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From "Abhishek Girish (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2301) Query fails when multiple table aliases are provided for CTEs
Date Tue, 28 Apr 2015 20:21:06 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14517954#comment-14517954
] 

Abhishek Girish commented on DRILL-2301:
----------------------------------------

Observed to be duplicate. Closing. 


> Query fails when multiple table aliases are provided for CTEs
> -------------------------------------------------------------
>
>                 Key: DRILL-2301
>                 URL: https://issues.apache.org/jira/browse/DRILL-2301
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 0.8.0
>            Reporter: Abhishek Girish
>            Assignee: Jinfeng Ni
>             Fix For: 1.0.0
>
>         Attachments: drillbit.log
>
>
> When a query contains a WITH clause which defines Common Table Expressions (CTEs), a
second alias for the same the temporary table cannot be provided. 
> *The following query fails to validate:*
> WITH C AS 
> ( 
>          SELECT   c_customer_id          cid
>          FROM     customer
>          GROUP BY c_customer_id ) 
> SELECT   c2.cid 
> FROM     C c1, 
>          C c2 
> WHERE    c2.cid = c1.cid 
> ORDER BY c2.cid limit 10;
> Query failed: SqlValidatorException: Table 'c2' not found
> The above query validates and executes successfully on Postgres. 
> When the WITH clause is removed, the query succeeds.
> *The following query executes fine:*
> SELECT   c2.c_customer_id 
> FROM     customer c1, 
>          customer c2 
> WHERE    c2.c_customer_id = c1.c_customer_id 
> ORDER BY c2.c_customer_id limit 10;
> Logs attached. 



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