|
Problem IC79694
|
Status: Closed |
-901 WHILE COMPILING A STATEMENT |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Under rare scenarios, DB2 can trap when compiling a SQL
statement if the following conditions are true:
1. The SQL statement has at least 2 joins.
2. The SQL statement has an equality join predicate. Assume one
of the columns that participate in the join predicate is T1.C1.
and Table T1 has a generated column that is generated based on
C1.
3. The generated column is not referenced in the SQL statement
Possible stack is:
0x0900000006BB1068
sqlnx_exp_get_qual_colname__FP3locP9sqlnq_qncPcPiT4 + 0xC
0x0900000006B8F670
sqlnx_exp_SORT_analyze__FP23sqlnx_exp_lolepop_parms + 0x7D4
0x0900000006BAB520
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x648
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
...
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BAF7A4
sqlnx_exp_descend_predicate__FP23sqlnx_exp_lolepop_parmsP9sqlno_
prdP19sqlno_plan_operatorP20sqlno_qun2plan_arrayPP19sqlno_plan_o
perator + 0x310
0x0900000006BAECEC
sqlnx_exp_process_predicates__FP23sqlnx_exp_lolepop_parmsiP19sql
no_plan_operator9sqlno_setPcP20sqlno_qun2plan_arrayPP19sqlno_pla
n_operatorN22 + 0x80
0x0900000006B969FC
sqlnx_exp_FILTER_post__FP23sqlnx_exp_lolepop_parms + 0x1C8
0x0900000006BAC1C8
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x12F0
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x0900000006BABF6C
sqlnx_exp_analyze_plan__FP23sqlnx_exp_lolepop_parms + 0x1094
0x09000000083775DC sqlnx_explain_plan__FP9sqlnq_qur + 0x864
0x0900000008376CBC sqlnx_explain_plan__FP9sqlnq_qur@glue764 +
0x74
0x090000000518D964
sqlnn_cmpl__FP8sqeAgentP11sqlrrstrings17sqlnn_compileModeT3P14sq
lrr_cmpl_enviT7PP9sqlnq_qur + 0x1B1C
0x0900000008E237FC
sqlnn_cmpl__FP8sqeAgentP11sqlrrstrings17sqlnn_compileModeT3P14sq
lrr_cmpl_env + 0x40
...
The query fails with -901 and/leads to a trap. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 6. *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 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 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 9.7 Fix Pack 6. |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC84177
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 09.11.2011
06.06.2012
06.06.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.6
|
 |
