[jira] [Updated] (LUCENE-8341) Record soft deletes in SegmentCommitInfo

["Simon Willnauer (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-8341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Simon Willnauer updated LUCENE-8341:
------------------------------------
    Attachment: LUCENE-8341.patch

>  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, 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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