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https://issues.apache.org/jira/browse/SOLR-8344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16162448#comment-16162448
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Cao Manh Dat commented on SOLR-8344:
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bq. IIRC, they are both stored and docValues=true currently, which was a 
conservative decision since we didn't know the impact of trying to use 
docValues only for stored fields. That extra space may not be worth it in the 
average case though.

Yeah, I think in case of single-value field, we should use docValues=true only.

> Decide default when requested fields are both column and row stored.
> --------------------------------------------------------------------
>
>                 Key: SOLR-8344
>                 URL: https://issues.apache.org/jira/browse/SOLR-8344
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ishan Chattopadhyaya
>         Attachments: SOLR-8344.patch
>
>
> This issue was discussed in the comments at SOLR-8220. Splitting it out to a 
> separate issue so that we can have a focused discussion on whether/how to do 
> this.
> If a given set of requested fields are all stored and have docValues (column 
> stored), we can retrieve the values from either place.  What should the 
> default be?



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