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MF59243 - LIC-DB-OTHER-PERFM HIGHER CPU CONSUMPTION FOR QUERY AFTER AP

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DB-OTHER-PERFM HIGHER CPU CONSUMPTION FOR QUERY AFTER AP


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R2M0    MF57839   00/00    0000
CO   5770999  V7R2M0    MF59244   00/00    0000
CO   5770999  V7R2M0    MF59186   00/00    0000
CO   5770999  V7R2M0    MF59187   00/00    0000
CO   5770999  V7R2M0    MF58634   00/00    0000
CO   5770999  V7R2M0    MF58633   00/00    0000
CO   5770999  V7R2M0    MF58151   00/00    0000
CO   5770999  V7R2M0    MF57705   00/00    0000
DIST 5770SS1  V7R2M0    SI53245   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

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REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
A query which was previously able to re-use cached query results
may no longer be able to do so after application of recent ptfs.
This can result in higher CPU consumption for jobs which run the
same query repetitively.

CORRECTION FOR APAR MA44121 :
-----------------------------
This PTF will allow the SQL runtime to re-use cached SQL query
results when possible.

CIRCUMVENTION FOR APAR MA44121 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF59188      LIC-DB-Other Internal Maintenance
   MF59141      LIC-DB-INCORROUT Native Key positioning
   MF58955      LIC-DB-OTHER Internal Maintenance
   MF58858      LIC-DB-OTHER-PERFM QUERY OPTIMIZER DOES NOT IMPLEMENT VIA AN
   MF58811      LIC-DB-OTHER-INCORROUT SYSTEM CRASH DURING NORMAL OPERATIONS
   MF58811      LIC-DB-OTHER-PERFM SMP IMPLEMENTATION LEADS TO POOR SQL QUER
   MF58794      OSP-UNPRED RPG PROGRAM WITH EMBEDDED SQL RETURNS NO RESULT S
   MF58635      LIC-DB-OTHER Internal maintenance
   MF58577      OSP-DB-OTHER-F/ASSERT-T/QQQOOODBOP-MSGMCH3203 SQL SELECT STA
   MF58538      LIC-DB-OTHER Internal Maintenance
   MF58536      OSP-DB-OTHER-INCORROUT DIFFERENCES BETWEEN CCSID 65535 AND 5
   MF58334      OSP-DB-OTHER-F/QDBIOERRQO-T/QSQRUN2-MSGCPF503E MSGSQL0502-F/
   MF58194      LIC-DB-MSGMCH3203 Update query with RCAC
   MF58150      LIC-DB Internal Maintenance
   MF58141      OSP-DB-OTHER-F/QQQOOODBOP-T/QQQOOOINV-MSGMCH3203 QUERIES FAI
   MF58141      LIC-DB-OTHER-PERFM DELETE STATEMENT WITH NOT IN PREDICATE IS
   MF58133      LIC-DB-MSGMCH3203 Delete from a Partitioned Table
   MF58092      LIC-DB Internal Maintenance
   MF57849      LIC-DB Internal Maintenance
   MF57804      LIC-DB Internal Maintenance
   MF57777      LIC-DB Internal Maintenance
   MF57702      LIC-DB-MSGMCH3203 Grouping Sets
   MF57623      LIC-DB Internal Maintenance

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA44121
Superseded by:...................... View fix details for PTF MF66637
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C5135720


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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: MF59243

Modified date: 04 November 2014