create table t_m1(
id bigint auto_increment not null,
InstrumentID varchar(50) not null default '',
TradingDay date not null default '1900-01-01',
UpdateTime time not null default '00:00:00',
LastPrice decimal(10, 2) not null default 0,
PreClosePrice decimal(10, 2) not null default 0,
OpenPrice decimal(10, 2) not null default 0,
HighestPrice decimal(10, 2) not null default 0,
LowestPrice decimal(10, 2) not null default 0,
Volume int not null default 0,
LowerLimitPrice decimal(10, 2) not null default 0,
primary key(id)
);