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MA45887 - LIC-DB-INCORROUT OLAP WITH ORDER BY OF LOB

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-DB-INCORROUT OLAP WITH ORDER BY OF LOB

Error Description

The following query returns the wrong data for the OLAP        
function.                                                      
select  rank() over(order by b.qq1000l),  b.qq1000l from        
plancache b                                                    
where  b.qqrid=5005                                            
and b.qqjfld in (select qqjfld from plancache                  
                  where qqrid = 1000 and qq1000 like            
'%BVCUR05L%')                                                  
order  by b.qq1000l  ;                                          

Problem Summary

The following query returns the wrong data for the OLAP        
function.                                                      
select  rank() over(order by b.qq1000l),  b.qq1000l from        
plancache b                                                    
where  b.qqrid=5005                                            
and b.qqjfld in (select qqjfld from plancache                  
                  where qqrid = 1000 and qq1000 like            
'%BVCUR05L%')                                                  
order  by b.qq1000l  ;                                          

Problem Conclusion

The query optimizer was incorrectly handling the LOB field when
it was specified in the ORDER BY of a RANK or DENSE_RANK OLAP  
expression.  The problem has been corrected.                    

Temporary Fix

Comments

Circumvention


PTFs Available

R710 MF64403 PTF Cover Letter   1000
R720 MF62740 PTF Cover Letter   7068
R730 MF62577 PTF Cover Letter   7061

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... No
Component.................................. 9400DG3DB
Failing Module.......................... RCHMGR
Reported Release................... R730
Duplicate Of..............................




System i Support

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Document Information

Modified date:
09 January 2018