Lucene Sorting

[pankaj.pandey4]

Hi,

We are facing sorting issue on the data indexed using Solr. Below is the sample 
code. Problem is, data returned by the below code is not properly sorted i.e. 
there's no ordering of data. Can anyone assist me on this?

TopDocs topDocs = null;
  Directory directory = FSDirectory.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(IndexReader.open(directory));
Sort column = new Sort(new SortField(sortColumn, SortField.STRING, reverse));
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_36);
queryParser = new QueryParser(Version.LUCENE_36, fieldName, analyzer);
  queryParser.setAllowLeadingWildcard(true);
  queryParser.setDefaultOperator(Operator.AND);
topDocs = searcher.search(queryParser.parse(queryStr), filter, maxHits, column);

Thanks!

Regards,
Pankaj

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Re: SOLR/Lucene sorting - Question/ requesting suggestion

[Ryan McKinley]

Kasi Sankaralingam wrote:

When we have the following set of data, they are first sorted based on Capital 
letters and then lower case
. Is there a way to make them sort regardless of character case?

Avaneesh
Bruce
Veda
caroleY
jonathan
junit

So carole would come after Bruce. Thanks



sorting is based on the token, not the stored field.  Use a fieldType 
that includes the LowerCaseFilterFactory


Check the 'alphaOnlySort' fieldType in the example schema.xml -- that 
makes a token with lowercase and tosses any non letters (you can get rid 
of the PatternReplaceFilterFactory but it is a good example)


ryan

SOLR/Lucene sorting - Question/ requesting suggestion

[Kasi Sankaralingam]

When we have the following set of data, they are first sorted based on Capital 
letters and then lower case
. Is there a way to make them sort regardless of character case?

Avaneesh
Bruce
Veda
caroleY
jonathan
junit

So carole would come after Bruce. Thanks