Data Service template table handling of varchar

Using Data Services BI4.0 SP2 Patch 1

Oracle 11g

An error is found when building a workflow transforming a table A to a template table B

Data flow DF_XXXX|Reader Query

SQL submitted to Oracle Server <XXXX> resulted in error <ORA-12899: value too large for column

"XXXX"."TEMP_TABLE_B"."PROCESSING_LOG" (actual: 1001, maximum: 1000)

Per checking, I found Data Services created a template table B without using CHAR for VARCHAR2

desc table A;

Name               Null     Type               

------------------ -------- -------------------

ROW_ID             NOT NULL VARCHAR2(15 CHAR)  

CREATED            NOT NULL DATE               

CREATED_BY         NOT NULL VARCHAR2(15 CHAR)  

LAST_UPD           NOT NULL DATE               

LAST_UPD_BY        NOT NULL VARCHAR2(15 CHAR)  

MODIFICATION_NUM   NOT NULL NUMBER(10)         

CONFLICT_ID        NOT NULL VARCHAR2(15 CHAR)

PROCESSING_LOG              VARCHAR2(1000 CHAR)

desc table B;

Name               Null Type          

------------------ ---- --------------

ROW_ID                  VARCHAR2(15)  

CREATED                 DATE          

CREATED_BY              VARCHAR2(15)  

LAST_UPD                DATE          

LAST_UPD_BY             VARCHAR2(15)  

MODIFICATION_NUM        NUMBER(10)    

CONFLICT_ID             VARCHAR2(15) 

PROCESSING_LOG          VARCHAR2(1000)

I think the error is due to Data Services trying to write the 1000 characters (1001 byte) to the template table of 1000byte.

I can't find any settings in Data Services on controlling the behaviour.  Is it a bug?