|
Problem IC63732
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Status: Closed |
AUTO_REVAL SET TO DEFERRED MAY CAUSE DROP ON A GENERATED COLUMN TO BE BLOCKED BY SQL0478N |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
A database configuration parameter, AUTO_REVAL, is introduced
in v9.7, and is set to DEFERRED by default for new databases
created in v9.7. When AUTO_REVAL is set to anything that is not
DISABLED, ALTER TABLE...DROP COLUMN is blocked when
dropping a generated column.
Example:
create table t1 (c1 integer not null primary key,c2 char(9) not
null,c3 char(8) not null generated always as (substr(c2,1,8)));
alter table t1 drop column c3
DB21034E The command was processed as an SQL statement because
it was not a valid Command Line Processor command. During SQL
processing it returned:
SQL0478N DROP, ALTER, TRANSFER OWNERSHIP or REVOKE on object
type "COLUMN" cannot be processed because there is an object
"SQL091007173914120", of type "CHECK CONSTRAINT", which depends
on it. SQLSTATE=42893 |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* UNKNOWN *
****************************************************************
* PROBLEM DESCRIPTION: *
* A database configuration parameter, AUTO_REVAL, *
* isintroducedin v9.7, and is set to DEFERRED by default for *
* new databasescreated in v9.7. When AUTO_REVAL is set to *
* anything that isnotDISABLED, ALTER TABLE...DROP COLUMN is *
* blocked whendropping a generated column.Example:create table *
* t1 (c1 integer not null primary key,c2 char(9)notnull,c3 *
* char(8) not null generated always as(substr(c2,1,8)));alter *
* table t1 drop column c3DB21034E The command was processed *
* as an SQL statementbecauseit was not a valid Command Line *
* Processor command. DuringSQLprocessing it returned:SQL0478N *
* DROP, ALTER, TRANSFER OWNERSHIP or REVOKE onobjecttype *
* "COLUMN" cannot be processed because there is an *
* object"SQL091007173914120", of type "CHECK CONSTRAINT", *
* whichdependson it. SQLSTATE=42893 *
****************************************************************
* RECOMMENDATION: *
* Set AUTO_REVAL to DISABLED, the default behaviour is *
* CASCADEDROP.Upgrade to DB2 Version 9.7 Fix Pack 2. *
**************************************************************** |
| Local Fix: |
Local Fix: Set AUTO_REVAL to DISABLED, the default behaviour is
CASCADE DROP |
| available fix packs: |
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 6 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 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 |
First fixed in DB2 Version 9.7 Fix Pack 2. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 13.10.2009
29.06.2010
29.06.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP2
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.2
|
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