| { |
| "partition_columns": [ |
| { |
| "name": "trade_date", |
| "type": "string", |
| "source": "Hive path" |
| }, |
| { |
| "name": "code_prefix", |
| "type": "string", |
| "source": "Hive path, ticker[:2]" |
| } |
| ], |
| "columns": [ |
| { |
| "name": "ticker", |
| "type": "string", |
| "description": "Six-digit ticker code, preserving leading zeroes." |
| }, |
| { |
| "name": "time_s", |
| "type": "int32", |
| "description": "Seconds since midnight." |
| }, |
| { |
| "name": "tran_id", |
| "type": "int64", |
| "description": "Transaction id." |
| }, |
| { |
| "name": "price_x10000", |
| "type": "int64", |
| "description": "Trade price multiplied by 10000." |
| }, |
| { |
| "name": "volume", |
| "type": "int64", |
| "description": "Trade volume." |
| }, |
| { |
| "name": "sale_order_volume", |
| "type": "int64", |
| "description": "Remaining sell order volume." |
| }, |
| { |
| "name": "buy_order_volume", |
| "type": "int64", |
| "description": "Remaining buy order volume." |
| }, |
| { |
| "name": "side", |
| "type": "string", |
| "description": "Trade side from source Type column, usually B or S." |
| }, |
| { |
| "name": "sale_order_id", |
| "type": "int64", |
| "description": "Sell order id." |
| }, |
| { |
| "name": "sale_order_price_x10000", |
| "type": "int64", |
| "description": "Sell order price multiplied by 10000." |
| }, |
| { |
| "name": "buy_order_id", |
| "type": "int64", |
| "description": "Buy order id." |
| }, |
| { |
| "name": "buy_order_price_x10000", |
| "type": "int64", |
| "description": "Buy order price multiplied by 10000." |
| } |
| ], |
| "sort_order": [ |
| "ticker", |
| "time_s", |
| "tran_id" |
| ], |
| "compression": "zstd", |
| "row_group_size_rows": 2000000, |
| "row_groups_per_file": 15, |
| "target_file_size": "300MB-800MB when row distribution allows it", |
| "generated_at": "2026-08-07T12:53:27+00:00" |
| } |
