Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/11517#discussion_r58159371
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/BufferedRowIterator.java
---
@@ -61,6 +63,14 @@ public long durationMs() {
public abstract void init(Iterator<InternalRow> iters[]);
/**
+ * Initializes from array of iterators of InternalRow.
+ */
+ public void init(int index, Iterator<InternalRow> iters[]) {
+ partitionIndex = index;
--- End diff --
One problem is, as we consume two RDDs with the codes like:
rdds.head.zipPartitions(rdds(1)) { (leftIter, rightIter) =>
...
}
We can't obtain and pass partition index as 1 RDD case.
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