title: Heroku Postgres database size doesn't go down after deleting rows
body: <p>I'm using a Dev level database on Heroku that was about 63GB and approaching about 9.9 million rows (close to the limit of 10 million for this tier). I ran a script that deleted about 5 million rows I didn't need, and now (few days later) in the Postgres control panel/using <code>pginfo:table-size</code> it shows roughly 4.7 million rows but it's still at 63GB. 64 is the limit for he next tier so I need to reduce the size. </p>
  
  <p>I've tried vacuuming but <code>pginfo:bloat</code> said the bloat was only about 3GB. Any idea what's happening here?</p>