DSXchange

I'm havuing a column PERS_ID.

I need to get the current and previous values on each run.

My stage variables:

PrevPersId : CurrPersId
CurrPersId : InputLnk.PERS_ID
(Initial Value=0)

I'm using two nodes configuration file. I have used hash partition. Data are spliting in two nodes.
Input
111
111
111
222
333
444
555
666
666

Actual Output:
Previous Current
0 222
222 333
333 444
444 555
0 111
111 111
111 111
111 666
666 666

Expected output
Previous Current
0 111
111 111
111 111
111 222
222 333
333 444
444 555
555 666
666 666


Plz help me in this issue.... Thanks in advance

What is happening over here is that records
0 222
222 333
333 444
444 555
have gone to one node and
0 111
111 111
111 111
111 666
666 666 have gone to another node. Effectively 222 becomes the first record on node 1 and 111 is the first record on node 2. You will have to run the transformer in sequential mode to get the required output.