Statistics Collection Recommendations – Teradata Database 14.10 - comment by carrie

Socola,
 
Starting in  14.10, statistics can be collected on BEGIN/END(valid_time/transaction_time) since we support expression statistics. However, note that we don’t allow collection on the PERIOD type such as valid_time/transaction_time since they are not the basic type. When we extract BEGIN/END portion of the PERIOD column, it results in a basic DATE or TIMESTAMP type which is the reason we can collect stats on them.
 
Thanks, -Carrie