[teiid-issues] [JBoss JIRA] (TEIID-5094) Is DISTINCT FROM evaluation with two null values
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https://issues.jboss.org/browse/TEIID-5094?page=com.atlassian.jira.plugin...
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Jan Stastny commented on TEIID-5094:
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[~shawkins] What is the expectation for update count here? Should it reflect only number
of rows being changed, effectively meaning only those where
{code:sql}
IF ("new" IS DISTINCT FROM "old")
{code}
holds?
Because currently the update count counts also rows, that haven't changed.
Is DISTINCT FROM evaluation with two null values
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Key: TEIID-5094
URL: https://issues.jboss.org/browse/TEIID-5094
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 8.12
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Priority: Critical
Fix For: 10.0, 8.12.x-6.4, 9.3.4, 9.2.7
'row(null) is distinct from row(null)" evaluates to true when false is expected.
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