one_to_one

getml.data.relationship.one_to_one = 'one-to-one'

Used for one-to-one relationships.

If two tables are guaranteed to be in a one-to-one relationship, then feature learning is not necessary as they can simply be joined. If a relationship is marked one-to-one, but the assumption is violated, the pipeline will raise an exception. If you are unsure whether you want to use many_to_one or one_to_one, user many_to_one.