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https://issues.apache.org/jira/browse/LUCENE-8922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-8922.
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Resolution: Fixed
Fix Version/s: 8.3
> Speed up retrieval of top hits of DisjunctionMaxQuery
> -----------------------------------------------------
>
> Key: LUCENE-8922
> URL: https://issues.apache.org/jira/browse/LUCENE-8922
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: 8.3
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> There a simple optimization that we are not doing in the case that
> tieBreakMultiplier is 0: we could propagate the min competitive score to sub
> clauses as-is.
> Even in the general case, we currently compute the block boundary of the
> DisjunctionMaxQuery as the minimum of the block boundaries of its sub
> clauses. This generates blocks that have very low score upper bounds but
> unfortunately they are also very small, which means that we might sometimes
> not make progress quickly enough.
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