I did a SHARE presentation once that included comparing Unix & CMS Pi pelines. I will see if I can find it.
The primary difference is not that CMS Pipes are two-dimensional, but tha t CMS Pipes lets you split a stream, perform different manipulations on the separate sub-pipes, and th en join the streams and have the records come out in the original order. (Provided, of course, th at your manipulations do not delay the record.) Unix pipes do not necessary pass a record at a time, and I know of no joi n stage that will put the streams back together in the original order. You could, of course, add a record number to each record, and then sort on the record number at the end, but that will perf orm very poorly on large files. Alan Ackerman Alan (dot) Ackerman (at) Bank of America (dot) com
