DB2 - Problembeschreibung
Problem IC69523 | Status: Geschlossen |
DB2 MAY RETURN INCORRECT RESULTS WITH CORRELATED PREDICATE AND OLAP FUNCTIONS IN DPF MODE | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 910 - DB2 | |
Problembeschreibung: | |
The incorrect results problem only happens in DPF mode. This problem occurs in a query that uses OLAP functions and uses a correlated predicate applied to the input to the OLAP functions. For example, select 1 from activity a, table(select p.actno, sum(emptime) over(partition by p.actno) time -- OLAP function from proj_act p left join emp_act e on p.projno = e.projno and a.actno = e.actno) e -- correlated predicate where a.actno=160 To verify that whether any query faces this problem or not, inspect the db2exfmt output of the query. The db2exfmt that shows the table being the parent table of the correlation (table activity in the example) is accessed under the processing of the OLAP function of the query. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * The incorrect results problem only happens in DPF mode. * * * * * * * * This problem occurs in a query that uses OLAP functions and * * uses * * a correlated predicate * * * * applied to the input to the OLAP functions. * * * * * * * * For example, * * * * * * * * select 1 * * * * from activity a, * * * * table(select p.actno, sum(emptime) over(partition by * * * * p.actno) time -- OLAP function * * * * from proj_act p left join emp_act e * * * * on p.projno = e.projno * * * * and a.actno = e.actno) e -- * * correlated * * predicate * * * * where a.actno=160 * * * * * * * * To verify that whether any query faces this problem or not, * * * * inspect the db2exfmt output of the query. * * * * The db2exfmt that shows the table being the parent table of * * the * * correlation * * * * (table activity in the example) is accessed under the * * processing * * of the OLAP function of the query. * **************************************************************** * RECOMMENDATION: * * Upgraded to DB2 Version 9.1 Fix Pack 10 * **************************************************************** | |
Local-Fix: | |
Upgraded to DB2 version 9.1 Fix Pack 10. | |
verfügbare FixPacks: | |
DB2 Version 9.1 Fix Pack 10 for Linux, UNIX and Windows | |
Lösung | |
Upgraded to DB2 Version 9.1 Fix Pack 10 to resolve this problem. | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 29.06.2010 13.06.2011 13.06.2011 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.1.FP10 | |
Problem behoben lt. FixList in der Version | |
9.1.0.10 |