 'field list'</code></p>
  
  <p>How to write GROUP_CONCAT in sequelize. I even searched in there website but not found any solution. any help will be appreciated.</p>