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Problem IT38081
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Status: Closed |
HIPER: WRONG RESULT WITH MULTIDIMENSIONAL CLUSTERING (MDC) TABLEAND ZIGZAG JOIN (ZZJN)
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| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
Db2 query may generate wrong result (loose rows) when
- inner table for ZZJN is Multidimensional Clustering (MDC)
table
- row compression enable for MDC table.
- block index predicate (i.e predicate on columns used in the
dimension clause)
- along with data-sargable predicate |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade server to DB2 v11.1 M4 FP7 *
**************************************************************** |
| Local Fix: |
Turn off ZZJN by issuing db2set -im
DB2_REDUCED_OPTIMIZATION="ZZJN OFF" |
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade server to DB2 v11.1 M4 FP7 *
**************************************************************** |
| Comment |
First fixed in v11.1 M4 FP7 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.08.2021
31.12.2021
31.12.2021 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
