title: How to enable user defined functions in docker instance of cassandra?
body: <p>Getting the following error when i try to create a simple subtraction function in cassandra:</p>
  
  <pre><code>user defined functions are disabled in cassandra.yaml set enable user defined functions=true
  </code></pre>
  
  <p>I can't figure out how to set it to true.  Where do I go to do this?  I am running a docker instance of cassandra which makes it more difficult.</p>