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From "Martijn van Groningen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-2068) Search Grouping: collapse by string specialization
Date Fri, 29 Oct 2010 16:43:21 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12926340#action_12926340
] 

Martijn van Groningen commented on SOLR-2068:
---------------------------------------------

bq.  we would be better off using an OpenBitSet - or even better, a sparse set since the number
of elements
I get the OpenBitSet part, but what actual class do you mean with a sparse set? (Not a primitive
array I assume) 

> Search Grouping: collapse by string specialization
> --------------------------------------------------
>
>                 Key: SOLR-2068
>                 URL: https://issues.apache.org/jira/browse/SOLR-2068
>             Project: Solr
>          Issue Type: Sub-task
>            Reporter: Yonik Seeley
>         Attachments: SOLR-2068.patch
>
>
> Create specialized implementations for collapsing by an indexed string field.

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