title: Saving URL string column in psql database is causing Rails 3.2 to hang
body: <p>Trying to save an image url for example</p>
  
  <pre><code>http://ecx.images-amazon.com/images/I/51d2Qu4RGFL._BO2,204,203,200_PIsitb-sticker-arrow-click,TopRight,35,-76_AA300_SH20_OU01_.jpg
  </code></pre>
  
  <p>My Migration:</p>
  
  <pre><code>t.string   "promo_url"
  </code></pre>
  
  <p>My Form:</p>
  
  <pre><code>&lt;i class="icon-link"&gt;&lt;/i&gt;&lt;%= f.text_field :promo_url, autocomplete: "off", placeholder: "Image URL" %&gt;
  </code></pre>
  
  <p>hangs inexplicably and silently at Event#Create:</p>
  
  <pre><code>@event.save
  </code></pre>
  
  <p>Trace:</p>
  
  <pre><code>Request
  User Load (0.6ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 12 ORDER BY name LIMIT 1
  Event Load (0.4ms)  SELECT "events".* FROM "events" WHERE "events"."id" = $1 LIMIT 1  [["id", "64"]]
  (0.1ms)  BEGIN
  </code></pre>
  
  <p>Thanks for any help -- I've never seen rails server hang like this before.</p>