marketdata.py 文件源码

def _gen_sa_table(sectype, metadata=None):
    """Generate SQLAlchemy Table object by sectype.
    """
    if metadata is None:
        metadata = MetaData()
    table = Table(
        sectype, metadata,
        Column('Symbol', String(20), primary_key=True),
        Column('DataType', String(20), primary_key=True),
        Column('BarSize', String(10), primary_key=True),
        Column('TickerTime', DateTime(), primary_key=True),
        Column('opening', Float(10, 2)),
        Column('high', Float(10, 2)),
        Column('low', Float(10, 2)),
        Column('closing', Float(10, 2)),
        Column('volume', mysqlINTEGER(unsigned=True)),
        Column('barcount', mysqlINTEGER(unsigned=True)),
        Column('average', Float(10, 2))
    )
    return table