What if identifier_field got deleted or updated in iceberg table?

[dvnageshpatil]

Question

if suppose i have schema like this
schema = Schema(
NestedField(field_id=1, name="name", field_type=StringType(),required=True),
NestedField(field_id=2, name="phone", field_type=IntegerType(),required=False),
NestedField(field_id=3, name="pincode", field_type=IntegerType(),required=True),
identifier_field_ids=[3]
)
if "pincode" column deleted /updated then how we should modify the "identifier_field_ids" in table schema?