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From: Urs Eichmann <urs.eichmann@prismanet.ch>
To: "'java-user@lucene.apache.org'" <java-user@lucene.apache.org>
Subject: Weird Problem with Lucene
Date: Wed, 22 Jun 2005 18:39:26 +0200
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My index consists of about 26 fields. I have a very wierd problem: On
certain fields, I cannot search - i.e. the search always returns 0
documents. I used Luke's Lucene Index Toolbox, and the behaviour there is
weird as well:
 
I do the following in Luke's Program:
 
a) go to the Documents Tab
b) Enter term field-name: unit and value="DOSE", hit "Show all docs"
c) A list of 5 documents is displayed, which is ok. The query is unit:DOSE.
The parsed query is unit:DOSE and the rewritten query is unit:dose
d) Then I just hit the "Search" button without changing the query
e) now the result list is empty. The only difference I can see is that the
parsed query is unit:dose now instead of unit:DOSE.
 
Does anyone have an explanation for this behaviour? The problem is, the same
behaviour is in my program, e.g. if I look for "unit:DOSE", I will get no
documents returned. However, on many of the other 26 fields, it runs OK, and
I can't see any difference in the field definitions.
 
I had this problem in 1.4.3, changed now to 1.9 RC1, but the problem is
still the same.
 
Many thanks for any help!
Urs
 

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