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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2785) TopFieldCollector throws AIOOBE if numHits is 0
Date Tue, 30 Nov 2010 09:39:10 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965172#action_12965172
] 

Uwe Schindler commented on LUCENE-2785:
---------------------------------------

+1, I needed the same. Its often a use case to simply get number of results. And a PQ with
one entry and all the logic does not make sense here. We should just count hits.

> TopFieldCollector throws AIOOBE if numHits is 0
> -----------------------------------------------
>
>                 Key: LUCENE-2785
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2785
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Search
>            Reporter: Michael McCandless
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>
> See solr-user thread "ArrayIndexOutOfBoundsException for query with rows=0 and sort param".
> I think we should just create a null collector (only tallies up totalHits) if numHits
is 0?

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