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Problem IC84355
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Status: Closed |
USING MON, MONTH, DAY, DY IN THE FORMAT STRING IN FUNCTION TO_TIMESTAMP OR TIMESTAMP_FORMAT CAN AFFECT PERFORMANCE OF QUERY |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
Using MON, MONTH, DAY, Dy in the format string in TO_TIMESTAMP
or TIMESTAMP_FORMAT can affect the performance of the query due
to excessive calls to sqlnls_fmblk_callback or
sqlnls_gmblk_callback driving the contention on the memory latch
higher thus affecting the overall performance of the query.
This issue does not happen in DB2 v95 or lower. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Customer on DB2 levels above v95 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 v10 fixpack 1 *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 10.1 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
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| Solution |
Fixed in v10 fixpack 1 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 13.06.2012
10.12.2012
10.12.2012 |
| Problem solved at the following versions (IBM BugInfos) |
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| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.1
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| 10.5.0.1
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