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 while using
[BigQuerySource][google.cloud.retail.v2.BigQuerySource].
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.
This feature is only available for users who have Retail Search enabled.
Contact Retail Support (retail-search-support@google.com) if you are
interested in using Retail Search.
Incremental
Inserts new products or updates existing products.