Varun Thacker created SOLR-10816:
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Summary: 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
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Varun Thacker
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:
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https://issues.apache.org/jira/browse/SOLR-5478?focusedCommentId=16036951&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16036951
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http://mail-archives.apache.org/mod_mbox/lucene-dev/201706.mbox/%3C008201d2ddf9%2429435740%247bca05c0%24%40thetaphi.de%3E
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