Bigquery, Execution Plan, Query Optimization.
aggregation on such dataset. At stage 2, worker(s) aggregate(s) data returned from stage 1 and write it to the final shuffle layer for users ▶️ 1️⃣ If we follow the app roach 1, which is to throw everything into the shuffle layer without any re-partitioning, one worker (at stage 2) will have to