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From "Senthilkumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5298) CTAS with 0 records from a SELECT query should create the table with metadata
Date Mon, 27 Feb 2017 08:52:45 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885375#comment-15885375
] 

Senthilkumar commented on DRILL-5298:
-------------------------------------

This issue exists in 1.9 still..

If you try the following statement

CREATE TABLE CTAS_TEST AS SELECT * FROM `hive.default`.`test` WHERE 1 = 0

and then try with SELECT * FROM CTAS_TEST, it will still fail with NO TABLE exception.



> CTAS with 0 records from a SELECT query should create the table with metadata
> -----------------------------------------------------------------------------
>
>                 Key: DRILL-5298
>                 URL: https://issues.apache.org/jira/browse/DRILL-5298
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Metadata, Query Planning & Optimization
>    Affects Versions: 1.9.0
>         Environment: MapR 5.2
>            Reporter: Senthilkumar
>             Fix For: 1.9.0
>
>
> Hello team,
> I create a table in Drill using CTAS as
> CREATE TABLE CTAS_TEST AS SELECT * FROM `hive.default`.`test` WHERE 1 = 0
> It runs successfully.
> But the table is not getting created as there are 0 records getting returned from the
SELECT query. 
> CTAS should still go ahead and create the table with the column metadata.
> When BI tools fire up multi-pass queries, with CTAS in the first query, the subsequent
queries fail because of a missing table.
> In databases like SQL Server, Postgres, CTAS will create the table, even if the SELECT
doesnt return any rows.



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