title: Convert number to string in n1ql query output from Couchbase DB
body: <p>I need the below value as a string in N1QL query output from Couchbase DB.</p>
  
  <p>Current - </p>
  
  <pre><code>"cas": 1499937943452123136
  </code></pre>
  
  <p>Expected - </p>
  
  <pre><code>"cas": "1499937943452123136"
  </code></pre>
  
  <p>Cbq Query:</p>
  
  <pre><code>select meta().cas from sampledb where type = "PROD" and Id = 
  "PROD_101"
  </code></pre>
  
  <p>Request your help.</p>