title: DataTable internal index is corrupted: '5'.used in threading
body: <p>I have used a static Global dataset shared between a number of threads.</p>
  
  <p>I got the following exception :</p>
  
  <blockquote>
    <p>Data Table internal index is
    corrupted: '5'.</p>
  </blockquote>
  
  <p>In threading, I read the value from the datatable &amp; update(used merge) the value in datatable both operation done in threading.</p>