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From "Martijn van Groningen (JIRA)" <>
Subject [jira] Commented: (SOLR-1682) Implement CollapseComponent
Date Tue, 17 Aug 2010 18:11:21 GMT


Martijn van Groningen commented on SOLR-1682:

bq. 2) the popularity of a group is the max among all docs in that group
If done as different sort in the second phase collector. This means then that the groups themselves
are sorted on popularity desc (most popular group end up as first result), but the documents
inside the group on price asc. This can be confusing since the document responsible for getting
the group in the result set (top 10) might not be put in inside the group during the second
phase. I'm not sure if end user expect / want this.

bq. had planned on group.limit to be the number of groups returned - so I just need to get
used to the new way of thinking about these
Can't we use rows parameter for that?

bq. It looks fine in XML, but in JSON the representation of a doclist as "docs" it
Maybe groupDocs fits as good description

> Implement CollapseComponent
> ---------------------------
>                 Key: SOLR-1682
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>          Components: search
>            Reporter: Martijn van Groningen
>            Assignee: Shalin Shekhar Mangar
>             Fix For: Next
>         Attachments: field-collapsing.patch, SOLR-1682.patch, SOLR-1682.patch, SOLR-1682.patch,
SOLR-1682.patch, SOLR-1682_prototype.patch, SOLR-1682_prototype.patch, SOLR-1682_prototype.patch,
> Child issue of SOLR-236. This issue is dedicated to field collapsing in general and all
its code (CollapseComponent, DocumentCollapsers and CollapseCollectors). The main goal is
the finalize the request parameters and response format.

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