表名：cn_future_md_main_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	A2207	A	5850	5853	5871	5463	5813	5895	6366	5424	26588	19385	1.12702e+09	5897
2022-01-04	AG2207	AG	4862	4786	4872	4777	4808	4858	5343	4372	12727	3989	2.87688e+08	4892
2022-01-04	AL2208	AL	20555	20270	20555	20160	20405	20445	22080	18805	4883	16	1.6326e+06	20460
2022-01-04	AP2210	AP	7604	7383	7622	7377	7504	7599	8055	7143	39621	7407	5.55821e+08	7628
2022-01-04	AU2208	AU	374.48	374.46	375.24	374.18	374.64	375.94	398.48	353.38	3170	503	1.88452e+08	377.46