title: Does rocksdb support basic key concepts?
body: <p><strong>Rocks Db:</strong>
  Hi, I am working on rocks db use case. Below are some questions i am trying to understand , any help would be appreciated:</p>
  <ol>
  <li>How does primary and partition key defined in rocks database?</li>
  <li>Does rocks db support indexing?</li>
  </ol>