title: Base access to DynamoDB Records off of a attribute in a record
body: <p>I am looking to limit access to my dynamodb records based off of an attribute in a table.  From the documentation I read, there does not seem to be a straightforward way to do this unless I have made a huge error.  Here is an example of what I would like to accomplish:</p>
  
  <pre><code>Table 1
  userid
  groups &lt;-- (a list of groupids that the user belongs to)
  
  
  Table 2
  groupid
  data
  someotherdata
  </code></pre>
  
  <p>I would like the user in Table 1 to be able to have full access to the information in table 2.  Is this possible via dynamodb?</p>
  
  <p>Thanks</p>