|
Problem IC66075
|
Status: Closed |
SQL0901N RETURNED WHEN >=4 QUERY ORDER BY COLUMNS ARE EQUIVALENT TO CONSTANTS |
| product: |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 |
| Problem description: |
To hit the problem, a query needs satisfy all the following
characteristics:
(1) Query has UNION ALL or LEFT OUTER JOIN construct.
(2) Query has ORDER BY clause applied on the result of UNION ALL
or
LEFT OUTER JOIN
(3) At least two columns in ORDER BY clause are equivalent.
(4) The Fetch First N rows clause is used.
The problem symptom is one of two SQL0901N errors:
SQL0901N The SQL statement failed because of a non-severe
system error.
Subsequent SQL statements can be processed. (Reason
"this->qclqclord.pp() !=
NULL".) SQLSTATE=58004
or
SQL0901N The SQL statement failed because of a non-severe
system error.
Subsequent SQL statements can be processed. (Reason
"sqlno_int_order_opr_req
[400]:rc(-2144272209) Sibling order r".) SQLSTATE=58004
An example query is
select * from table (select * from t1 union all select * from
t2)
where c1 = 1 and c2 = 2 and c3 = 1 and c4 = 4
order by c1, c2, c3, c4
fetch first row only; |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* all *
****************************************************************
* PROBLEM DESCRIPTION: *
* SQL0901N error may be returned on some very specific *
* SQLstatements.See long description in apar text for a detail *
* on theconditions. *
****************************************************************
* RECOMMENDATION: *
* Upgrade the server to V9.5 Fix Pack 6, or apply one of *
* theworkarounds mentioned. *
**************************************************************** |
| Local Fix: |
Remove the ORDER BY columns that equal to constants.
Or change predicate "c3=1" to "c3=1.0". |
| available fix packs: |
DB2 Version 9.5 Fix Pack 6a for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
The problem was first fixed in V9.5 Fix Pack 6 |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC66189 IC66190 IC66191
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.02.2010
22.06.2010
28.07.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.5.FP6,
9.5.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
