DB2 - Problembeschreibung
Problem IC67843 | Status: Geschlossen |
AN OR PREDICATE CONTAINING INLIST SUBTERM MAY BE REWRITTEN TO UNION | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problembeschreibung: | |
An OR predicate can be rewritten to UNION such that the OR subterm predicates can be processed individually at each UNION leg. To receive this rewrite transformation, the OR subterm predicate must meet certain criterion to ensure the superiority of query performance. The case to be handled is OR subterm predicate is an IN predicate. This IN predicate should have a form such that (i) the operand column is a leading index key or a column from the index whose leading columns are bound via local equality predicate and (ii) IN list elements are composed of only constants, host variables, special registers, arithmetic operations, datetime operations, string concat, case expression, casting functions, and scalar functions. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * All users using an OR predicate containing INLIST subterm * **************************************************************** * PROBLEM DESCRIPTION: * * AN OR PREDICATE CONTAINING INLIST SUBTERM MAY BE REWRITTENTO * * UNION * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 V9.7 Fixpack 3 * **************************************************************** | |
Local-Fix: | |
verfügbare FixPacks: | |
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows | |
Lösung | |
Fixed in DB2 V9.7 Fixpack 3 | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Bug-Verfolgung | |
Vorgänger : APAR is sysrouted TO one or more of the following: IC69872 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 13.04.2010 07.10.2010 07.10.2010 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.7.FP3 | |
Problem behoben lt. FixList in der Version | |
9.7.0.3 | |
9.7.0.3 |