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https://issues.apache.org/jira/browse/LUCENE-2761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932086#action_12932086
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Michael McCandless commented on LUCENE-2761:
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This looks great Robert! I think it makes sense to manually specialize this.
> specialize payload processing from of DocsAndPositionsEnum
> ----------------------------------------------------------
>
> Key: LUCENE-2761
> URL: https://issues.apache.org/jira/browse/LUCENE-2761
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Robert Muir
> Fix For: 4.0
>
> Attachments: LUCENE-2761.patch
>
>
> In LUCENE-2760 i started working to try to improve the speed of a few
> spanqueries.
> In general the trick there is to avoid processing positions if you dont have
> to.
> But, we can improve queries that read lots of positions further by cleaning
> up SegmentDocsAndPositionsEnum,
> in nextPosition() this has no less than 3 payloads-related checks.
> however, a large majority of users/fields have no payloads at all.
> I think we should specialize this case into a separate implementation and
> speed up the common case.
> edit: dyslexia with the jira issue number.
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