title: Linq-to-sql speed when getting table count
body: <p>Is this:</p>
  
  <pre><code>Dim mydata = (From c In dc.Table Select New With {c.ID}).Count
  </code></pre>
  
  <p>any faster than this:</p>
  
  <pre><code>Dim mydata = (From c In dc.Table Select c).Count
  </code></pre>
  
  <p>assuming the table has a good number of fields?</p>