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https://issues.apache.org/jira/browse/LUCENE-6959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15839694#comment-15839694
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Martijn van Groningen edited comment on LUCENE-6959 at 1/26/17 1:51 PM:
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I was wrong, `origChildQuery` can be removed as rewritten queries are used as
cache key in query cache.
was (Author: martijn.v.groningen):
I was wrong, it can `origChildQuery` can be removed as rewritten queries are
used as cache key in query cache.
> Remove ToParentBlockJoinCollector
> ---------------------------------
>
> Key: LUCENE-6959
> URL: https://issues.apache.org/jira/browse/LUCENE-6959
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Attachments: LUCENE_6959.patch, LUCENE_6959.patch, LUCENE-6959.patch
>
>
> This collector uses the getWeight() and getChildren() methods from the passed
> in Scorer, which are not always available (eg. disjunctions expose fake
> scorers) hence the need for a dedicated IndexSearcher
> (ToParentBlockJoinIndexSearcher). Given that this is the only collector in
> this case, I would like to remove it.
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