DB2 - Problem description
Problem IC67267 | Status: Closed |
PREDICATE OF THE FORM "<CONCAT EXPRESSION> = G'CONSTANT'" RESULTS IN WRONG DATA RETURNED FROM QUERY | |
product: | |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 | |
Problem description: | |
A query containing a predicate of the form "<CONCAT expression> = G'constant'" may return wrong results. The CONCAT expression must be a concatenation of one or more GRAPHIC columns or GRAPHIC constants and the result size of each side of the predicate must be the same. Here are some examples of problematic queries: CREATE TABLE T1 ( G1 GRAPHIC(4), G2 GRAPHIC(3)) ); SELECT * FROM T1 WHERE ( G1|| G2 ) = G'ABCDXYZ'; SELECT * FROM T1 WHERE G'ABCDXYZ' = ( G'ABCD' || G2 ) | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * A query containing a predicate of the form "<CONCAT * * expression> = G'constant'" may return wrong results. The * * CONCAT expression must be a concatenation of one or more * * GRAPHIC columns or GRAPHIC constants and the result size of * * each side of the predicate must be the same. Here are some * * examples of problematic queries: * * * * CREATE TABLE T1 ( G1 GRAPHIC(4), G2 GRAPHIC(3)) ); * * * * SELECT * FROM T1 WHERE ( G1|| G2 ) = G'ABCDXYZ'; * * * * SELECT * FROM T1 WHERE G'ABCDXYZ' = ( G'ABCD' || G2 ) * **************************************************************** * RECOMMENDATION: * * Upgrade To DB2 Version 9.5 Fix Pack 6 * **************************************************************** | |
Local Fix: | |
Add one or more trailing spaces to the GRAPHIC constant side of the predicate: SELECT * FROM T1 WHERE ( G1 || G2 ) = G'ABCDXYZ '; SELECT * FROM T1 WHERE G'ABCDXYZ ' = ( G'ABCD' || G2 ) | |
Solution | |
First Fixed In DB2 Version 9.5 Fix Pack 6 | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 17.03.2010 14.10.2010 14.10.2010 |
Problem solved at the following versions (IBM BugInfos) | |
9.5.FP6 | |
Problem solved according to the fixlist(s) of the following version(s) |