Update README.md

README.md

@@ -54,15 +54,6 @@ comparison_with_prior_golds/
   summary_statistics.parquet               aggregate numbers
 ```
 
-Sample identifiers match the original benchmarks: `question_id` = the official BIRD dev
-`question_id` / the Spider dev row index; `instance_id` = the official Spider 2.0-Lite/Snow
-instance id. Every row carries `db_id`; the schema list of a sample is
-`schemas/<set>_schemas.json[db_id]`, and `n_schema_columns` = its length. Gold columns and
-schema lists share one granularity per set: plain `table.column` for Spider/BIRD, grouped
-schema nodes for Spider 2.0 (structurally identical shard tables merged into one `FAMILY_*`
-node — the same grouped space the system ranks over; the widest Snow database has 17,883
-grouped columns). Spider schema lists exclude SQLite's internal `sqlite_sequence` bookkeeping
-table (present in the official `tables.json` for `world_1` but never referenced by any query).
 
 ## How the gold was built