DB2 - Problem description
Problem IT02722 | Status: Closed |
INVALID FILTER FACTOR ESTIMATION FOR RANGE PREDICATE | |
product: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
Problem description: | |
Under rare circumstances DB2 optimizer may calculate invalid Filter Factor for range predicate(s). The invalid Filter Factor for the range predicate will be noticed in a query plan explain output (db2exfmt) as following: Filter Factor: -1.#IND Following are the conditions to hit this issue: - DB2 LUW running on Windows platform - string column (char or varchar) - quantile distribution statistics have been collected on the column - range predicate on the column | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 V10.1 FixPack 5 * **************************************************************** | |
Local Fix: | |
Solution | |
First fixed in DB2 V10.1 FixPack 5 | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 23.06.2014 16.07.2015 16.07.2015 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) | |
10.1.0.5 |