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https://issues.apache.org/jira/browse/SOLR-4586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13603725#comment-13603725
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Shawn Heisey commented on SOLR-4586:
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Mikhail, I was just going by what a committer told me in IRC. If that's wrong,
then the patch shouldn't be applied and this issue can be closed. I tried the
patched Solr out after removed maxBooleanClauses from my config, and a
1500-clause query fails, saying too many clauses. Dropping that to 1024 allows
the query to complete. There were no results found, but it parsed and said
numFound=0.
If the information about Lucene no longer having such a limitation is correct,
perhaps Solr's code needs updating?
> Remove maxBooleanClauses from Solr
> ----------------------------------
>
> Key: SOLR-4586
> URL: https://issues.apache.org/jira/browse/SOLR-4586
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 4.2
> Reporter: Shawn Heisey
> Attachments: SOLR-4586.patch
>
>
> In the #solr IRC channel, I mentioned the maxBooleanClauses limitation to
> someone asking a question about queries. Mark Miller told me that
> maxBooleanClauses no longer applies, that the limitation was removed from
> Lucene sometime in the 3.x series. The config still shows up in the example
> even in the just-released 4.2.
> Checking through the source code, I found that the config option is parsed
> and the value stored in objects, but does not actually seem to be used by
> anything. I removed every trace of it that I could find, and all tests still
> pass.
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