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https://issues.apache.org/jira/browse/TAJO-1372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14370865#comment-14370865
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Jihoon Son commented on TAJO-1372:
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[~azuryy] sorry, I couldn't start yet.
Nowadays, I'm working on improving join query processing.
After that, I will be able to investigate what degrades the performance.
Maybe, it is the problem of suboptimal query plan.
> Improve the performance of distinct queries
> -------------------------------------------
>
> Key: TAJO-1372
> URL: https://issues.apache.org/jira/browse/TAJO-1372
> Project: Tajo
> Issue Type: Improvement
> Reporter: Jihoon Son
>
> See the title.
> This problem is discussed at
> http://mail-archives.apache.org/mod_mbox/tajo-dev/201503.mbox/%3CCALr1C9p4PhO4PpZ0qGo%2BC6VA63YbYWabfxfAM2OQ3bD%3Dzh6MLw%40mail.gmail.com%3E.
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