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Posted to dev@lucene.apache.org by "Simon Willnauer (JIRA)" <ji...@apache.org> on 2018/03/12 14:00:02 UTC
[jira] [Commented] (LUCENE-8200) Allow doc-values to be updated
atomically together with a document
[ https://issues.apache.org/jira/browse/LUCENE-8200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16395263#comment-16395263 ]
Simon Willnauer commented on LUCENE-8200:
-----------------------------------------
here is a github commit for reference https://github.com/s1monw/lucene-solr/commit/ff6bd484590a02d169b9259a465ce70069f83e82
> Allow doc-values to be updated atomically together with a document
> -------------------------------------------------------------------
>
> Key: LUCENE-8200
> URL: https://issues.apache.org/jira/browse/LUCENE-8200
> Project: Lucene - Core
> Issue Type: Improvement
> Affects Versions: 7.4, master (8.0)
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Priority: Major
> Attachments: LUCENE-8200.patch
>
>
> Today we can only update a document by deleting all previously indexed documents for the given term. In some cases like when deletes are not `final` in the way that documents that are marked as deleted should not be merged away a `soft-delete` is needed which is possible when doc-values updates can be done atomically just like delete and add in updateDocument(s)
>
> This change introduces such a soft update that reuses all code paths from deletes to update all previously updated documents for a given term instead of marking it as deleted. This is a spinnoff from LUCENE-8198
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