db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tim Dudgeon (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-2371) Setting a default value for a VARCHAR column fails when column contains data
Date Fri, 23 Feb 2007 16:14:05 GMT
Setting a default value for a VARCHAR column fails when column contains data
----------------------------------------------------------------------------

                 Key: DERBY-2371
                 URL: https://issues.apache.org/jira/browse/DERBY-2371
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.2.2.0, 10.2.1.6
         Environment: This probably affects all platforms.
            Reporter: Tim Dudgeon


I'm seeing a problem updating the default value for a VARCHAR column when the column already
contains data. I'm, using:

alter table TABLE_NAME alter column COL_NAME DEFAULT 'new value'

and with some VARCHAR columns I get an error like this:

Invalid character string format for type long.; nested exception is java.sql.SQLException:
Invalid character string format for type long.
Caused by: ERROR 22018: Invalid character string format for type long.
       at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
       at org.apache.derby.iapi.types.SQLChar.getLong(Unknown Source)
       at org.apache.derby.impl.sql.execute.AlterTableConstantAction.getColumnMax(Unknown
Source)
       at org.apache.derby.impl.sql.execute.AlterTableConstantAction.modifyColumnDefault(Unknown
Source)
       at org.apache.derby.impl.sql.execute.AlterTableConstantAction.execGuts(Unknown Source)
       at org.apache.derby.impl.sql.execute.AlterTableConstantAction.executeConstantAction(Unknown
Source)
       at org.apache.derby.impl.sql.execute.MiscResultSet.open(Unknown Source)
       at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
       at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)


This only happens on VARCHAR columns containing data. Columns that are entirely NULL update
fine. 

This was discussed on users mailing list:
http://www.nabble.com/problem-with-ALTER-COLUMN-DEFAULT-on-VARCHAR-column-tf3274046.html
and the conclusion was that it is related to this statement being run internally as part of
the updata process:
SELECT MAX(COL_NAME) FROM TABLE_NAME  

As reported in that discussion:

-bash-2.05b$ java org.apache.derby.tools.ij
ij version 10.3
ij> connect 'jdbc:derby:brydb';
ij> create table t (a varchar(10));
0 rows inserted/updated/deleted
ij> alter table t alter column a default 'my val';
0 rows inserted/updated/deleted
ij> insert into t (a) values ('hi');
1 row inserted/updated/deleted
ij> alter table t alter column a default 'another val';
ERROR 22018: Invalid character string format for type long.



-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message