DB2 - Problem description
| Problem IC67765 | Status: Closed |
QUERY WITH RANGE PARTITIONED TABLE CAN FAIL WITH SQL0901 "BAD PL AN; UNRESOLVED QNC FOUND" IF PREDICATES ELIMINATE ALL PARTITIONS | |
| product: | |
DB2 FOR LUW / DB2FORLUW / 980 - DB2 | |
| Problem description: | |
A query can fail with with SQL0901, "Bad Plan; Unresolved QNC
found".
The conditions triggering the failure include a range
partitioned table where applying some of the predicates, but not
all predicates, will eliminate all partitions in a range
partitioned table.
The db2diag.log will contain the following message:
2010-03-18-11.24.10.716184-240 I624697E862 LEVEL: Severe
PID : 23763 TID : 187955145056 PROC :
db2sysc 1
INSTANCE: db2inst1 NODE : 001 DB : SAMPLE
APPHDL : 1-32931 APPID:
*LOCAL.db2inst1.10031516111
AUTHID : DB2INST1
EDUID : 151518 EDUNAME: db2agent (SAMPLE) 1
FUNCTION: DB2 UDB, relation data serv, sqlrr_dump_ffdc,
probe:300
DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes
sqlcaid : SQLCA sqlcabc: 136 sqlcode: -901 sqlerrml: 30
sqlerrmc: Bad Plan; Unresolved QNC found
sqlerrp : SQLNG006
sqlerrd : (1) 0x00000000 (2) 0x00000000 (3)
0x00000000
(4) 0x00000001 (5) 0xFFFFFFCE (6)
0x00000001
sqlwarn : (1) (2) (3) (4) (5) (6)
(7) (8) (9) (10) (11)
sqlstate: | |
| Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users of range partitioned tables * **************************************************************** * PROBLEM DESCRIPTION: * * See above. * **************************************************************** * RECOMMENDATION: * * Upgrade to Fix Pack 4 or a later release that contains the * * fix. * **************************************************************** | |
| Local Fix: | |
| available fix packs: | |
DB2 Version 9.8 Fix Pack 4 for AIX and Linux | |
| Solution | |
Problem was first fixed in Version 9.8 Fix Pack 4. | |
| Workaround | |
not known / see Local fix | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 09.04.2010 02.08.2011 02.08.2011 |
| Problem solved at the following versions (IBM BugInfos) | |
9.8.FP4 | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 9.8.0.4 |
|