DB2 FOR LUW / DB2FORLUW / B10 - DB2

Remarks on view columns not retained after changes to base 
table. 
 
When we alter underline table, the Remarks on the Columns of our 
views were lost 
e.g. 
$ db2 "create table t1 (col1 varchar(10))" 
DB20000I The SQL command completed successfully. 
 
$ db2 "create view v1 as select col1 from t1" 
DB20000I The SQL command completed successfully. 
 
$ db2 "comment on column jbms.v1.col1 is 'Hello world'" 
DB20000I The SQL command completed successfully. 
 
$ db2 "select char(remarks,30) from syscat.columns where tabname 
= 'V1'" 
1 
------------------------------ 
Hello world 
1 record(s) selected. 
 
 
$ db2 "alter table t1 
alter column col1 set data type varchar(20)" 
DB20000I The SQL command completed successfully. 
$ db2 "select * from v1" 
COL1 
-------------------- 
0 record(s) selected. 
 
 
$ db2 "select char(remarks,30)  from syscat.columns where 
tabname = 'V1'" 
1 
------------------------------ 
- 
1 record(s) selected. 
 
So Alter statement on Base table deleting the Remark on 
view.column after "select * from view" (refreshing view)

**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 11.1 Mod 2 Fix Pack 2 or higher               * 
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DB2 Version 11.1 Mod 2 Fix Pack 2 for Linux, UNIX, and Windows
 Db2 Version 11.1 Mod2 Fix Pack2 iFix001 for Linux, UNIX, and Windows
 Db2 Version 11.1 Mod2 Fix Pack2 iFix002 for Linux, UNIX, and Windows
 Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
 Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
 Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
 

First fixed in DB2 11.1 Mod 2 Fix Pack 2

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

17.02.2017
23.06.2017
23.06.2017