计算数据帧的每一行与另一个数据帧中的所有其他行之间的欧几里德距离

I need to generate a dataframe with minimum euclidean distance between each row of a dataframe and all other rows of another dataframe.Both my dataframes are large (approx 40,000 rows).This is what I could work out till now.I need to generate a dataframe with minimum euc