title: Disable Elixir Ecto Debug output
body: <p>Whatever in <code>iex&gt;</code> or using <code>mix run -e "My.code"</code> when I run the mix project using ecto, the Ecto's Debugging Mechanism display a bunch of SQLs like below </p>
  
  <pre><code>16:42:12.870 [debug] SELECT a0.`id` FROM `account` AS a0 WHERE (a0.`account_name` = ?) ["71000000313"] (39.6ms)`
  ...
  </code></pre>
  
  <p>When I dont need the debug output anymore, How can I turn it off, I cannot find anything about how to change ecto log level stuff.</p>
  
  <p>Thanks in advance.</p>