Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/23135#discussion_r236097033
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
---
@@ -575,6 +575,19 @@ case class Range(
}
}
+/**
+ * This is a Group by operator with the aggregate functions and
projections.
+ *
+ * @param groupingExpressions expressions for grouping keys
+ * @param aggregateExpressions expressions for a project list, which could
contain
+ *
[[org.apache.spark.sql.catalyst.expressions.aggregate.AggregateFunction]]s.
+ *
+ * Note: Currently, aggregateExpressions correspond to both
[[AggregateExpression]] and the output
--- End diff --
Removed it from the description.
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