[teiid-issues] [JBoss JIRA] (TEIID-5987) Plan with join removal returns unexpected values

Steven Hawkins (Jira) issues at jboss.org
Tue Jul 14 13:42:00 EDT 2020


     [ https://issues.redhat.com/browse/TEIID-5987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-5987:
----------------------------------
    Description: 
In testing TEIIDSB-213 I can see that a query such as:

select a1.id from Account a1 inner join account a2 on a1.parentid = a2.id

actually returns results, but no are expected.

Whereas 

select a1.id from Account a1 where a1.parentid is not null

returns no results as expected

  was:
I'm not sure about the full scope of this issue.  In testing TEIIDSB-213 I can see that a query such as:

select a1.id from Account a1 inner join account a2 on a1.parentid = a2.id

which results in the source query with the implicit null check:

SELECT Id FROM Account WHERE ParentId != NULL

actually returns results, but no are expected.

The explicit non-join query query

select a1.id from Account a1 where a1.parentid is not null

result in:

SELECT Id FROM Account WHERE ParentId != NULL

but returns no results

So there is something in the join handling that is not working as expected.



        Summary: Plan with join removal returns unexpected values  (was: salesforce self join involving implicit null check on parentid field not working)


> Plan with join removal returns unexpected values
> ------------------------------------------------
>
>                 Key: TEIID-5987
>                 URL: https://issues.redhat.com/browse/TEIID-5987
>             Project: Teiid
>          Issue Type: Bug
>          Components: Salesforce Connector
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>            Priority: Critical
>             Fix For: 15.0, 13.1.2, 14.0.1
>
>   Original Estimate: 4 hours
>  Remaining Estimate: 4 hours
>
> In testing TEIIDSB-213 I can see that a query such as:
> select a1.id from Account a1 inner join account a2 on a1.parentid = a2.id
> actually returns results, but no are expected.
> Whereas 
> select a1.id from Account a1 where a1.parentid is not null
> returns no results as expected



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