What write mechanism does BigQuery connector use? (Controlling BigQuery costs)

[techieshark]

Hi,

Does anyone know what method the BigQuery destination connector uses to write and whether it is optimized to reduce costs?

See ingest pricing: https://cloud.google.com/bigquery/pricing#data_ingestion_pricing

I ask because while trying Airbyte I saw some spikes in costs and I'm checking to see if anything can be done to reduce those: