I am using the guide found here (
http://www.lucidimagination.com/blog/2009/09/08/auto-suggest-from-popular-queries-using-edgengrams/)
to build an autocomplete search capability but in my data set I have some
documents which have the same value for the field that is being returned, so
for instance I have the following being returned:

A test document to see how this works
 A test document to see how this works
 A test document to see how this works
A test document to see how this works
 A test document to see how this works

I'm wondering if there is something I can specify that I want only unique
results to come back.  I know I can do some post processing of the results
to make sure that only unique items come back, but I was hoping there was
something that could be done to the query.  Any thoughts?

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