[teiid-issues] [JBoss JIRA] Created: (TEIID-748) QueryRewriter null handling

Tue Aug 4 16:47:29 EDT 2009

QueryRewriter null handling
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                 Key: TEIID-748
                 URL: https://jira.jboss.org/jira/browse/TEIID-748
             Project: Teiid
          Issue Type: Bug
          Components: Query Engine
    Affects Versions: 6.0.0
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
            Priority: Minor
             Fix For: 6.2.0

The rewriter changes several criteria fragments into true/false criteria ignoring the affect of nulls.  i.e. pm1.g1.e1 like '%' is not same as 1 = 1 since null e1 values should not be allowed to pass.

This is not a regression, but has been a problem since the switch to three valued logic.

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