| -- Registers the events table, picking the dataset based on BENCH_SUBGROUP: | |
| -- | |
| -- BENCH_SUBGROUP=wide → 1024-col synthetic dataset (the actual benchmark) | |
| -- BENCH_SUBGROUP=narrow → 8-col baseline (companion only — meaningful | |
| -- only when compared to the wide numbers) | |
| CREATE EXTERNAL TABLE events STORED AS PARQUET LOCATION 'data/wide_schema/${BENCH_SUBGROUP:-wide}/'; |