[SPARK-5445][SQL] Consolidate Java and Scala DSL static methods.

Turns out Scala does generate static methods for ones defined in a companion 
object. Finally no need to separate api.java.dsl and api.scala.dsl.

Author: Reynold Xin <[email protected]>

Closes #4276 from rxin/dsl and squashes the following commits:

30aa611 [Reynold Xin] Add all files.
1a9d215 [Reynold Xin] [SPARK-5445][SQL] Consolidate Java and Scala DSL static 
methods.


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/71563223
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/71563223
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/71563223

Branch: refs/heads/master
Commit: 715632232d0e6c97e304686608385d3b54a4bcf6
Parents: f9e5694
Author: Reynold Xin <[email protected]>
Authored: Thu Jan 29 15:13:09 2015 -0800
Committer: Reynold Xin <[email protected]>
Committed: Thu Jan 29 15:13:09 2015 -0800

----------------------------------------------------------------------
 .../apache/spark/examples/sql/RDDRelation.scala |   2 +-
 .../scala/org/apache/spark/ml/Transformer.scala |   2 +-
 .../ml/classification/LogisticRegression.scala  |   2 +-
 .../spark/ml/feature/StandardScaler.scala       |   2 +-
 .../apache/spark/ml/recommendation/ALS.scala    |   2 +-
 python/pyspark/sql.py                           |   4 +-
 .../scala/org/apache/spark/sql/Column.scala     |   5 +-
 .../scala/org/apache/spark/sql/DataFrame.scala  |   3 +-
 .../main/scala/org/apache/spark/sql/Dsl.scala   | 518 ++++++++++++++++++
 .../org/apache/spark/sql/api/java/dsl.java      |  92 ----
 .../spark/sql/api/scala/dsl/package.scala       | 523 -------------------
 .../org/apache/spark/sql/CachedTableSuite.scala |   2 +-
 .../spark/sql/ColumnExpressionSuite.scala       |   2 +-
 .../org/apache/spark/sql/DataFrameSuite.scala   |   2 +-
 .../scala/org/apache/spark/sql/JoinSuite.scala  |   2 +-
 .../org/apache/spark/sql/SQLQuerySuite.scala    |   2 +-
 .../scala/org/apache/spark/sql/TestData.scala   |   2 +-
 .../scala/org/apache/spark/sql/UDFSuite.scala   |   4 +-
 .../apache/spark/sql/UserDefinedTypeSuite.scala |   2 +-
 .../columnar/InMemoryColumnarQuerySuite.scala   |   2 +-
 .../spark/sql/execution/PlannerSuite.scala      |   2 +-
 .../org/apache/spark/sql/json/JsonSuite.scala   |   2 +-
 .../spark/sql/parquet/ParquetIOSuite.scala      |   2 +-
 .../sql/hive/execution/HiveQuerySuite.scala     |   2 +-
 .../sql/hive/execution/HiveTableScanSuite.scala |   2 +-
 25 files changed, 543 insertions(+), 642 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
----------------------------------------------------------------------
diff --git 
a/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala 
b/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
index e9f4788..82a0b63 100644
--- a/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
@@ -19,7 +19,7 @@ package org.apache.spark.examples.sql
 
 import org.apache.spark.{SparkConf, SparkContext}
 import org.apache.spark.sql.SQLContext
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 
 // One method for defining the schema of an RDD is to make a case class with 
the desired column
 // names and types.

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala
----------------------------------------------------------------------
diff --git a/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala 
b/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala
index 6eb7ea6..cd95c16 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala
@@ -23,7 +23,7 @@ import org.apache.spark.Logging
 import org.apache.spark.annotation.AlphaComponent
 import org.apache.spark.ml.param._
 import org.apache.spark.sql.DataFrame
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.types._
 
 /**

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
----------------------------------------------------------------------
diff --git 
a/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
 
b/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
index d82360d..18be35a 100644
--- 
a/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
+++ 
b/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
@@ -24,7 +24,7 @@ import 
org.apache.spark.mllib.classification.LogisticRegressionWithLBFGS
 import org.apache.spark.mllib.linalg.{BLAS, Vector, VectorUDT}
 import org.apache.spark.mllib.regression.LabeledPoint
 import org.apache.spark.sql._
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.types.{DoubleType, StructField, StructType}
 import org.apache.spark.storage.StorageLevel
 

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
----------------------------------------------------------------------
diff --git 
a/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala 
b/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
index 78a4856..01a4f5e 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
@@ -23,7 +23,7 @@ import org.apache.spark.ml.param._
 import org.apache.spark.mllib.feature
 import org.apache.spark.mllib.linalg.{Vector, VectorUDT}
 import org.apache.spark.sql._
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.types.{StructField, StructType}
 
 /**

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
----------------------------------------------------------------------
diff --git a/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala 
b/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
index 474d473..aaad548 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
@@ -30,7 +30,7 @@ import org.apache.spark.ml.{Estimator, Model}
 import org.apache.spark.ml.param._
 import org.apache.spark.rdd.RDD
 import org.apache.spark.sql.{Column, DataFrame}
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.types.{DoubleType, FloatType, IntegerType, 
StructField, StructType}
 import org.apache.spark.util.Utils
 import org.apache.spark.util.collection.{OpenHashMap, OpenHashSet, 
SortDataFormat, Sorter}

