title: Distinct clause on one attribute and another attribute at random
body: <p>Suppose i have this table:</p>
  
  <pre><code>A          B          
  
  1          John Smith
  1          Mr. John Smith
  2          Tom Cruise
  2          The actor Tom Cruise
  3          Jim
  </code></pre>
  
  <p>I want to select distinct attributes A, but I don't care which of the records in B the query will return, because I know that, if two records they have the same attribute A, the attribute B will carry the same information, even it's not written in a standard way.</p>
  
  <p>I want a table like this:</p>
  
  <pre><code>A          B          
  
  1          John Smith
  2          The actor Tom Cruise
  3          Jim
  </code></pre>
  
  <p>What is the query I should use?
  I appreciate any help you can provide.</p>