Github user ChengXiangLi commented on a diff in the pull request:
https://github.com/apache/flink/pull/1540#discussion_r50505552
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/distributions/DataDistribution.java
---
@@ -47,6 +49,12 @@
*/
Object[] getBucketBoundary(int bucketNum, int totalNumBuckets);
+ public int[] getBoundaryKeyPositions();
--- End diff --
Why add these interfaces? the partition key position is defined by user
through `partitionByRange` parameter, and the partition key type information is
extracted by flink itself, you should not depends on `DataDistribution` to have
these information.
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