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https://issues.apache.org/jira/browse/SOLR-8344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16150447#comment-16150447
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Cao Manh Dat commented on SOLR-8344:
------------------------------------

I think instead of find out the default solution. Why don't we do a quick 
estimation like this 
{code}
dvEstimate = estimateReadingTimeForDocValuesAsDefault(List<String> fields, int 
numDocs);
storedEstimate = estimateReadingTimeForStoredAsDefault(List<String> fields, int 
numDocs);
{code}
By comparing {{dvEstimate}} and {{storedEstimate}} we can choose to use dv or 
stored field here.


> 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
>
> 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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