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From "Mamta A. Satoor (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-479) Passing the return of a RETURN NULL ON NULL INPUT function to another function call throws linkage error.
Date Fri, 17 Feb 2006 17:35:29 GMT
    [ http://issues.apache.org/jira/browse/DERBY-479?page=comments#action_12366820 ] 

Mamta A. Satoor commented on DERBY-479:
---------------------------------------

Thanks for reviewing the patch. As for the last comment about methodParms[parm] null check,
I did it because there are several such checks in MethodCallNode. Based on that, I assumed
that it is required for some edge case. (I have to admit that I did wonder why there was such
a check and probably should have asked the list). I have taken that null check out and rerunning
the tests right now to make sure nothing breaks. Will post a new patch once the tests have
completed successfully.

> Passing the return of  a RETURN NULL ON NULL INPUT function to another function call
throws linkage error.
> ----------------------------------------------------------------------------------------------------------
>
>          Key: DERBY-479
>          URL: http://issues.apache.org/jira/browse/DERBY-479
>      Project: Derby
>         Type: Bug
>   Components: SQL
>     Versions: 10.2.0.0
>     Reporter: Daniel John Debrunner
>     Assignee: Mamta A. Satoor
>  Attachments: Derby479LinkageErrorReturnNullIfNulldiff021306.txt, Derby479LinkageErrorReturnNullIfNulldiff021406.txt,
Derby479LinkageErrorReturnNullIfNulldiff021606.txt
>
> Error in ij (RN_RADIANS is a function declared as returns null on null input)
> ij> VALUES CAST( CALL_COS(RN_RADIANS(90.0)) AS DECIMAL(3,2));
> ERROR XBCM1: Java linkage error thrown during load of generated class org.apache.derby.exe.ace5214067x0105x5e41x7a46xffff855452e375.
> ERROR XJ001: Java exception: '(class: org/apache/derby/exe/ace5214067x0105x5e41x
> 7a46xffff855452e375, method: e0 signature: ()Ljava/lang/Object;) Expecting to find double
on stack: java.lang.VerifyError'.
> extract from derby.log
> 2005-07-28 16:23:43.836 GMT Thread[main,5,main] Wrote class org.apache.derby.exe
> .ace5214067x0105x5e41x7a46xffff855452e375 to file C:\_work\svn_pb\trunk\systest\
> out\functions\ace5214067x0105x5e41x7a46xffff855452e375.class. Please provide sup
> port with the file and the following exception information: java.lang.VerifyErro
> r: (class: org/apache/derby/exe/ace5214067x0105x5e41x7a46xffff855452e375, method
> : e0 signature: ()Ljava/lang/Object;) Expecting to find double on stack
> I will add a test case to lang/functions.sql commented with this bug number. Test cases
> that fail will be commented out.

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