title: Comment character/characters in postgres / postgresql / psql?
body: <p>What's the character for comments in postgres?</p>
  
  <pre><code>SELECT * FROM my_table     # pound  sign produces a syntax error
  </code></pre>
  
  <p>Thank you cababunga, the following appears to work:</p>
  
  <pre><code>SELECT * FROM my_table     -- this is my comment
  </code></pre>
  
  <p>But this does not work:</p>
  
  <pre><code>\dt jvcurve_thin.jvcurve_results    --  my comment #2
  </code></pre>
  
  <p>\dt: extra argument "--" ignored</p>