title: Can I preserve nested schema in cosmosdb to spark connector?
body: <p>I have just started the azure cosmosdb to spark connector to bring in my cosmosdb collection into a spark dataframe.  Unfortunately, with a basic <strong>select * from coll</strong> query, it flattens any nested structure into a string.  The format of this string isnt even json, so I dont know how to parse it, the format looks like:</p>
  
  <pre><code>{key1=value,key2=anothervalue} 
  </code></pre>
  
  <p>Is there a way the cosmosdb connector can preserve the nested structure in spark, OR is there a way I can parse this string format in spark?</p>