10110346 commented on a change in pull request #23304: [SPARK-26353][SQL]Add
typed aggregate functions: max&&min
URL: https://github.com/apache/spark/pull/23304#discussion_r247726185
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/expressions/javalang/typed.java
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@@ -74,4 +71,40 @@
public static <T> TypedColumn<T, Long> sumLong(MapFunction<T, Long> f) {
return new TypedSumLong<T>(f).toColumnJava();
}
+
+ /**
+ * Min aggregate function for floating point (double) type.
+ *
+ * @since 3.0.0
+ */
+ public static <T> TypedColumn<T, Double> min(MapFunction<T, Double> f) {
+ return new JavaTypedMinDouble<T>(f).toColumn();
+ }
+
+ /**
+ * Min aggregate function for integral (long, i.e. 64 bit integer) type.
+ *
+ * @since 3.0.0
+ */
+ public static <T> TypedColumn<T, Long> minLong(MapFunction<T, Long> f) {
+ return new JavaTypedMinLong<T>(f).toColumn();
+ }
+
+ /**
+ * Min aggregate function for floating point (double) type.
Review comment:
Ok,thanks
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