zhengruifeng commented on code in PR #41687:
URL: https://github.com/apache/spark/pull/41687#discussion_r1251100255
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sql/core/src/main/scala/org/apache/spark/sql/functions.scala:
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@@ -7715,9 +7688,30 @@ object functions {
* @since 3.2.0
*/
@scala.annotation.varargs
- def call_udf(udfName: String, cols: Column*): Column = withExpr {
- UnresolvedFunction(udfName, cols.map(_.expr), isDistinct = false)
- }
+ @deprecated("Use call_function")
+ def call_udf(udfName: String, cols: Column*): Column =
+ call_function(udfName, cols: _*)
+
+ /**
+ * Call a builtin or temp function.
+ *
+ * @param funcName function name
+ * @param cols the expression parameters of function
+ * @since 3.5.0
+ */
+ def call_function(funcName: String, cols: Column*): Column =
+ withExpr { UnresolvedFunction(funcName, cols.map(_.expr), false) }
+
+ /**
+ * Call a builtin or temp function.
+ *
+ * @param funcName function name
+ * @param cols the expression parameters of function
+ * @param isDistinct the distinct for aggregate functions
+ * @since 3.5.0
+ */
+ def call_function(funcName: String, isDistinct: Boolean, cols: Column*):
Column =
Review Comment:
1, since `isDistinct` doesn't works for all functions, what is the behavior
if user invoke unsupported functions like `call_function("abs", true)` ?
2, I guess we can simply make it private?
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