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https://issues.apache.org/jira/browse/LUCENE-7344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253513#comment-17253513
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David Smiley commented on LUCENE-7344:
--------------------------------------

I know it's been 4 years but I want to add that a Lucene Query has a Weight 
with a relatively new method, {{isCacheable}} that is a reasonable 
approximation for wether Solr DBQ processing could skip the realtimeSearcher 
reopen.  This method must return false if there are any DocValue dependent 
clauses in the Query.  It can also return false in some other cases (e.g. 
BooleanQuery with many clauses) but usually it will not.

> Deletion by query of uncommitted docs not working with DV updates
> -----------------------------------------------------------------
>
>                 Key: LUCENE-7344
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7344
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Ishan Chattopadhyaya
>            Priority: Major
>         Attachments: LUCENE-7344.patch, LUCENE-7344.patch, LUCENE-7344.patch, 
> LUCENE-7344.patch, LUCENE-7344.patch, LUCENE-7344.patch, 
> LUCENE-7344_hoss_experiment.patch
>
>
> When DVs are updated, delete by query doesn't work with the updated DV value.



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