Question on ICUFoldingFilterFactory

[Nemani, Raj]

Hello,

I was wondering if anybody who has experience with ICUFoldingFilterFactory can 
help out with the following issue.  Thank you so much in advance.

Raj

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Problem:
When a document is created/updated, the value's casing is indexed properly. 
However, when it's queried, the value is returned in lowercase.
Example:
Document input: NBAE
Document value: NBAE
Query input: NBAE,nbae,Nbae...etc
Query Output: nbae

If I remove the ICUFoldingFilterFactory filter, the casing problem goes away, 
but I then searches for nbae (lowercase) or Nbae (mix case) return no values.


Field Type:
<fieldType name="text_phrase" class="solr.TextField" positionIncrementGap="20" 
autoGeneratePhraseQueries="true">
      <analyzer>
                                <filter 
class="solr.PatternReplaceFilterFactory" pattern="\s&amp;\s" 
replacement="\sand\s"/>
                                <charFilter 
class="solr.PatternReplaceCharFilterFactory" pattern="[\p{Punct}\u00BF\u00A1]" 
replaceWith=" "/>
                    <tokenizer class="solr.KeywordTokenizerFactory"/>
                                <filter class="solr.TrimFilterFactory" />
                                <filter 
class="solr.PatternReplaceFilterFactory" pattern="[\p{Cntrl}]" replacement=""/>
        <filter class="solr.ICUFoldingFilterFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" 
words="stopwords_en.txt" enablePositionIncrements="true" />
      </analyzer>
    </fieldType>


Let me know if that makes sense. I'm curious if the 
solr.ICUFoldingFilterFactory has additional attributes that I can use to 
control the casing behavior but retain it's other filtering properties 
(ASCIIFoldingFilter,  and ICUNormalizer2Filter)

Thanks!!!