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https://issues.apache.org/jira/browse/LUCENE-2514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12882252#action_12882252
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Michael McCandless commented on LUCENE-2514:
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Ahh sorry I do indeed seek to an unpaired high surrogate -- easy to fix (pair
it up w/ minimum low surrogate).
But, there's another problem, which is that the pre-flex codec uses
Term.compareTo, and it needs that to be based on UTF16. We can just fix the
preflex codec to use its own (UTF8inUTF16order) comparator. I *think* once we
fix those two the test should pass again (crossing fingers...).
> Change Term to use bytes
> ------------------------
>
> Key: LUCENE-2514
> URL: https://issues.apache.org/jira/browse/LUCENE-2514
> Project: Lucene - Java
> Issue Type: Task
> Components: Search
> Affects Versions: 4.0
> Reporter: Robert Muir
> Attachments: LUCENE-2514.patch, LUCENE-2514.patch
>
>
> in LUCENE-2426, the sort order was changed to codepoint order.
> unfortunately, Term is still using string internally, and more importantly
> its compareTo() uses the wrong order [utf-16].
> So MultiTermQuery, etc (especially its priority queues) are currently wrong.
> By changing Term to use bytes, we can also support terms encoded as bytes
> such as numerics, instead of using
> strange string encodings.
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