[teiid-issues] [JBoss JIRA] (TEIID-3573) Infinispan-dsl-cache translator: Operator <> incorrectly handles NULL values

[Van Halbert (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-3573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093261#comment-13093261 ] 

Van Halbert commented on TEIID-3573:
------------------------------------

Kept IsNull = false, changed supportNot = FALSE


Query: select intKey,intNum from smallA where intNum <> 23

*  teiid doesn't push down criteria and doesn't include the <null> value rows

Didn't need to test this query because of results above: (adding Is Null): select intKey,intNum from smalla where intNum <> 23 and intNum is Null

Query:  select intKey,intNum, stringNum, floatnum from smalla where intNum Is Null

*  no criteria pushed down, and returns on the 4 rows that have <null> value

Query:  select intKey,intNum, stringNum, floatnum from smalla where intNum Is Not Null

*  returned the correct results


> Infinispan-dsl-cache translator: Operator <> incorrectly handles NULL values
> ----------------------------------------------------------------------------
>
>                 Key: TEIID-3573
>                 URL: https://issues.jboss.org/browse/TEIID-3573
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.7.1
>            Reporter: Filip Elias
>            Assignee: Van Halbert
>
> Operator '<>' returns true for NULL <> 1
> Example:
> {code}
> select intKey,intNum from smallA where intNum<>1
> {code} 
> It returns also rows which have NULL in column intNum
> I believe that NULL <> 1 is not true in SQL.



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