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https://issues.apache.org/jira/browse/LUCENE-4230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-4230:
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Attachment: LUCENE-4230.patch
New patch, making the default docsAndPositions return payloads and
offsets, and then caller can "optimize" if they don't need either or
both (I optimized MultiPhraseQuery/PhraseQuery/SloppyPhraseQuery).
Also, we no longer return null if the caller wants offsets but they
were not indexed (caller can consult FieldInfo if they need to know),
and instead return -1 (offsets) and null (payloads) if they weren't
indexed.
Separately we can optimize other places that don't need payloads.
> When pulling DocsAndPositionsEnum you should state whether you need payloads
> ----------------------------------------------------------------------------
>
> Key: LUCENE-4230
> URL: https://issues.apache.org/jira/browse/LUCENE-4230
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0
>
> Attachments: LUCENE-4230.patch, LUCENE-4230.patch, LUCENE-4230.patch
>
>
> Payloads are extra-costly today because when pulling a
> DocsAndPositionsEnum, the codec has no way to know if you need access
> to the payloads. Tracking the payloads, even if the app never
> retrieves them, is often costly...
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