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https://issues.apache.org/jira/browse/SOLR-13970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16985997#comment-16985997
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Munendra S N commented on SOLR-13970:
-------------------------------------
[^SOLR-13970.patch]
This includes
* explicit error when either collapse/expand is specified with Grouping
* SOLR-5230 added a test to verify {{DelegatingCollector#finish()}} call.
Since, collapse can't be used with Grouping. I have modified and moved the test
{{TestGroupingSearch}}. Here, test use significantTerms which internally uses
{{DelegatingCollector}}
* Ref-guide update
[~erickerickson] could you please review ?
> Collapse/Expand and Grouping are not designed to work together, we should
> fail requests that specify both gracefully
> --------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-13970
> URL: https://issues.apache.org/jira/browse/SOLR-13970
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Erick Erickson
> Priority: Major
> Attachments: SOLR-13970.patch
>
>
> Expand/Collapse was conceived as orthogonal to grouping, and there are odd
> interactions when both are specified. If these two options are specified, we
> should reject the query with an informative message.
> Shorter term, making this explicit in the documents would be helpful.
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