Incrementally refresh a fact table with the content of a new one that is integrated into the first.
incremental_refresh_fact(ft, ft_new, existing)# S3 method for fact_table
incremental_refresh_fact(ft, ft_new, existing)
A fact_table object.
A fact_table object, possibly with new data.
A string, operation to be performed with records whose keys match.
A fact_table object.
If there are records whose keys match the new ones, we can ignore, replace or group them.