DB2 - Problem description
Problem IT15827 | Status: Closed |
QUERIES CONTAIN EQUALITY JOINS WITH COLUMN OF DIFFERENT DATATYPES AND LIKE PREDICATE MAY EXPERIENCE A TRAP | |
product: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
Problem description: | |
Certain queries may experience a trap under certain conditions a) The query contain equality join predicates where at least one of the operands is an expression or if the operands are of different datatypes. b) At least one input to the join is a nested sub-select or view that contain the GROUP BY, UNION, INTERSECT or EXCEPT clauses. b) The query contains additional local predicates on the input data described in (b) such as col1 LIKE pattern SUBSTRING(col1,1,constant) [ <, <=, =, >=, > ] constant under Varchar2 compatibility mode the following predicate may also be susceptible varchar_column [ <, <=, =, >=, > ] char_column varchar_column [ <, <=, =, >=, > ] char_constant Possible Trap Stack: sqlno_is_subset sqlno_prop_twin sqlno_pred_build_eq_classes | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 10.1 Fix Pack 6 * **************************************************************** | |
Local Fix: | |
Solution | |
First fixed in DB2 10.1 Fix Pack 6 | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 22.06.2016 02.03.2017 02.03.2017 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |