I have a similar use case: My records have a column containing the source
system they are coming from. I would need to be able to select which source
is my "master source". In addition it would be helpful if I could weight or
order the different source systems (values in the column). This way I could
create the following rules:
If matches from source A, source B, source C -> record from source A master
If matches from source B, source C -> record from source B master