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https://issues.apache.org/jira/browse/TAJO-228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi resolved TAJO-228.
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Resolution: Duplicate
> Can't use group by column alias
> -------------------------------
>
> Key: TAJO-228
> URL: https://issues.apache.org/jira/browse/TAJO-228
> Project: Tajo
> Issue Type: Bug
> Reporter: kim hyoung jun
> Fix For: 0.2-incubating
>
>
> I ran the bellow query which uses column alias and group by.
> {code}
> select b.n_name as nation, count(*) as cnt
> from customer_100 a, nation_100 b
> where a.c_nationkey = b.n_nationkey
> group by b.n_name
> order by cnt desc
> limit 7
> {code}
> This query doesn't end. I found attached error message in tajo worker's log.
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