[teiid-issues] [JBoss JIRA] (TEIID-3573) Infinispan-dsl-cache translator: Operator <> incorrectly handles NULL values
Van Halbert (JIRA)
issues at jboss.org
Mon Jul 27 21:04:02 EDT 2015
[ https://issues.jboss.org/browse/TEIID-3573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093261#comment-13093261 ]
Van Halbert edited comment on TEIID-3573 at 7/27/15 9:03 PM:
-------------------------------------------------------------
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
Query (adding Is Null): select intKey,intNum from smalla where intNum <> 23 and intNum is Null
* no criteria pushed down, and returned no rows
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
was (Author: van.halbert):
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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