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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-998) BooleanQuery.setMaxClauseCount(int) is static
Date Wed, 11 Mar 2009 11:07:50 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680838#action_12680838
] 

Mark Miller commented on LUCENE-998:
------------------------------------

Ive seen and seen reported, that the constant score version scales *much* better. Which makes
me think the enumeration is not the main problem - on a pretty large index, I've seen the
difference as fairly dramatic - say the boolean version was in the 10-20 seconds range, the
constant score version a couple seconds type of thing.

I do think constant score should be the default eventually.

Longer term, I would hope you never have to limit the number of terms it can hit - perhaps
just use the timeout collector? I have no real argument against this patch, just a string
I am not interested in tugging myself.

> BooleanQuery.setMaxClauseCount(int) is static
> ---------------------------------------------
>
>                 Key: LUCENE-998
>                 URL: https://issues.apache.org/jira/browse/LUCENE-998
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Search
>    Affects Versions: 2.1
>            Reporter: Tim Lebedkov
>         Attachments: lucene-998.patch
>
>
> BooleanQuery.setMaxClauseCount(int) is static. It does not allow searching in multiple
indices from different threads using different settings. This setting should be probably moved
in to the IndexSearcher.

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