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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-38) RangeQuery without lower term and inclusive=false skips blank fields
Date Thu, 13 Nov 2008 04:33:44 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-38?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12647185#action_12647185
] 

Otis Gospodnetic commented on LUCENE-38:
----------------------------------------

This thing is 6+ years old and I don't recall this being mentioned on the list in the last
half a decade.  I'll leave you the Won't Fix pleasure, Mark.


> RangeQuery without lower term and inclusive=false skips blank fields
> --------------------------------------------------------------------
>
>                 Key: LUCENE-38
>                 URL: https://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
>            Assignee: Lucene Developers
>            Priority: Minor
>         Attachments: TestRangeQuery.patch
>
>
> This was reported by "James Ricci" <james@riccinursery.com> at:
> http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-user@jakarta.apache.org&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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