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From "Satheesh Bandaram (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-7) Bug in NULLIF Function
Date Mon, 27 Dec 2004 21:57:13 GMT
     [ http://nagoya.apache.org/jira/browse/DERBY-7?page=comments#action_57076 ]
     
Satheesh Bandaram commented on DERBY-7:
---------------------------------------

There was a related bug that Derby tried to address before going OPEN SOURCE. 

ij> values (case when 1.0=1.0 then null else 10 end);
ERROR 42X89: Types 'CHAR' and 'INTEGER' are not type compatible. (Neither type i
s assignable to the other type.)

The above statement should have returned NULL instead. Don't remember who worked on that bug,
but I might have mistaken this NULLIF issue with that one. I think issues here may be slightly
different...

> Bug in NULLIF Function
> ----------------------
>
>          Key: DERBY-7
>          URL: http://nagoya.apache.org/jira/browse/DERBY-7
>      Project: Derby
>         Type: Bug
>   Components: SQL
>     Versions: 10.0.2.0
>     Reporter: Tulika Agrawal
>     Priority: Minor

>
> Reporting for Christian d'Heureuse, filed on derby-dev list.
> The NULLIF built-in function of Cloudscape 10.0.1.0 beta seems to accept
> only string values.
> Examples:
>  values nullif('a','b');
>  --> OK
>  values nullif(1,2);
>  --> Error message: "ERROR 42X89: Types 'CHAR' and
>      'INTEGER' are not type compatible. (Neither type
>      is assignable to the other type.)"

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