[teiid-issues] [JBoss JIRA] (TEIID-4737) Incorrect work of left join statement

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13357889#comment-13357889 ] 

Steven Hawkins commented on TEIID-4737:
---------------------------------------

More than likely this is related to our upward projection of literal values, but in this case they are going too far up the plan.

> Incorrect work of left join statement
> -------------------------------------
>
>                 Key: TEIID-4737
>                 URL: https://issues.jboss.org/browse/TEIID-4737
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 9.0.3
>         Environment: teiid-9.0.3 on WildFly Full 9.0.2.Final (WildFly Core 1.0.2.Final)
>            Reporter: dalex dalex
>            Assignee: Steven Hawkins
>            Priority: Blocker
>         Attachments: test_emails_bug1.jpg, test_emails_pg.jpg
>
>
> the following query:
> {code:sql}
> SELECT a.email, b.email, lower(a.email), lower(b.email) FROM test_tables.test_emails as a left join views.test_view_emails as b on lower(a.email)=lower(b.email)
> {code}
> leads to the following results:
>  !test_emails_bug1.jpg|thumbnail! 
> though running the same query on PostgreSQL leads to the following results:
>  !test_emails_pg.jpg|thumbnail! 
> so this query mentioned above must work as on PostgreSQL putting null values for the b field table where conditions can't be performed.



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