OverflowerError:在int64中溢出，在pandas中添加

Question

我的数据框中有两个日期字段，我试图减去它们以获得时间间隔

df_t['trans_delivery_date'] = pd.to_datetime(df_t['trans_delivery_date'])
df_t['trans_initiated_date'] = pd.to_datetime(df_t['trans_initiated_date'])
df_t['days'] = df_t['trans_delivery_date'] - df_t['trans_initiated_date']

我运行了上面的代码，但得到了

a OverflowError: Overflow in int64 addition

但我可以像这样跑

t = df_t['trans_delivery_date'][0:100] - df_t['trans_initiated_date'][0:100]

有人能帮我吗