srowen commented on a change in pull request #21215: [SPARK-24148][SQL]
Overloading array function to support typed empty arrays
URL: https://github.com/apache/spark/pull/21215#discussion_r274992340
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File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -1022,6 +1022,16 @@ object functions {
array((colName +: colNames).map(col) : _*)
}
+ /**
+ * Creates a new column with empty arrays of the given type.
+ *
+ * @group normal_funcs
+ * @since 2.4.0
Review comment:
(This can't be since 2.4.0)
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