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Problem IT04582
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Status: Closed |
DB2 can trap in function sqlno_crule_nljn under rare circumstances |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
DB2 can trap during compiling a query under rare circumstances,
when either one of the following conditions is true:
- the query meets the criteria to be recognized as a star schema
for the purposes of a zigzag join, and if the query includes
more than one fact table with common associated dimension tables
- the query contains XML path expressions
The top of the stack contains the following functions:
sqlno_crule_nljn
sqlno_crule_join_choices
sqlno_crule_join_order
sqlno_crule_join_root
sqlno_crule_join
sqlno_gen_partitions_for_QTB
sqlno_plan_end_opr |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 10.5 Fix Pack 5 *
**************************************************************** |
| Local Fix: |
If the trapping query is eligible for zigzag join, then the
problem can be worked around by disabling zigzag join, that is,
by setting DB2_REDUCED_OPTIMIZATION=ZZJN OFF |
| Solution |
First Fixed in DB2 Version 10.5 Fix Pack 5 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 24.09.2014
13.03.2015
13.03.2015 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.5.0.5
|
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