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MF65086 - LIC-DB-OTHER-UNPRED CARDINALITY CAPPED AT 4B (MAX 4-BYTE INT

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PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DB-OTHER-UNPRED CARDINALITY CAPPED AT 4B (MAX 4-BYTE INT


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R2M0    MF65085   00/00    0000



NOTICE:
-------
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APAR Error Description / Circumvention

-----------------------------------------------
Cardinality capped at 4B (max 4-byte Int).

Internal storage is an 8-byte INT, but SLIC Index and SQE are
limiting the max key count to a 4-byte integer count.

CORRECTION FOR APAR MA47141 :
-----------------------------
For a partitioned table with over ~4 billion records, the
statistics engine may use a spanning index to find the number of
distinct values across a set of columns.  This calculation was
capping the cardinality at ~4 billion (the max integer that can
be represented in 4 bytes).  New code is being added to allow
larger cardinalities.

CIRCUMVENTION FOR APAR MA47141 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF64856      OSP-PAR-940XMISC INACCURATE INDEX PROBE I/O COSTING LEADS TH

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA47141
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C9123720


System i Support

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Document Information

Modified date:
14 September 2018