[jira] [Commented] (HIVE-19993) Using a table alias which also appears as a column name is not possible

["Zoltan Haindrich (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-19993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599622#comment-16599622 ] 

Zoltan Haindrich commented on HIVE-19993:
-----------------------------------------

+1

> Using a table alias which also appears as a column name is not possible
> -----------------------------------------------------------------------
>
>                 Key: HIVE-19993
>                 URL: https://issues.apache.org/jira/browse/HIVE-19993
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zoltan Haindrich
>            Assignee: Jaume M
>            Priority: Major
>         Attachments: HIVE-19993.1.patch, HIVE-19993.2.patch, HIVE-19993.3.patch
>
>
> {code}
> drop table if exists tableA;
> drop table if exists tableB;
> create table tableA (a integer,z integer);
> create table tableB (a integer,b integer,z integer);
> select a.z, b.b 
> from tableB as b JOIN 
> tableA as a
> on a.a=b.b;
> {code}
> {code}
> Error: Error while compiling statement: FAILED: SemanticException Column a Found in more than One Tables/Subqueries (state=42000,code=40000)
> {code}



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