title: Is sql IN clause with single parameter the same as a query for single column?
body: <p>In case I only provide a single value, are the following <code>sql</code> statements equivalent (eg in terms of performance)?</p>
  
  <pre><code>SELECT * FROM mytable where lastname IN(:lastnames);
  SELECT * FROM mytable where lastname = :lastname;
  </code></pre>
  
  <p>Background: I have service that should serve a list, and a service that serves a single result. Now I thought why creating two database query endpoints, if I could achieve the same thing with just one query (means: also a single result could be queried by using the <code>IN</code> clause).</p>