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https://issues.apache.org/jira/browse/SOLR-14073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058449#comment-17058449
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Munendra S N commented on SOLR-14073:
-------------------------------------
Since multiple Collapse are supported should we update the documentation
saying with multiple collapse and expand=true, one of the collapse filter
would be chosen(I think it would be the first one).
Also, expand.field is not documented. Should we add it documentation? (This is
separate topic, just wanted share here)
> Fix segment look ahead NPE in CollapsingQParserPlugin
> -----------------------------------------------------
>
> Key: SOLR-14073
> URL: https://issues.apache.org/jira/browse/SOLR-14073
> Project: Solr
> Issue Type: Bug
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: 8.5
>
> Attachments: SOLR-14073.patch, SOLR-14073.patch, SOLR-14073.patch
>
>
> The CollapsingQParserPlugin has a bug that if every segment is not visited
> during the collect it throws an NPE. This causes the CollapsingQParserPlugin
> to not work when used with any feature that short circuits the segments
> during the collect. This includes using the CollapsingQParserPlugin twice in
> the same query and the time limiting collector.
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