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/python/pyspark/sql.py
----------------------------------------------------------------------
diff --git a/python/pyspark/sql.py b/python/pyspark/sql.py
index fdd8034..e636f99 100644
--- a/python/pyspark/sql.py
+++ b/python/pyspark/sql.py
@@ -2342,7 +2342,7 @@ SCALA_METHOD_MAPPINGS = {
 
 def _create_column_from_literal(literal):
     sc = SparkContext._active_spark_context
-    return sc._jvm.org.apache.spark.sql.api.java.dsl.lit(literal)
+    return sc._jvm.org.apache.spark.sql.Dsl.lit(literal)
 
 
 def _create_column_from_name(name):
@@ -2515,7 +2515,7 @@ def _aggregate_func(name):
             jcol = col._jc
         else:
             jcol = _create_column_from_name(col)
-        jc = getattr(sc._jvm.org.apache.spark.sql.api.java.dsl, name)(jcol)
+        jc = getattr(sc._jvm.org.apache.spark.sql.Dsl, name)(jcol)
         return Column(jc)
     return staticmethod(_)
 

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
----------------------------------------------------------------------
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/Column.scala 
b/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
index 9be2a03..ca50fd6 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
@@ -19,7 +19,7 @@ package org.apache.spark.sql
 
 import scala.language.implicitConversions
 
-import org.apache.spark.sql.api.scala.dsl.lit
+import org.apache.spark.sql.Dsl.lit
 import org.apache.spark.sql.catalyst.analysis.{UnresolvedAttribute, Star}
 import org.apache.spark.sql.catalyst.expressions._
 import org.apache.spark.sql.catalyst.plans.logical.{Project, LogicalPlan}
@@ -28,8 +28,7 @@ import org.apache.spark.sql.types._
 
 object Column {
   /**
-   * Creates a [[Column]] based on the given column name.
-   * Same as [[api.scala.dsl.col]] and [[api.java.dsl.col]].
+   * Creates a [[Column]] based on the given column name. Same as [[Dsl.col]].
    */
   def apply(colName: String): Column = new Column(colName)
 

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
----------------------------------------------------------------------
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala 
b/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
index 050366a..94c13a5 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
@@ -51,8 +51,7 @@ import org.apache.spark.util.Utils
  * }}}
  *
  * Once created, it can be manipulated using the various 
domain-specific-language (DSL) functions
- * defined in: [[DataFrame]] (this class), [[Column]], [[api.scala.dsl]] for 
Scala DSL, and
- * [[api.java.dsl]] for Java DSL.
+ * defined in: [[DataFrame]] (this class), [[Column]], [[Dsl]] for the DSL.
  *
  * To select a column from the data frame, use the apply method:
  * {{{

