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From "Keith Laban (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-10046) Create UninvertDocValuesMergePolicy
Date Thu, 26 Jan 2017 15:31:24 GMT
Keith Laban created SOLR-10046:
----------------------------------

             Summary: Create UninvertDocValuesMergePolicy
                 Key: SOLR-10046
                 URL: https://issues.apache.org/jira/browse/SOLR-10046
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Keith Laban


Create a merge policy that can detect schema changes and use UninvertingReader to uninvert
fields and write docvalues into merged segments when a field has docvalues enabled.

The current behavior is to write null values in the merged segment which can lead to data
integrity problems when sorting or faceting pending a full reindex. 

With this patch it would still be recommended to reindex when adding docvalues for performance
reasons, as it not guarenteed all segments will be merged with docvalues turned on.



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