{"id":"broadcast-join-loads-small-side-at-construction","text":"`BroadcastHashJoin` receives the small dataset at construction time and builds a hash table; the large dataset is streamed through `.join()`, reflecting the asymmetric API where the small side must be available upfront","truth_value":"IN","source":"entries/2026/05/29/map-side-join-test_map_side_joins.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"broadcast-join-loads-small-side-at-construction","truth_value":"IN","reason":"premise"}]}}