title: Select rows from datatable with distinct column values
body: <p>I have a datatable that has duplicate ID's. </p>
  
  <pre><code>1 data moredata  4354
  1 data moredata  4354
  2 data moredaaata  4asdfdsa4
  3 dasata edaaata  42342fdsa4
  2 data moredaaata  4asdfdsa4
  </code></pre>
  
  <p>I want to get a datatable from that table with just row for each of the first column value like this: (does not need to be in order)</p>
  
  <pre><code>1 data moredata  4354
  2 data moredaaata  4asdfdsa4
  3 dasata edaaata  42342fdsa4
  </code></pre>
  
  <p>How can I do this?</p>