{"id":"partitioned-hash-join-partitions-both-sides","text":"`PartitionedHashJoin.join()` calls `partition_dataset()` on both inputs before joining, meaning partitions are computed at join time rather than assumed from storage layout","truth_value":"IN","source":"entries/2026/05/29/topic-ddia-ch10-reduce-side-joins.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"partitioned-hash-join-partitions-both-sides","truth_value":"IN","reason":"premise"}]}}