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Problem IC64655
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Status: Geschlossen |
OPTIMIZER UNEXPECTEDLY FAVOURS THE REVERSE ISCAN |
| Produkt: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problembeschreibung: |
Performance degradation due to reverse iscan |
| Problem-Zusammenfassung: |
User Affected: All
Problem Description: OPTIMIZER UNEXPECTEDLY FAVOURS THE REVERSE
ISCAN
Problem Summary: OPTIMIZER UNEXPECTEDLY FAVOURS THE REVERSE
ISCAN |
| Local-Fix: |
db2set DB2_EXTENDED_OPTIMIZATION=NO_REVSCAN_JOIN |
| verfügbare FixPacks: |
DB2 Version 9.7 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Lösung |
Fixed in fixpak 1 for v9.7 |
| Workaround |
db2set DB2_EXTENDED_OPTIMIZATION=NO_REVSCAN_JOIN |
| Weitere Daten |
Datum - Problem gemeldet :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
| 18.11.2009
24.02.2010
24.02.2010 |
| Problem behoben ab folgender Versionen (IBM BugInfos) |
9.7.
|
| Problem behoben lt. FixList in der Version |
| 9.7.0.1
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