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MF61657 - OSP-DB-OTHER-INCORROUT for key positioning, if OPNQRYF KEYFL

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Abstract

OSP-DB-OTHER-INCORROUT for key positioning, if OPNQRYF KEYFL


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R3M0    MF61658   00/00    0000



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APAR Error Description / Circumvention

-----------------------------------------------
Migrated from 610 to 720 since then have experience incorrect
output from a production processes

The key fields being used in the customer's RPG do not match
what is in OPNQRYF. The following changes were tried:

- remove the 4th key in OPNQRYF and recompile CL program - same
issue
- Created an index to match the RPG key fields and recompile RPG
program - same issue
- RPG does use SETLL but not using the options in memo to users

Results:
- CQE returns 4 rows with building a temp file
- SQE returns 2 rows with using PF Access path to access the
data

CORRECTION FOR APAR MA45431 :
-----------------------------
The SQE optimizer may select an index that has ordering that is
exactly reversed from the KEYFLD ordering for native queries, to
save time and cycles building an index with the required
ordering.

When this is done, the collation is reversed by the query to
obtain the required ordering.  There was a problem with this
reversal for certain key positioning requests.  This could
result in some equal not being returned.  This issue was fixed.

CIRCUMVENTION FOR APAR MA45431 :
--------------------------------
None.


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Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R3M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA45431
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C6299730


System i Support

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Document Information

Modified date:
22 April 2016