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<disclaimer>I posted this message on comp.sys.ibm.as400.misc too: sorry for
the cross-post, but that newsgroup seems a bit negleted</disclaimer>
I'm trying to support AS400 database in Activiti (
http://www.activiti.org).
This open source project creates lots of query like this:
SELECT SUB.* FROM
(select
RES.* , row_number() over (Order by A.field1) rnk
FROM (select A.field1, B.field1 from A inner join B on A.X = B.Y) RES
) SUB
WHERE SUB.rnk >= ? AND SUB.rnk < ?
Unfortunately this query fails with msg SQL5001 - Column qualifier or table
A undefined.
Note that if I change my statement this way:
SELECT SUB.* FROM
(select
RES.* , row_number() over (Order by NEW_NAME) rnk
FROM (select A.field1 NEW_NAME, B.field1 from A inner join B on A.X = B.Y)
RES
) SUB
WHERE SUB.rnk >= ? AND SUB.rnk < ?
all works fine (but I can't modify Activiti this way :-).
Is it a bug of SQL parser or I don't understand something?
Any suggestion?
Thanks!
Bye
Franco
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.francolombardo.net
Scala, Java, As400.....
http://twitter.com/f_lombardo
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
midrange.com
