Options that change functionality of a sink exporting data
to BigQuery.
Output only. True if new timestamp column based partitioning
is in use, false if legacy ingestion-time partitioning is in
use. All new sinks will have this field set true and will use
timestamp column based partitioning. If
use_partitioned_tables is false, this value has no meaning
and will be false. Legacy sinks using partitioned tables will
have this field set to false.
