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https://issues.apache.org/jira/browse/LUCENE-3338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071615#comment-13071615
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Uwe Schindler commented on LUCENE-3338:
---------------------------------------

OK, now I understand:

bq. I changed the patch to make the junit fail and you see the problem with [x 
TO x} matching nothing.

It seems that somehow the formatting of your original comment in JIRA was 
broken, I misunderstood and thought you mean half open ranges like: [x TO *] 
behaving different like [x TO *}, which is not the case (i am glad).

This of course returns no results, because the upper bound explicitely excludes 
the lower bound, so its in fact a query where upper<lower bound, so returns 
nothing, this is not bug or limitation, its in my opinion correct:

assertRangeQuery(NumberType.NEGATIVE, NumberType.NEGATIVE, false, true, 1);

I would change that line to assert 0 results like in the next test with (true, 
false).

> Flexible query parser does not support open ranges and range queries with 
> mixed inclusive and exclusive ranges
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3338
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3338
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: modules/queryparser
>    Affects Versions: 3.3
>            Reporter: Vinicius Barros
>            Assignee: Uwe Schindler
>             Fix For: 4.0
>
>         Attachments: week9-merged-nosurround.patch, 
> week9-merged-nosurround_with_failing_junit.patch, week9-merged.patch, 
> week9.patch
>
>
> Flexible query parser does not support open ranges and range queries with 
> mixed inclusive and exclusive ranges.
> These two problems were found while developing LUCENE-1768.

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