title: How to use count(*) WHERE IN in mysql
body: <pre><code>SELECT COUNT(*) FROM `product` where barcode in (681155,
  681144,
  681145,
  681146,
  681147,
  681148,
  688123,
  688124,
  688125,
  688126) GROUP BY(barcode);
  </code></pre>
  
  <p>how to use count(*) for this statement? I get 1 for all the rows</p>