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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-2809) Expressions with a parameter can be assigned the incorrect type
Date Thu, 05 Jul 2007 22:41:05 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Daniel John Debrunner closed DERBY-2809.

    Resolution: Fixed

Fixed, changes merged into 10.3, tests added.

> 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:
>            Reporter: Daniel John Debrunner
>            Assignee: Daniel John Debrunner
>             Fix For:,
> 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
> 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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