Github user nongli commented on a diff in the pull request:
https://github.com/apache/spark/pull/10989#discussion_r51477107
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/BufferedRowIterator.java
---
@@ -54,13 +54,27 @@ public void setInput(Iterator<InternalRow> iter) {
}
/**
+ * Returns whether `processNext()` should stop processing next row from
`input` or not.
+ */
+ protected boolean shouldStop() {
--- End diff --
@rxin this seems like it could be used to support limit.
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