表名：cn_future_md_all_1d

name	pandas_type	numpy_type	字段说明
trade_date	datetime	datetime64[ns]	交易日期
code	unicode	object	合约名称/证券代码
symbol	unicode	object	交易品种
open	float64	float64	开盘价
close	float64	float64	收盘价
high	float64	float64	最高价
low	float64	float64	最低价
settlement	float64	float64	结算价
pre_settlement	float64	float64	昨日结算价
up_stop	float64	float64	涨停价
down_stop	float64	float64	跌停价
open_interest	float64	float64	持仓量
volume	float64	float64	成交量
amount	float64	float64	成交额
pre_close	float64	float64	昨日收盘价

示例数据

trade_date	code	symbol	open	close	high	low	settlement	pre_settlement	up_stop	down_stop	open_interest	volume	amount	pre_close
2022-01-04	A2201	A	5950	5930	6000	5851	5929	5969	6446	5492	2241	896	5.31273e+07	5935
2022-01-04	A2203	A	5865	5847	5868	5652	5798	5870	6339	5401	172689	187623	1.08787e+10	5878
2022-01-04	A2205	A	5900	5877	5900	5760	5837	5912	6384	5440	38725	42488	2.48007e+09	5917
2022-01-04	A2207	A	5850	5853	5871	5463	5813	5895	6366	5424	26588	19385	1.12702e+09	5897
2022-01-04	A2209	A	5788	5777	5793	5683	5747	5838	6305	5371	826	368	2.115e+07	5849