Hi all: We all know that the conditions for chaining are 9, like this: [image: 内嵌图片 1] However, I have a question about 2, 3, 8 in the figure above. As far as I know, the operator cannot be null, and If the partitioner of the edge is forward, then their parallelism must be the same. Maybe I'm completely missing something...
Waiting for your reply. Best regard.
