DB2 - Problem description
| Problem IC65912 | Status: Closed |
INCORRECT RESULTS DUE TO WRONG TQ OPERATION PRODUCED BY NODONUMBER/DBPARTITIONNUM SCALAR FUNCTION. | |
| product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
| Problem description: | |
A query with nodenumber/dbpartitionnum scalar function might
return incorrect results. The query may fail to collect rows
from
specified database partition(s) if all the following conditions
are met:
1. The query involves a UNION (could also be via view with
union or full outer join which the compiler will generate a
union for)
2. At least one branch below the UNION applies a NODENUMBER or
DBPARTITIONNUM function
3. There is a DTQ below the UNION (in db2exfmt output), and the
details of the DTQ in the db2exfmt output shows the following:
Output Streams:
--------------
...
Partitioning: (FUNC )
NODENUMBER() or PARTITION() directed to Single
Partition
...
Partition Column Names:
----------------------
+NONE | |
| Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users who use nodenumber/dbpartitionnum scalar function * * inDPF environment. * **************************************************************** * PROBLEM DESCRIPTION: * * A query with nodenumber/dbpartitionnum scalar function * * mightreturn incorrect results. The query may fail to collect * * rowsfromspecified database partition(s) if all the * * followingconditionsare met: * * * * 1. The query involves a UNION (could also be via view * * withunion or full outer join which the compiler will * * generate aunion for) * * 2. At least one branch below the UNION applies a * * NODENUMBERorDBPARTITIONNUM function * * 3. There is a DTQ below the UNION (in db2exfmt output), * * andthedetails of the DTQ in the db2exfmt output shows the * * following: * * Output Streams: * * -------------- * * ... * * Partitioning: (FUNC ) * * NODENUMBER() or PARTITION() directed to SinglePartition * * ... * * Partition Column Names: * * ---------------------- * * +NONE * **************************************************************** * RECOMMENDATION: * * Please upgrade to DB2 V9.7 fixpack 2 or later. * **************************************************************** | |
| Local Fix: | |
| available fix packs: | |
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows | |
| Solution | |
Problem was first fixed in Version 9.7 Fix Pack 2 (s100514). | |
| Workaround | |
not known / see Local fix | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 28.01.2010 06.07.2010 06.07.2010 |
| Problem solved at the following versions (IBM BugInfos) | |
9.7.FP2 | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 9.7.0.2 |
|