如下代码，记录中buy是4.52，但decimal32(buy, 2)转换后保存到文本文件中后变成4.51了
t=table(100:1, `id`buy, [INT,DOUBLE]);insert into t values (2,4.52);saveText(select buy,decimal32(buy, 3) as buy3, decimal32(buy, 2) as buy2 from t,"buy.csv");
或者直接执行decimal64(4.52, 2) ，也得到 4.51。请问是怎么回事？
这可能是由于浮点数误差造成的，想避免浮点到decimal的转化误差，可以将数据转成 STRING。
t=table(100:1, `id`buy, [INT,DOUBLE]); insert into t values (2,4.52); re=select buy,buy.format("0.00") as buy2 from t saveText(re,"buy.csv");
