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https://issues.apache.org/jira/browse/SOLR-8831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191504#comment-15191504
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Jack Krupansky commented on SOLR-8831:
--------------------------------------
Now that docValues is supported for _version_, the question arises as to which
is preferred (faster, less memory), stored or docValues. IOW, which should be
the default. I presume it should be docValues, but I have no real clue.
Also, the doc for Atomic Update has this example as a Power Tip, that has BOTH
stored and docValues set:
{code}
<field name="_version_" type="long" indexed="false" stored="true"
required="true" docValues="true"/>
{code}
See:
https://cwiki.apache.org/confluence/display/solr/Updating+Parts+of+Documents
Should that be changed to stored="false"? Or, is there actually some aditional
hidden benefit to store="true" AND docValues="true"?
> allow _version_ field to be retrievable via docValues
> -----------------------------------------------------
>
> Key: SOLR-8831
> URL: https://issues.apache.org/jira/browse/SOLR-8831
> Project: Solr
> Issue Type: Improvement
> Reporter: Yonik Seeley
> Fix For: 6.0
>
> Attachments: SOLR-8831.patch
>
>
> Right now, one is prohibited from having an unstored _version_ field, even if
> docValues are enabled.
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