simonepri commented on pull request #12421:
URL: https://github.com/apache/beam/pull/12421#issuecomment-666763106
> In practice, having no elements at all is so uncommon, it's not reasonable
to include that in basic utility transforms, since they never apply, and no
data = no compute is a
simonepri commented on pull request #12421:
URL: https://github.com/apache/beam/pull/12421#issuecomment-666285522
R: @youngoli, @lostluck
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