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https://issues.apache.org/jira/browse/LUCENE-6889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15108603#comment-15108603
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Stephan Lagraulet commented on LUCENE-6889:
-------------------------------------------

It depends what means "soon". Can it be included in a 5.4.2 release or do you 
prefer to push an early release of 5.5 ?

> BooleanQuery.rewrite could easily optimize some simple cases
> ------------------------------------------------------------
>
>                 Key: LUCENE-6889
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6889
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Priority: Minor
>             Fix For: 5.5, Trunk
>
>         Attachments: LUCENE-6889.patch, LUCENE-6889.patch
>
>
> Follow-up of SOLR-8251: APIs and user interfaces sometimes encourage to write 
> BooleanQuery instances that are not optimal, for instance a typical case that 
> happens often with Solr/Elasticsearch is to send a request that has a 
> MatchAllDocsQuery as a query and some filter, which could be executed more 
> efficiently by directly wrapping the filter into a ConstantScoreQuery.
> Here are some ideas of rewrite operations that BooleanQuery could perform:
>  - remove FILTER clauses when they are also a MUST clause
>  - rewrite queries of the form "+*:* #filter" to a ConstantScoreQuery(filter)
>  - rewrite to a MatchNoDocsQuery when a clause that is a MUST or FILTER 
> clause is also a MUST_NOT clause



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