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https://issues.apache.org/jira/browse/SOLR-10046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16149423#comment-16149423
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ASF subversion and git services commented on SOLR-10046:
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Commit 4174d0b6ff7ad7a3690a2696e098caff0dc533ab in lucene-solr's branch
refs/heads/branch_7x from [~ctargett]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=4174d0b ]
Ref Guide: Doc updates for SOLR-10046, SOLR-10929, SOLR-11021
> Create UninvertDocValuesMergePolicy
> -----------------------------------
>
> Key: SOLR-10046
> URL: https://issues.apache.org/jira/browse/SOLR-10046
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Keith Laban
> Assignee: Christine Poerschke
> Fix For: 7.0
>
>
> 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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