Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1255#issuecomment-162608149
Hi @ChengXiangLi, I tried the PR locally on my machine and it was working
quite well.
I found a few minor issues:
- You don't need to set keys and sort order for `FORWARD` shipping
strategies in `RangePartitionRewriter` line 118
- You set the `DataExchangeMode` twice in line 163 and 166 or
`RangePartitionRewriter`
- We need to set costs and properties for the PlanNodes that we create.
Otherwise `ExecutionEnvironment.getExecutionPlan()` fails with a NPE. Costs can
be 0, IMO but we should set the correct physical properties because these are
visualized and might confuse users.
- The injected plan node should have good names that indicate that they
belong to the range partitioner. I suggest:
- `sipPlanNode`: "RangePartition: LocalSample"
- `sicPlanNode`: "RangePartition: GlobalSample"
- `rbPlanNode`: "RangePartition: Histogram"
- `ariPlanNode`: "RangePartition: Partition"
- `prPlanNode`: "RangePartition: Partition" (IMO its fine to have the
same name here. Too much detail such as assign id and unwrap might just confuse)
What do you think?
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