Function datafusion::physical_plan::hash_utils::check_join_is_valid

pub fn check_join_is_valid(
    left: &Schema, 
    right: &Schema, 
    on: JoinOnRef<'_>
) -> Result<()>

Checks whether the schemas “left” and “right” and columns “on” represent a valid join. They are valid whenever their columns’ intersection equals the set on