title: Using redis as a DB for some values
body: <p>I notice that all the examples of redis contains key-value option. </p>
  
  <p>For example:</p>
  
  <pre><code>key1 value1
  key2 value2
  key3 value3
  </code></pre>
  
  <p>But my DB is more complex, and I wish to support some values of keys.</p>
  
  <pre><code>key1 createday1 deleteday1 size1
  key2 createday2 deleteday2 size2
  key3 createday3 deleteday3 size3
  </code></pre>
  
  <p>Also, I wish to sort the DB by its createday, for example.</p>
  
  <p>Is redis support it?</p>