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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-459) Warnings needed for sorting on non existant or non indexed fields
Date Fri, 28 Oct 2005 02:08:55 GMT
Warnings needed for sorting on non existant or non indexed fields
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         Key: LUCENE-459
         URL: http://issues.apache.org/jira/browse/LUCENE-459
     Project: Lucene - Java
        Type: Bug
  Components: Search  
    Versions: CVS Nightly - Specify date in submission    
 Environment: Operating System: other
Platform: Other
    Reporter: Daniel Naber
 Assigned to: Lucene Developers 


While it's possible to search for fields that don't exist (you'll get 0 hits),  
you'll get an exception if you try to sort by a field that has no values. The  
exception is this:  
  
if (termEnum.term() == null) {  
  throw new RuntimeException ("no terms in field " + field);  
}  
  
I'll attach a change suggested by Yonik Seeley that removes this exception. 
 
Also, the if-condition above is incomplete anyway, so currently the exception 
is not always thrown (as termEnum .term() might well be != null but point to a 
term in a different field already)

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