DB2 FOR LUW / DB2FORLUW / A50 - DB2

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

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* USERS AFFECTED:                                              * 
* ALL                                                          * 
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* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
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* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.5 Fix Pack 5.                      * 
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First fixed in DB2 Version 10.5 Fix Pack 5.

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

08.07.2014
13.03.2015
13.03.2015