ON CONFLICT DO UPDATE

Hi,

Sorry for asking question again.

I would like to know if there's a workaround for this. I need to insert
Student Balance data into a table. The source data have duplicate values
for student_id, school_id and campus_name. My StudentBalance model in Djano
have Class Meta of:

class Meta:
unique_together = (
"school",
"student_id",
"campus_name"
)

Searched online and found this magical tool called ON CONFLICT DO UPDATE. I
played around with it, made it work but there's a problem. The balance data
is not being updated which is because it's not in class Meta with
unique_together. I would like to know if there's a way to update the data
in Student Balance column without adding it to the class Meta?

Thanks,
J