ta模块 select查询为什么会出错？
数据结构是这样 select * from kline
查询就会报错
select *,bBands(close, 5, 2, 2, 0) as `high`mid`low from kline
错误信息：
The calculated column was not initialized or an exception was raised.
以下案例不会出错 请问是为什么？
close = 7.2 6.97 7.08 6.74 6.49 5.9 6.26 5.9 5.35 5.63 3.81 3.935 4.04 3.74 3.7 3.33 3.64 3.31 2.69 2.72 date = (2020.03.02 + 0..4 join 7..11).take(20) symbol = take(`F,10) join take(`GPRO,10) t = table(symbol, date, close) select *, bBands(close, 5, 2, 2, 2) as `high`mid`low from t context by symbol
最佳答案 2021-12-24 10:20
主要问题你的上轨和下轨命名与表中的最高价，最低价字段重名了，如下就可以了：
select *,bBands(close, 5, 2, 2, 0) as `bBand_high`mid`bBand_low from kline
