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https://issues.apache.org/jira/browse/LUCENE-6305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14593467#comment-14593467
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Terry Smith commented on LUCENE-6305:
-------------------------------------

Slightly off topic to your original goal, but what do you think about deduping 
repeated non scoring (FILTER, MUST_NOT) clauses from the list in the query or 
do you see that as an possible optimization when building the weights/scorers?




> BooleanQuery.equals should ignore clause order
> ----------------------------------------------
>
>                 Key: LUCENE-6305
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6305
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>         Attachments: LUCENE-6305.patch
>
>
> BooleanQuery.equals is sensible to the order in which clauses have been 
> added. So for instance "+A +B" would be considered different from "+B +A" 
> although it generates the same matches and scores.



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