DO NOT REPLY [Bug 34477] New: - You cannot sort on fields that don't exist

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http://issues.apache.org/bugzilla/show_bug.cgi?id=34477

           Summary: You cannot sort on fields that don't exist
           Product: Lucene
           Version: CVS Nightly - Specify date in submission
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Search
        AssignedTo: lucene-dev@jakarta.apache.org
        ReportedBy: daniel.naber@t-online.de


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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