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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-2809) Expressions with a parameter can be assigned the incorrect type
Date Tue, 12 Jun 2007 22:27:25 GMT
Expressions with a parameter can be assigned the incorrect type
---------------------------------------------------------------

                 Key: DERBY-2809
                 URL: https://issues.apache.org/jira/browse/DERBY-2809
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.3.0.0
            Reporter: Daniel John Debrunner
            Assignee: Daniel John Debrunner


Some unary operator nodes with a parameter can be assigned incorrect types during bind time,
for example SQRT(?) can become a BOOLEAN expression.

This statement compiles successfully when it should be rejected as SQRT() is not a boolean
function.

ij> values case when sqrt(?) then 3 else 4 end;
ERROR 07000: At least one parameter to the current statement is uninitialized.

When a constant is used the correct binding happens.

ij> values case when sqrt(9.0) then 3 else 4 end;
ERROR 42X88: A conditional has a non-Boolean operand. The operand of a conditional must evaluate
to TRUE, FALSE, or UNKNOWN.

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