Db2

How can I store a UTC Timestamp automatically in a column during a LOAD?

So far I tried this (Db2 10.5. and 11.1)
- Defining the column as NOT NULL WITH DEFAULT CURRENT TIMESTAMP - CURRENT TIMEZONE --> gives an SQL0104 Syntax error
- Defining the column as GENERATED ALWAYS AS ( CURRENT TIMESTAMP - CURRENT TIMEZONE) --> does not work as special registers are not allowed in a GENERATED clause
- Defining the column as GENERATED ALWAYS AS ( TIMESTAMP(GET_UNIQUE)) --> does not work as non-deterministic functions are not allowed in a GENERATED clause
- A BEFORE Trigger is not an option as LOAD does not fire triggers

Anyone any idea?

TIA
DB2Joe