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Posted to dev@lucene.apache.org by "itai sason (JIRA)" <ji...@apache.org> on 2016/02/16 15:07:18 UTC

[jira] [Created] (LUCENE-7030) Implementation of customized grouping

itai sason created LUCENE-7030:
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             Summary: Implementation of customized grouping
                 Key: LUCENE-7030
                 URL: https://issues.apache.org/jira/browse/LUCENE-7030
             Project: Lucene - Core
          Issue Type: New Feature
            Reporter: itai sason


We would like to enable customized grouping in Lucene/Solr. Our need is to allow grouping by hamming distance of a text field. We started implementing this idea through editing several Lucene classes (Grouping, AbstractTermFirstPassGroupingCollector and AbstractTermSecondPassGroupingCollector) so that they receive custom logic to use for grouping. 



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