One row per price seen: list, promotional and regional prices are separate rows, and channels that disagree sit side by side. Nothing is averaged or overwritten.
BigQuery is Google Cloud's serverless data warehouse and analytics platform.[1] It charges separately for compute (queries, on demand or through reserved slots) and for stored data, and it has a free usage tier.[1] On-demand queries are priced per TiB of data processed, with the first TiB each month free, while the Standard, Enterprise and Enterprise Plus editions are priced per slot hour, with lower rates on one- or three-year commitments.[1] The prices recorded here are the rates for the Iowa (us-central1) region; other regions are priced differently.[1] The prices recorded here are the rates for the Iowa (us-central1) region; other regions are priced differently.[1]