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From "George Hongell (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-56) in derby concat with input parameter needs a cast, otherwise becomes long varchar and some operations do not work
Date Wed, 20 Sep 2006 16:56:22 GMT
in derby concat with input parameter needs a cast, otherwise becomes long varchar and some
operations do not work
-----------------------------------------------------------------------------------------------------------------

                 Key: OPENJPA-56
                 URL: http://issues.apache.org/jira/browse/OPENJPA-56
             Project: OpenJPA
          Issue Type: Bug
          Components: query
         Environment: Windows xp, derby, openjpa  version 443432.

            Reporter: George Hongell
         Attachments: failureEntities.jar

run on version 443432.
in derby concat with input parameter needs a cast, otherwise becomes long varchar and some
operations do not work
(NOTE:already done if concat is inside substring eg. substring(concat(xxx,yyy),n,m)

EJBQL:
select d from EmpBean e left join e.dept d where concat(d.name, 'ahmad') = 'AhmadDept' 
 
OPENJPA ERROR OR SQL PUSHDOWN:
Comparisons between 'LONG VARCHAR' and 'LONG VARCHAR' are not supported. {SELECT t1.deptno,
t1.budget, t1.mgr_empid, t1.name, t1.reportsTo_deptno FROM EmpBean t0 LEFT OUTER JOIN DeptBean
t1 ON t0.dept_deptno = t1.deptno WHERE ((t1.name||?) = ?)} [code=30000, state=42818] 

SUGGESTED SQL PUSHDOWN:
select t1.deptno, t1.name FROM EmpBean t0 LEFT OUTER JOIN DeptBean t1 ON t0.dept_deptno =
t1.deptno WHERE (cast((t1.name||?) as Varchar(1000))) = ?  {String ahmad, String AhmadDept}



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