yanghua commented on a change in pull request #6426: [FLINK-9958][DataSet] Fix
potential NPE for delta iteration of DataSet
URL: https://github.com/apache/flink/pull/6426#discussion_r205757315
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File path:
yanghua commented on a change in pull request #6426: [FLINK-9958][DataSet] Fix
potential NPE for delta iteration of DataSet
URL: https://github.com/apache/flink/pull/6426#discussion_r205757372
##
File path:
yanghua commented on a change in pull request #6426: [FLINK-9958][DataSet] Fix
potential NPE for delta iteration of DataSet
URL: https://github.com/apache/flink/pull/6426#discussion_r205757372
##
File path:
yanghua commented on a change in pull request #6426: [FLINK-9958][DataSet] Fix
potential NPE for delta iteration of DataSet
URL: https://github.com/apache/flink/pull/6426#discussion_r205757315
##
File path: