title: bulkCreate records using sequelize in nodejs
body: <p>Any way to do a bulk update, create using sequelize and postgres?</p>
  
  <p>I have tried the following:        </p>
  
  <pre><code>   sequelize.models.Location.bulkCreate(updatedPost.locations,
   { ignoreDuplicates: true }).then(function (locations) {
                              res.send(updatedPost);
                              res.end();
                          });
  </code></pre>
  
  <p>I got this error: </p>
  
  <blockquote>
    <p>postgres does not support the 'ignoreDuplicates' option.</p>
  </blockquote>