|
Problem IC64051
|
Status: Closed |
QUERY DURING MQT MATCHING USING LIKE PREDICATES MAY FAIL WITH SQL0901N "SQLNN_TRA_1ST_ERR: THE TRA STACK IS EMPTY!" |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
A query using like predicate as:
.
c1 like '%'
.
where
(1) c1 is defined as NOT NULLABLE, and
(2) there exists an MQT or statistical view with no group-by
operation that the query without the above predicate can be
matched to, and
(3) the MQT or statistical view does not reference c1.
.
may fail with SQL0901N during MQT matching.
.
SQL0901N The SQL statement failed because of a non-severe
system error.
Subsequent SQL statements can be processed. (Reason
"sqlnn_tra_1st_err: the
tra stack is empty!".) SQLSTATE=58004
In the diag, you would see:
.
2008-06-17-08.34.26.780481-240 I3141488A448 LEVEL: Severe
PID : 1458304 TID : 1 PROC :
db2agent (INTTEST) 0
INSTANCE: inttest NODE : 000 DB : EDWINT
APPHDL : 0-325 APPID: *N0.inttest.080617123426
AUTHID : INTTEST
FUNCTION: DB2 UDB, relation data serv, sqlrr_dump_ffdc, probe:20
RETCODE : ZRC=0x80310025=-2144272347=SQLNN_E_BAD
"unexpected error and state is bad"
2008-06-17-08.34.26.788812-240 I3141937A810 LEVEL: Severe
PID : 1458304 TID : 1 PROC :
db2agent (INTTEST) 0
INSTANCE: inttest NODE : 000 DB : EDWINT
APPHDL : 0-325 APPID: *N0.inttest.080617123426
AUTHID : INTTEST
FUNCTION: DB2 UDB, trace services, sqlt_logerr_data, probe:0
DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes
sqlcaid : SQLCA sqlcabc: 136 sqlcode: -901 sqlerrml: 42
sqlerrmc: sqlnn_tra_1st_err: the tra stack is empty!
sqlerrp : SQLNN066
sqlerrd : (1) 0x80310025 (2) 0x00000025 (3)
0x00000000
(4) 0x00000000 (5) 0xFFFFFDA8 (6)
0x00000000
sqlwarn : (1) (2) (3) (4) (5) (6)
(7) (8) (9) (10) (11)
sqlstate:
.
The stack for the process shows:
.
0x0900000008303F10 sqloDumpEDU + 0x14
0x0900000008C7A070
sqldDumpContext__FP20sqle_agent_privatecbiN42PcPvT2 + 0x130
0x0900000007C42B68
sqldDumpContext__FP20sqle_agent_privatecbiN42PcPvT2@glue43A +
0x94
0x0900000008701F2C sqlrr_dump_ffdc__FP8sqlrr_cbiT2 + 0x224
0x0900000008F407BC
sqlzeDumpFFDC__FP20sqle_agent_privatecbUiP5sqlcai + 0x24
0x090000000870444C
sqlzeMapZrc__FP20sqle_agent_privatecbUiUlT2P5sqlcai + 0x154
0x090000000821EA28 sqlnn_erdm__FiN31 + 0x15C
0x090000000822139C sqlnn_erdm__FiN31@glue20 + 0x84
0x0900000007D78528
sqlnn_cmpl__FP20sqle_agent_privatecbP11sqlrrstrings17sqlnn_co
mpileModeT3P14sqlrr_cmpl_enviT7PP9sqlnq_qur + 0x610
0x0900000008DDA294
sqlnn_cmpl__FP20sqle_agent_privatecbP11sqlrrstrings17sqlnn_co
mpileModeT3P14sqlrr_cmpl_env + 0x24
0x0900000008DD8D18
sqlra_compile_var__FP8sqlrr_cbP14sqlra_cmpl_envPUciUsN54P16sq
lra_cached_varPiPUl + 0x608
0x0900000008FAC43C
sqlra_find_var__FP8sqlrr_cbP17sqlra_cached_stmt13sqlra_stmt_i
dUiT4PUcT4UsUcP14sqlra_cmpl_enviPiT11_T12_N311_T12_P14SQLP_LOCK_
INFOPP16sqlra_ca
ched_varT12_PUlb + 0x3B0
. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description text. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version Version 9.7 Fix Pack 1. *
**************************************************************** |
| Local Fix: |
1. Remove the like predicate from the query.
It is not needed because the predicate "c1 like '%'" is always
TRUE when c1 is non-nullable.
.
2. Add c1 to the SELECT list of the MQT or statistical view.
3. Drop the MQT or statistical view that matches to the query. |
| available fix packs: |
DB2 Version 9.7 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
The problem is first fixed in DB2 Version 9.7 Fix Pack 1. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 22.10.2009
16.02.2010
16.02.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP1
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.1
|
 |
