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Problem IT36311
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Status: Closed |
WHEN RUNNING NLJN against COLUMNAR TABLES IT IS POSSIBLE TO GET SQL0901N ERROR
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| product: |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 |
| Problem description: |
WHEN RUNNING NLJN against COLUMNAR TABLES,
and NLJN is executed in Columnar portion of the plan,
and some or more NLJN payload columns are variable-length data
type (varchar, varbinary, etc.)
it is possible to get
SQL0901N error with the following message reported in
db2diag.log:
AssertionFailedException: An assertion 'varlen |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Db2 user who runs NLJN queries against column-organized *
* tables *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to the latest fix pack *
**************************************************************** |
| Local Fix: |
Add the optimize guideline (in the query level):
/*
*/
or set this registry variable for entire instance:
db2set DB2_COL_RUNPROF_CBS="ON VARLEN_KEY_HT OFF" |
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Db2 user who runs NLJN queries against column-organized *
* tables *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to the latest fix pack *
**************************************************************** |
| Comment |
Problem was first fixed in DB2 v11.5.6.0 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 22.03.2021
14.06.2021
14.06.2021 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
