|
Problem IT04567
|
Status: Closed |
XQUERY PERFORMANCE MAY SLOW DUE TO SMALL HASH MAPPING SIZE WHEN LET CLAUSES BIND VARIABLES TO LONG SEQUENCES |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
XQUERY performance may slow due to small hash mapping size when
let clauses bind variables to long sequences
If you collect db2trc with perfcount, you will see
XmlnvAutomaton_bufferUpIntermediateResult is taking long time. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 UDB version 9.7 Fixpack 11. *
**************************************************************** |
| Local Fix: |
|
| Solution |
Problem was first fixed in DB2 UDB Version 9.7 FixPack 11. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 24.09.2014
08.10.2015
08.10.2015 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP11
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.11
|
 |
