title: Syntax error in a simple UPDATE query
body: <p>I have this query (PostgreSQL 9.1):</p>
  
  <pre><code>=&gt; update tbp set super_answer = null where packet_id = 18;
  ERROR:  syntax error at or near "="
  </code></pre>
  
  <p>I don't get it. I'm really out of words here.</p>
  
  <pre><code>                Table "public.tbp"
      Column    |          Type          | Modifiers 
  --------------+------------------------+-----------
   id           | bigint                 | not null
   super_answer | bigint                 | 
   packet_id    | bigint                 | 
  </code></pre>