Calculates diff and replaces the entire product dataset. Existing
products may be deleted if they are not present in the source location.
Can only be set while using
[BigQuerySource][google.cloud.retail.v2.BigQuerySource]. And the BigQuery
dataset must be created in the data location "us (multiple regions in
United States)", otherwise a PERMISSION_DENIED error is thrown.
Add the IAM permission "BigQuery Data Viewer" for
cloud-retail-customer-data-access@system.gserviceaccount.com before
using this feature otherwise an error is thrown.
Incremental
Inserts new products or updates existing products.