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From aljoscha <...@git.apache.org>
Subject [GitHub] flink issue #3438: [FLINK-4460] Allow ProcessFunction on non-keyed streams
Date Sat, 04 Mar 2017 07:14:51 GMT
Github user aljoscha commented on the issue:

    @rmetzger Yes, it's unfortunate that in our model not all elements always have a timestamp.
The other alternative is throwing an exception when trying to access a non-existing timestamp.

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