Parquet table definitions from firehose-parquet
| Column | Type | Nullable |
|---|---|---|
| block_num | UInt64 | required |
| block_id | Utf8 | required |
| parent_num | UInt64 | required |
| parent_id | Utf8 | required |
| lib_num | UInt64 | required |
| timestamp | Int64 | required |
| number | UInt64 | required |
| hash | Bytes | required |
| parent_hash | Bytes | required |
| timestamp | Int64 | required |
| gas_used | UInt64 | required |
| gas_limit | UInt64 | required |
| base_fee_per_gas | Utf8 | nullable |
| coinbase | Bytes | required |
| size | UInt64 | required |
| nonce | UInt64 | required |
| state_root | Bytes | required |
| transactions_root | Bytes | required |
| receipt_root | Bytes | required |
| difficulty | Utf8 | nullable |
| mix_hash | Bytes | required |
| extra_data | Bytes | required |
| num_transactions | UInt32 | required |
| detail_level | Int32 | required |