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From "Nicolas Helleringer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2184) CartesianPolyFilterBuilder doesn't properly account for which tiers actually exist in the index
Date Tue, 16 Nov 2010 14:22:13 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932474#action_12932474
] 

Nicolas Helleringer commented on LUCENE-2184:
---------------------------------------------

The comment is here since the early version of local lucene by Patrick O'Leary

It is still meaningfull as the spatial contrib is still under work and could break current
indexes (if we change at last the Sinusoidal Projector implemtation)

> CartesianPolyFilterBuilder doesn't properly account for which tiers actually exist in
the index 
> ------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2184
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2184
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/spatial
>    Affects Versions: 2.9, 2.9.1, 3.0
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>             Fix For: 2.9.4, 3.0.3, 3.1, 4.0
>
>         Attachments: LUCENE-2184.2.patch, LUCENE-2184.patch
>
>
> In the CartesianShapeFilterBuilder, there is logic that determines the "best fit" tier
to create the Filter against.  However, it does not account for which fields actually exist
in the index when doing so.  For instance, if you index tiers 1 through 10, but then choose
a very small radius to restrict the space to, it will likely choose a tier like 15 or 16,
which of course does not exist.

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