Quick Performance tip for CQWP

A quick tip for getting your Content Query Web Part results more quickly.Using ID attribute instead of using name attribute for FieldRef element.

A Good sample code for Performace

<Where> 
<Eq> 
<FieldRef ID="{ead7c4fb-4ae3-3496-b4bc-b77af4396a71}"></FieldRef> 
<Value Type="Text"> for good performace 
</Value>
</Eq> 
</Where>

  A bad sample code for Performace

<Query>
   <Where>
      <BeginsWith>
         <FieldRef Name="Title" />
             <Value Type="Text">it takes more time </Value>
     </BeginsWith> 
 </Where>
</Query>
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