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https://issues.apache.org/jira/browse/LUCENE-730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12489229
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Paul Elschot commented on LUCENE-730:
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Further to Yonik's answer, I have not done any tests with prohibited scorers
comparing BooleanScorer and BooleanScorer2.
It is quite possible that using skipTo() on any prohibited scorer (via
BooleanScorer2) is generally faster than using BooleanScorer. Prohibited
clauses in queries are quite seldom, so it is going to be difficult to find out
whether a smaller value than 32 would be generally optimal.
> Restore top level disjunction performance
> -----------------------------------------
>
> Key: LUCENE-730
> URL: https://issues.apache.org/jira/browse/LUCENE-730
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Paul Elschot
> Priority: Minor
> Attachments: TopLevelDisjunction20061127.patch
>
>
> This patch restores the performance of top level disjunctions.
> The introduction of BooleanScorer2 had impacted this as reported
> on java-user on 21 Nov 2006 by Stanislav Jordanov.
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