|
Problem IT25495
|
Status: Closed |
DB2 MAY RETURN SQL0901N ERROR WHEN COMPILING A QUERY CONTAINING A GROUP BY AND OLAP FUNCTIONS
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| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
Db2 may return error SQL0901N: "sqlno_smp_create_pgby: Removed
all col" when the following criteria is met:
- intra-partition parallelism is enabled
- a primary key/unique index is on a table T in the query
- the query contains an OLAP function with ordering on a column
from T that is not in the primary key/unique index
- the query contains a group by that includes the primary
key/unique index columns and does not include the OLAP ordered
column |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* See Local Fix *
**************************************************************** |
| Local Fix: |
Inhibit intra-partition parallelism for the instance by setting
the CURRENT DEGREE special register to '1' or for a specific SQL
query via an optimizer guideline. |
| Solution |
|
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 26.06.2018
14.08.2020
14.08.2020 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
