Vantage provides a special version of the ALTER TABLE statement for modifying the row partitioning of a table (or WHERE clause of a join index definition) defined with an updatable DATE, updatable CURRENT_DATE, or updatable CURRENT_TIMESTAMP built-in function called ALTER TABLE TO CURRENT (see ALTER TABLE TO CURRENT).
ALTER TABLE TO CURRENT is designed specifically to reconcile the values of these functions when they are specified in a partitioning expression of a table or join index or in the WHERE clause of a join index.
The rules for ALTER TABLE TO CURRENT requests are identical for row partitioning and column partitioning; however, there can be a negative performance impact if the table or join index has column partitioning in addition to row partitioning because it is often costly to move a row from one row partition to another.
See the table in Comparing ALTER TABLE TO CURRENT and ALTER TABLE … REVALIDATE for a comparison of the capabilities of ALTER TABLE … REVALIDATE PRIMARY INDEX requests with the ALTER TABLE TO CURRENT statement.