Teradata Database supports two methods of bulk loading data into temporal tables:
FastLoad (and applications that support the FastLoad protocol), can perform bulk loads
directly into empty temporal tables, if the tables are not column partitioned.
Alternatively, Multiload can be used to load data into nontemporal staging tables,
followed by the use of INSERT ... SELECT statements to load the data from the staging
tables into temporal tables and ALTER TABLE to convert the tables into valid-time