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https://issues.apache.org/jira/browse/LUCENE-4312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17180908#comment-17180908
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Michael Gibney commented on LUCENE-4312:
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This sounds great, [~mikemccand]; thanks for considering and helping advance
this issue generally.
bq. I do not think we can work out up front what the "bar" would be to promote
this approach to Lucene's core
That's fair. I feel confident moving forward with the knowledge that the
interest/intention to evaluate is there, and the suggested path of "We
encourage use ..." is encouragement enough, in turn, for me to proceed.
As you suggest, I'll open a new issue (linking to existing issues where
appropriate). It may take a bit of time for me to ramp back up on this. For
instance, I don't have an off-the-cuff answer to whether a change to
{{DefaultIndexChain}} would be necessary (at some point I thought it would be,
but I certainly won't (re)start with that assumption). And {{PostingsEnum}}
certainly doesn't require any changes, given that the branch in question
directly uses stock {{PostingsEnum}}.
Looking forward to working on this again ...
> Index format to store position length per position
> --------------------------------------------------
>
> Key: LUCENE-4312
> URL: https://issues.apache.org/jira/browse/LUCENE-4312
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/codecs
> Affects Versions: 6.0
> Reporter: Gang Luo
> Priority: Minor
> Labels: Suggestion
> Attachments: positionLength-postings.patch
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> Mike Mccandless said:TokenStreams are actually graphs.
> Indexer ignores PositionLengthAttribute.Need change the index format (and
> Codec APIs) to store an additional int position length per position.
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