title: OrientDB: list all indexes
body: <p>For the life of me I cannot figure out how to list all defined indexes within OrientDB. The following is the query syntax if you know the index name:</p>
  
  <p><code>SELECT FROM INDEX:&lt;index-name&gt; WHERE key = &lt;key&gt;</code> </p>
  
  <p>How can I get a list of the existing index-names?</p>