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https://issues.apache.org/jira/browse/SOLR-10816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved SOLR-10816.
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Fix Version/s: 9.7
Resolution: Duplicate
> Change uniqueKey to use docValues and not stored field
> ------------------------------------------------------
>
> Key: SOLR-10816
> URL: https://issues.apache.org/jira/browse/SOLR-10816
> Project: Solr
> Issue Type: Improvement
> Reporter: Varun Thacker
> Priority: Major
> Fix For: 9.7
>
>
> This issue is about the performance improvements you can get by avoiding
> decompression during the first phase of a distributed search where only id
> and score is needed.
> The improvements will be noticed for users if the docs are large or have lots
> of fields in them.
> For users who don't have this scenario it shouldn't slow things done by any
> noticeable amounts?
> We should default the unique key field to use docValuues='true' and
> stored='false'
> Links to the discussion that lead to this idea:
> -
> https://issues.apache.org/jira/browse/SOLR-5478?focusedCommentId=16036951&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16036951
> -
> http://mail-archives.apache.org/mod_mbox/lucene-dev/201706.mbox/%3C008201d2ddf9%2429435740%247bca05c0%24%40thetaphi.de%3E
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