huaxingao commented on a change in pull request #29695:
URL: https://github.com/apache/spark/pull/29695#discussion_r493151791
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File path: sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala
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@@ -232,6 +232,17 @@ abstract class BaseRelation {
* @since 1.6.0
*/
def unhandledFilters(filters: Array[Filter]): Array[Filter] = filters
+
+ /**
+ * Returns the list of [[Aggregate]]s that this datasource may not be able
to handle.
+ * These returned [[Aggregate]]s will be evaluated by Spark SQL after data
is output by a scan.
+ * By default, this function will return all aggregates, as it is always
safe to
+ * double evaluate a [[Aggregate]].
+ *
+ * @since 3.1.0
+ */
+ def unhandledAggregates(aggregates: Array[AggregateFunc]):
Array[AggregateFunc] =
+ aggregates
Review comment:
This is not used. Will remove
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