|
Problem IC79268
|
Status: Closed |
POSSIBLE TRAP DURING QUERY COMPILATION IN A DATABASE THAT USES UCA-BASED COLLATION |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
This problem can occur in a database using UCA-based collation
during query compilation of an SQL statement that contains one
or more equality join predicates that reference columns of type
CHAR, VARCHAR, GRAPHIC, VARGRAPHIC and one or both of the
columns in the join predicate have distribution statistics
collected. The problem does not occur if the character type is
FOR BIT DATA.
You can identify that you hit this problem if the following
function list is found in the trap file stack trace:
sqlnlsICUstrcollUTF16BE
sqlv_g_varUCA_comp
sqlrxcp2
sqlno_compare_literal
sqlno_nud_compare_literal
sqlno_ff_updateEffHighLowKeys
sqlno_ff_col_eq_col
sqlno_ff_compute_atomprd
This problem was first introduced in the following DB2 releases:
Version 9.5 Fix Pack 8
Version 9.7 Fix Pack 4 |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Users with databases that use UCA-based collation *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Update to Version 9.7 Fix Pack 6 *
**************************************************************** |
| Local Fix: |
You can avoid the problem by not collecting distribution
statistics on the join predicate columns. |
| available fix packs: |
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Problem was first fixed in Version 9.7 Fix Pack 6 |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC79309
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 18.10.2011
02.08.2012
02.08.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.6
|
 |
