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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-2717) Union-All reports new schema change when there is actually no
Date Fri, 10 Apr 2015 21:40:12 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Hsuan-Yi Chu resolved DRILL-2717.
--------------------------------------
    Resolution: Fixed

> Union-All reports new schema change when there is actually no
> -------------------------------------------------------------
>
>                 Key: DRILL-2717
>                 URL: https://issues.apache.org/jira/browse/DRILL-2717
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>            Reporter: Sean Hsuan-Yi Chu
>            Assignee: Sean Hsuan-Yi Chu
>         Attachments: DRILL-2717.1.patch
>
>
> {code}
> select * from
>             ((select columns[0] from dfs.`%s` t1
>             where t1.columns[0] = 66)
>             union all
>             (select columns[0] c2 from dfs.`%s` t2
>             where t2.columns[0] is not null
>             GROUP BY columns[0]
>             order by columns[0]))
>         group by EXPR$0
>         order by EXPR$0
> {code}
> The Union-All below the aggregator gives the wrong information so that aggregator wrongly
reported "schema change"



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