AWS Oracle DMS show full row each time - amazon-web-services

Question

I have an Oracle RDS instance configured with DMS with an S3 target.
After full load I ongoing replication, when I update a row with a new value, the DMS file that is created only shows those columns that were updated, but I want the whole row in its current state in the database.
Example:
| client_id | client_name | age |
| :---: | :---: | :----: |
| 1 | John Smith| 46|
| 2 | Jane Doe | 25 |
I then update Johns age to be 47, I would expect the DMS to look like this:
| Op | DMS_TIMESTAMP | client_id | client_name | age |
| :---: | :----: | :---: | :---: | :---: |
| u | 2022-01-01 12:00:00 | 1 | John Smith | 47 |
However the file I receive looks like this:
| Op | DMS_TIMESTAMP | client_id | client_name | age |
| :---: | :----: | :---: | :---: | :---: |
| u | 2022-01-01 12:00:00 | 1 | null | 47 |
According to the docs the DMS row should represent the current state of the row but all of my columns that are not a primary key seem to be missing, despite the row having correct values in the database. Am I missing a configuration?

Answer 1

I was missing a part of the documentation that explains that if you want the values of all the columns of a row, you need to apply the following to the table:
alter table table_name ADD SUPPLEMENTAL LOG DATA (all) columns';
As I needed to apply this for all the tables in a schema, I created this loop to apply it.
BEGIN
FOR I IN (
SELECT
table_name,
owner
FROM
ALL_TABLES
WHERE
owner = 'SCHEMA_OWNER'
) LOOP
-- Print table name
BEGIN
DBMS_OUTPUT.PUT_LINE('Attempting to alter ' || I.table_name || ' at ' || current_timestamp);
EXECUTE IMMEDIATE 'alter table SCHEMA_OWNER.' || I.table_name || ' ADD SUPPLEMENTAL LOG DATA (all) columns';
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE(I.table_name || ' alteration failed at ' || current_timestamp);
END;
END LOOP;
END;