type

The type of partitioning transformation for this field. The available options are:

• IDENTITY - Partitions data on a given field by its exact values.

• YEAR - Partitions data on a timestamp field using year granularity.

• MONTH - Partitions data on a timestamp field using month granularity.

• DAY - Partitions data on a timestamp field using day granularity.

• HOUR - Partitions data on a timestamp field using hour granularity.