Hi Robert, Thanks for your response.
Regards, Shen On Wed, Jul 6, 2016 at 4:02 PM, Robert Bradshaw <[email protected] > wrote: > It is an error at pipeline construction time to use CoGroupByKey with > differing windowing strategies. If you want to do such joins, you may > want to look into using side inputs which are more flexible. > > On Wed, Jul 6, 2016 at 8:01 AM, Shen Li <[email protected]> wrote: > > Hi, > > > > If the PCollections in a KeyedPCollectionTuple have different window > > strategies (WindowFn, Trigger, etc.), how does a CoGroupByKey work? When > > will it be triggered? How does it determine which kvs from each > PCollection > > to co-group? > > > > Thanks, > > > > Shen >
