Github user icexelloss commented on a diff in the pull request:
https://github.com/apache/spark/pull/19872#discussion_r161856360
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/PythonUDF.scala
---
@@ -15,12 +15,31 @@
* limitations under the License.
*/
-package org.apache.spark.sql.execution.python
+package org.apache.spark.sql.catalyst.expressions
-import org.apache.spark.api.python.PythonFunction
-import org.apache.spark.sql.catalyst.expressions.{Expression,
NonSQLExpression, Unevaluable, UserDefinedExpression}
+import org.apache.spark.api.python.{PythonEvalType, PythonFunction}
+import org.apache.spark.sql.catalyst.util.toPrettySQL
import org.apache.spark.sql.types.DataType
+/**
+ * Helper functions for PythonUDF
--- End diff --
I changed to `[[PythonUDF]]`. I think Scala doc should use `[[]]`
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