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https://issues.apache.org/jira/browse/LUCENE-8341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497237#comment-16497237
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Robert Muir commented on LUCENE-8341:
-------------------------------------
Yes I agree it is a shame CheckIndex cannot enforce the check yet. But there
are many other such possible checks (ones i would argue are more
mainstream/bigger wins) that it also can't do for similar reasons. That was the
reason why I made the point on the LUCENE-8335 issue, lets just figure it out
there.
> Record soft deletes in SegmentCommitInfo
> -----------------------------------------
>
> Key: LUCENE-8341
> URL: https://issues.apache.org/jira/browse/LUCENE-8341
> Project: Lucene - Core
> Issue Type: Improvement
> Affects Versions: 7.4, master (8.0)
> Reporter: Simon Willnauer
> Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: LUCENE-8341.patch, LUCENE-8341.patch, LUCENE-8341.patch
>
>
> This change add the number of documents that are soft deletes but
> not hard deleted to the segment commit info. This is the last step
> towards making soft deletes as powerful as hard deltes since now the
> number of document can be read from commit points without opening a
> full blown reader. This also allows merge posliies to make decisions
> without requiring an NRT reader to get the relevant statistics. This
> change doesn't enforce any field to be used as soft deletes and the
> statistic
> is maintained per segment.
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