|
Problem IT07731
|
Status: Closed |
DB2 MIGHT PRODUCE ABEND OR PRODUCE SQL0901N WHEN EXECUTING A RECURSIVE QUERY WITH A JOIN ON EXPRESSIONS |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
Under rare scenarios, DB2 might abend or produce SQL0901N when
the following conditions are true:
1) DB2 must be running on MPP configuration
2) The query contains a recursive UNION ALL construct
3) The recursive branch of the UNION ALL contains one or more
join predicates
4) Atleast one of the joins is of type: <expression> = <col>,
where <expression> involves only columns from a single subselect
eg. T1.C1 + T1.c2 + 1 = T2.c1 |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* MPP *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1 Fix Pack 5 or higher. *
**************************************************************** |
| Local Fix: |
Manually rewrite the query to push the expression to the
subselect and use the output column reference for join predicate |
| Solution |
Problem first fixed in DB2 version 10.1 Fix Pack 5. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 16.03.2015
26.07.2015
26.07.2015 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.5
|
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