It isn't possible to guarantee sequential keys because tasks run in parallel. You can write a UDF to assign a unique id or sequential ids within a task.
Alan. On Tue, Nov 21, 2017 at 3:53 AM, kishore kumar <[email protected]> wrote: > Hi, > > Could some one suggest how to create surrogate keys sequentially in hive ? > > -- > Thanks, > Kishore. >
