title: Postgresql generate_series of months
body: <p>I'm trying to generate a series in PostgreSQL with the generate_series function. I need a series of months starting from Jan 2008 until <code>current month + 12</code> (a year out). I'm using and restricted to PostgreSQL 8.3.14 (so I don't have the timestamp series options in 8.4).</p>
  
  <p>I know how to get a series of days like:</p>
  
  <pre><code>select generate_series(0,365) + date '2008-01-01'
  </code></pre>
  
  <p>But I am not sure how to do months.</p>