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MF63766 - LIC-DB-OTHER Unable to VE very complex plan from Plan Cache

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DB-OTHER Unable to VE very complex plan from Plan Cache


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R2M0    MF61753   00/00    0000
CO   5770999  V7R2M0    MF63764   00/00    0000
CO   5770999  V7R2M0    MF63144   00/00    0000
CO   5770999  V7R2M0    MF63145   00/00    0000
CO   5770999  V7R2M0    MF59853   00/00    0000
CO   5770999  V7R2M0    MF58954   00/00    0000
CO   5770999  V7R2M0    MF58635   00/00    0000
CO   5770999  V7R2M0    MF58458   00/00    0000



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APAR Error Description / Circumvention

-----------------------------------------------
Unable to Visual Explain a very complex large query from the
plan cache.

CORRECTION FOR APAR MA45857 :
-----------------------------
The query optimizer was not allocating enough space to generate
the visual explain data for the query.   Doing a plan cache
snapshot for the query also resulted in missing records.   The
query optimizer will now allocate a teraspace for a working
space if it determines the query is very large.

CIRCUMVENTION FOR APAR MA45857 :
--------------------------------
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
--------------  ------------------------------------------------------------
   MF63143      LIC-DB-OTHER-INCORRECT INAVIGATOR PLAN CACHE ANALYSIS OF ACC
   MF62978      LIC-DB-INCORROUT Plan Cache Snapshot QQC12 for 3014 Record
   MF61925      LIC-DB PERFM Increase the size of the SQE Visual Explain Str
   MF61777      LIC-DB-OTHER Add key range estimate information to database
   MF61386      LIC-DB Internal Database Maintenance
   MF61249      LIC-DB-OTHER-INCORROUT ON SQL PLAN CACHE SNAPSHOT SHOW STATE
   MF61216      OSP-INCORROUT VISUAL EXPLAIN 3 OF TIMESTAMPS ARE INCORRECT.
   MF60574      LIC-DB Internal maintenance
   MF60463      LIC-DB-UNPRED 0600 BADD vlogs during Plan cache snapshot
   MF59858      LIC-DB-UNPRED Ensure order of partitions in partitioned tabl
   MF58957      LIC-DB-OTHER Internal Maintenance
   MF58634      LIC-DB-OTHER Internal maintenance
   MF58537      OSP-DB SOME FUNCTIONS IN VISUAL EXPLAIN MAY FAIL IF AN INDEX
   MF58521      OSP-DB-OTHER-INCORROUT DIFFERENCES BETWEEN CCSID 65535 AND 5
   MF58457      OSP-DB-Other Enable additional Plan Cache Properties and opt
   MF58129      OSP-DB-OTHER-MSGCPF5035 CPF5035 WHEN DUMPING PLAN CACHE SNAP
   MF57714      OSP-DB-OTHER-INCORROUT VISUAL EXPLAIN FAILS WITH "NO EXPLAIN

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA45857
Superseded by:......................View fix details for PTF MF67280
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C7290720


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Document Information

Modified date:
01 June 2020