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https://issues.apache.org/jira/browse/SOLR-14073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17018150#comment-17018150
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Joel Bernstein edited comment on SOLR-14073 at 1/17/20 4:03 PM:
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The initial patch seems to work but it's quite hard to reason about.
I'm going to try a different approach which is easier to reason about which is
to pre-populate the contexts array rather then populating it as the segments
are visited. This should eliminate the look-ahead NPE as well.
was (Author: joel.bernstein):
The initial patch seems to work but it's quite hard to reason about.
I'm going to try a different approach which is easier to reason about which is
to prepopulate the contexts array rather then populating it as the segments are
visited. This should eliminate the look-ahead NPE as well.
> Fix segment look ahead NPE in CollapsingQParserPlugin
> -----------------------------------------------------
>
> Key: SOLR-14073
> URL: https://issues.apache.org/jira/browse/SOLR-14073
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Attachments: 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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