Awesome! Its not a bad solution at all.

Cheers
Avlesh

On Wed, Oct 28, 2009 at 11:33 PM, Jonathan Hendler <
jonathan.hend...@gmail.com> wrote:

> Thanks - that solution still causes an error.
>
> But it helped me think of an SQL solution like so :
> CONVERT ( '${table1.somethin_like_a_foreign_key}' , UNSIGNED INTEGER )
>
> Convert the integer or NULL to a string, then back again. (ugly but it
> works)
>
>
>
>
>
> On Oct 28, 2009, at 1:48 PM, Avlesh Singh wrote:
>
>  Assuming this to be MySQL, will this work -
>> SELECT *  FROM table2 WHERE id =
>> IF(ISNULL(${table1.somethin_like_a_foreign_key}), 0,
>> ${table1.somethin_like_a_foreign_key});
>>
>> Cheers
>> Avlesh
>>
>> On Wed, Oct 28, 2009 at 11:12 PM, Jonathan Hendler <
>> jonathan.hend...@gmail.com> wrote:
>>
>>  No - the SQL will fail to validate because at runtime it will look like
>>>
>>>
>>> SELECT *  FROM table2 WHERE
>>>
>>>> IS NOT NULL table1.somethin_like_a_foreign_key
>>>> AND table1.somethin_like_a_foreign_key > 0
>>>> AND id =
>>>>
>>>>
>>>>
>>> Note the "id = "
>>>
>>>
>>> On Oct 28, 2009, at 1:38 PM, Avlesh Singh wrote:
>>>
>>> Shouldn't this work too?
>>>
>>>> SELECT *  FROM table2 WHERE IS NOT NULL
>>>> ${table1.somethin_like_a_foreign_key} AND
>>>> ${table1.somethin_like_a_foreign_key} > 0 AND id =
>>>> ${table1.somethin_like_a_foreign_key}
>>>>
>>>> Cheers
>>>> Avlesh
>>>>
>>>> On Wed, Oct 28, 2009 at 11:03 PM, Jonathan Hendler <
>>>> jonathan.hend...@gmail.com> wrote:
>>>>
>>>> I have a nested entity on a jdbc data import handler that is causing an
>>>>
>>>>> SQL
>>>>> error because the second key is either NULL (blank when generating the
>>>>> sql)
>>>>> or non-zero INT.
>>>>> The query is in the following form:
>>>>>
>>>>> <document name="content">
>>>>>            <entity name="bl_lessonfiles"
>>>>> transformer="TemplateTransformer" query="SELECT * FROM table1 ">
>>>>>                  ...
>>>>>                    <entity name="user_index" query="SELECT *  FROM
>>>>> table2 WHERE  id = ${table1.somethin_like_a_foreign_key} ">
>>>>>                        ....
>>>>>                    </entity>
>>>>>            </entity>
>>>>>    </document>
>>>>>
>>>>> Is the only way to avoid this to modify the source DB schema to be NOT
>>>>> NULL
>>>>> so it always returns at least a 0?
>>>>>
>>>>> - Jonathan
>>>>>
>>>>>
>>>>>
>>>
>

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