[ https://issues.apache.org/jira/browse/LUCENE-2190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Uwe Schindler updated LUCENE-2190:
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Attachment: LUCENE-2190-2-branch29.patch
Here the patch for 2.9
> CustomScoreQuery (function query) is broken (due to per-segment searching)
> --------------------------------------------------------------------------
>
> Key: LUCENE-2190
> URL: https://issues.apache.org/jira/browse/LUCENE-2190
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: 2.9, 2.9.1, 3.0, 3.0.1, 3.1
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 2.9.2, 3.0.1, 3.1
>
> Attachments: LUCENE-2190-2-branch29.patch, LUCENE-2190-2-branch30.patch, LUCENE-2190-2-branch30.patch,
LUCENE-2190-2-trunk.patch, LUCENE-2190-2-trunk.patch, LUCENE-2190-2.patch, LUCENE-2190-2.patch,
LUCENE-2190.patch
>
>
> Spinoff from here:
> http://lucene.markmail.org/message/psw2m3adzibaixbq
> With the cutover to per-segment searching, CustomScoreQuery is not really usable anymore,
because the per-doc custom scoring method (customScore) receives a per-segment docID, yet
there is no way to figure out which segment you are currently searching.
> I think to fix this we must also notify the subclass whenever a new segment is switched
to. I think if we copy Collector.setNextReader, that would be sufficient. It would by default
do nothing in CustomScoreQuery, but a subclass could override.
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