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https://issues.apache.org/jira/browse/DRILL-3508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinfeng Ni updated DRILL-3508:
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Assignee: Sean Hsuan-Yi Chu (was: Jinfeng Ni)
> Selecting from an empty directory in a union failes
> ---------------------------------------------------
>
> Key: DRILL-3508
> URL: https://issues.apache.org/jira/browse/DRILL-3508
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Affects Versions: 1.1.0
> Reporter: Stefán Baxter
> Assignee: Sean Hsuan-Yi Chu
> Fix For: 1.2.0
>
>
> I union select where the right hand side points to an empty directory files
> with the following error code:
> Error: PARSE ERROR: Index: 0, Size: 0
> [Error Id: fed7527a-9d7a-4980-80f5-ff3f0b92d49b on localhost:31010]
> (state=,code=0)
> We use this to merge tenant based information and sometimes there are no
> files on the right hand side of the union. It would be ideal that that
> scenario would return an empty list rather than an error.
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