ta_macd(close,12,26,9) over (partition by instrument order by date),
m_ta_macd(close)
我想在我表达式中去用这个,比如我想看的是macd中的hist小于0 返回1,大于0则返回0,我这么写的,IF(m_ta_macd(close) < 0,1,0) AS market_risk_indicator,但是会报错ConversionException: Conversion Error: Unimplemented type for cast (INTEGER -> DOUBLE[]),我看数据结构返回的是个list我不清楚怎么样才能拿到我想要的hist的值