Length of an attribute in fetchXml

Question

Hi,

Is it possible in a fetchXml to retreive the length of the value of an attribute ?
For example in the following example, I would like to get the length of the content instead to retreive the content.

<fetch mapping="logical" no-lock="true" version="1.0" top="100">  
  <entity name="pluginassembly">  
    <attribute name="name" />  
    <attribute name="content" />  
  </entity>  
</fetch>  

Thanks for advance
Jean-Pierre