[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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