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https://issues.apache.org/jira/browse/LUCENE-6305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand updated LUCENE-6305:
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Attachment: LUCENE-6305.patch
I think this issue is important if we want to be able to cache boolean queries
efficiently.
Here is a patch, it adds a simple HashMap-based Multiset (bag) implementation
to oal.util and uses it in BooleanQuery so that the order in which clauses are
added does not matter.
> 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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