title: Custom Postgresql Sequence Nextval in SequelizeJS
body: <p>How can i define sequence <code>nextval()</code> in sequelizeJS Model. </p>
  
  <p>Is there any predefined function available for <code>nextval()</code> in sequelizeJS ?, </p>
  
  <p>Is there any possiblity to write sequence <code>nextval()</code> custom function inside sequelize define model ? </p>