[ http://issues.apache.org/jira/browse/LUCENE-38?page=all ]
Dejan Nenov updated LUCENE-38:
------------------------------
Attachment: TestRangeQuery.patch
Added additional tests, using "null" as the lower term in the range query. The
tests are commented to indicate how they should be modified to behave once this
LUCENE-38 is fixed.
> RangeQuery without lower term and inclusive=false skips blank fields
> --------------------------------------------------------------------
>
> Key: LUCENE-38
> URL: http://issues.apache.org/jira/browse/LUCENE-38
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: unspecified
> Environment: Operating System: other
> Platform: Other
> Reporter: Otis Gospodnetic
> Assigned To: Lucene Developers
> Attachments: TestRangeQuery.patch
>
>
> This was reported by "James Ricci" <[EMAIL PROTECTED]> at:
> http://nagoya.apache.org/eyebrowse/[EMAIL PROTECTED]&msgNo=1835
> When you create a ranged query and omit the lower term, my expectation
> would be that I would find everything less than the upper term. Now if I pass
> false for the inclusive term, then I would expect that I would find all
> terms less than the upper term excluding the upper term itself.
> What is happening in the case of lower_term=null, upper_term=x,
> inclusive=false is that empty strings are being excluded because
> inclusive is set false, and the implementation of RangedQuery creates a
> default
> lower term of Term(fieldName, ""). Since it's not inclusive, it excludes "".
> This isn't what I intended, and I don't think it's what most people would
> imagine RangedQuery would do in the case I've mentioned.
> I equate lower=null, upper=x, inclusive=false to Field < x. lower=null,
> upper=x, inclusive=true would be Field <= x. In both cases, the only
> difference should be whether or not Field = x is true for the query.
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