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From "Cao Manh Dat (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8344) Decide default when requested fields are both column and row stored.
Date Fri, 01 Sep 2017 12:42:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16150447#comment-16150447
] 

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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