RE: Catching Source Member Changes

I'm going to assume you didn't mean the obvious ADDPFTRG on a source physical file.
You wanted to know a member was changed and not each row which was changed.
And any source PF from any method: RDi, SEU, EDTF, etc
And you wanted a trigger, not something like

SELECT system_table_member, system_table_schema, system_table_name,
source_type, last_source_update_timestamp
FROM QSYS2.SYSPARTITIONSTAT
where source_type is not null
fetch first 5 rows only
;
-- order by last_source_update_timestamp desc

Rob Berendt