Please post your code and results. Lag will be null for the first record. Also, what data type you are using? Are you using cast? On 21 Jul 2016 14:28, "Divya Gehlot" <[email protected]> wrote:
> I have a dataset of time as shown below : > Time1 > 07:30:23 > 07:34:34 > 07:38:23 > 07:39:12 > 07:45:20 > > I need to find the diff between two consecutive rows > I googled and found the *lag *function in *spark *helps in finding it . > but its giving me *null *in the result set. > > Would really appreciate the help. > > > Thanks, > Divya > >