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/main/scala/org/apache/spark/sql/Dsl.scala
----------------------------------------------------------------------
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/Dsl.scala 
b/sql/core/src/main/scala/org/apache/spark/sql/Dsl.scala
new file mode 100644
index 0000000..f47ff99
--- /dev/null
+++ b/sql/core/src/main/scala/org/apache/spark/sql/Dsl.scala
@@ -0,0 +1,518 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql
+
+import scala.language.implicitConversions
+import scala.reflect.runtime.universe.{TypeTag, typeTag}
+
+import org.apache.spark.sql.catalyst.ScalaReflection
+import org.apache.spark.sql.catalyst.expressions._
+import org.apache.spark.sql.types._
+
+
+/**
+ * Domain specific functions available for [[DataFrame]].
+ */
+object Dsl {
+
+  /** An implicit conversion that turns a Scala `Symbol` into a [[Column]]. */
+  implicit def symbolToColumn(s: Symbol): ColumnName = new ColumnName(s.name)
+
+  //  /**
+  //   * An implicit conversion that turns a RDD of product into a 
[[DataFrame]].
+  //   *
+  //   * This method requires an implicit SQLContext in scope. For example:
+  //   * {{{
+  //   *   implicit val sqlContext: SQLContext = ...
+  //   *   val rdd: RDD[(Int, String)] = ...
+  //   *   rdd.toDataFrame  // triggers the implicit here
+  //   * }}}
+  //   */
+  //  implicit def rddToDataFrame[A <: Product: TypeTag](rdd: RDD[A])(implicit 
context: SQLContext)
+  //    : DataFrame = {
+  //    context.createDataFrame(rdd)
+  //  }
+
+  /** Converts $"col name" into an [[Column]]. */
+  implicit class StringToColumn(val sc: StringContext) extends AnyVal {
+    def $(args: Any*): ColumnName = {
+      new ColumnName(sc.s(args :_*))
+    }
+  }
+
+  private[this] implicit def toColumn(expr: Expression): Column = new 
Column(expr)
+
+  /**
+   * Returns a [[Column]] based on the given column name.
+   */
+  def col(colName: String): Column = new Column(colName)
+
+  /**
+   * Creates a [[Column]] of literal value.
+   */
+  def lit(literal: Any): Column = {
+    if (literal.isInstanceOf[Symbol]) {
+      return new ColumnName(literal.asInstanceOf[Symbol].name)
+    }
+
+    val literalExpr = literal match {
+      case v: Boolean => Literal(v, BooleanType)
+      case v: Byte => Literal(v, ByteType)
+      case v: Short => Literal(v, ShortType)
+      case v: Int => Literal(v, IntegerType)
+      case v: Long => Literal(v, LongType)
+      case v: Float => Literal(v, FloatType)
+      case v: Double => Literal(v, DoubleType)
+      case v: String => Literal(v, StringType)
+      case v: BigDecimal => Literal(Decimal(v), DecimalType.Unlimited)
+      case v: java.math.BigDecimal => Literal(Decimal(v), 
DecimalType.Unlimited)
+      case v: Decimal => Literal(v, DecimalType.Unlimited)
+      case v: java.sql.Timestamp => Literal(v, TimestampType)
+      case v: java.sql.Date => Literal(v, DateType)
+      case v: Array[Byte] => Literal(v, BinaryType)
+      case null => Literal(null, NullType)
+      case _ =>
+        throw new RuntimeException("Unsupported literal type " + 
literal.getClass + " " + literal)
+    }
+    new Column(literalExpr)
+  }
+
+  def sum(e: Column): Column = Sum(e.expr)
+  def sumDistinct(e: Column): Column = SumDistinct(e.expr)
+  def count(e: Column): Column = Count(e.expr)
+
+  def countDistinct(expr: Column, exprs: Column*): Column =
+    CountDistinct((expr +: exprs).map(_.expr))
+
+  def avg(e: Column): Column = Average(e.expr)
+  def first(e: Column): Column = First(e.expr)
+  def last(e: Column): Column = Last(e.expr)
+  def min(e: Column): Column = Min(e.expr)
+  def max(e: Column): Column = Max(e.expr)
+
+  def upper(e: Column): Column = Upper(e.expr)
+  def lower(e: Column): Column = Lower(e.expr)
+  def sqrt(e: Column): Column = Sqrt(e.expr)
+  def abs(e: Column): Column = Abs(e.expr)
+
+
+  // scalastyle:off
+
+  /* Use the following code to generate:
+  (0 to 22).map { x =>
+    val types = (1 to x).foldRight("RT")((i, s) => {s"A$i, $s"})
+    val typeTags = (1 to x).map(i => s"A$i: TypeTag").foldLeft("RT: 
TypeTag")(_ + ", " + _)
+    val args = (1 to x).map(i => s"arg$i: Column").mkString(", ")
+    val argsInUdf = (1 to x).map(i => s"arg$i.expr").mkString(", ")
+    println(s"""
+    /**
+     * Call a Scala function of ${x} arguments as user-defined function (UDF), 
and automatically
+     * infer the data types based on the function's signature.
+     */
+    def callUDF[$typeTags](f: Function$x[$types]${if (args.length > 0) ", " + 
args else ""}): Column = {
+      ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq($argsInUdf))
+    }""")
+  }
+
+  (0 to 22).map { x =>
+    val args = (1 to x).map(i => s"arg$i: Column").mkString(", ")
+    val fTypes = Seq.fill(x + 1)("_").mkString(", ")
+    val argsInUdf = (1 to x).map(i => s"arg$i.expr").mkString(", ")
+    println(s"""
+    /**
+     * Call a Scala function of ${x} arguments as user-defined function (UDF). 
This requires
+     * you to specify the return data type.
+     */
+    def callUDF(f: Function$x[$fTypes], returnType: DataType${if (args.length 
> 0) ", " + args else ""}): Column = {
+      ScalaUdf(f, returnType, Seq($argsInUdf))
+    }""")
+  }
+  }
+  */
+  /**
+   * Call a Scala function of 0 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag](f: Function0[RT]): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, Seq())
+  }
+
+  /**
+   * Call a Scala function of 1 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag](f: Function1[A1, RT], arg1: Column): 
Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr))
+  }
+
+  /**
+   * Call a Scala function of 2 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag](f: Function2[A1, A2, RT], 
arg1: Column, arg2: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr))
+  }
+
+  /**
+   * Call a Scala function of 3 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag](f: 
Function3[A1, A2, A3, RT], arg1: Column, arg2: Column, arg3: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr))
+  }
+
+  /**
+   * Call a Scala function of 4 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: 
TypeTag](f: Function4[A1, A2, A3, A4, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr))
+  }
+
+  /**
+   * Call a Scala function of 5 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag](f: Function5[A1, A2, A3, A4, A5, RT], arg1: Column, arg2: Column, 
arg3: Column, arg4: Column, arg5: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr))
+  }
+
+  /**
+   * Call a Scala function of 6 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag](f: Function6[A1, A2, A3, A4, A5, A6, RT], arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column): 
Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr))
+  }
+
+  /**
+   * Call a Scala function of 7 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag](f: Function7[A1, A2, A3, A4, A5, A6, A7, 
RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr))
+  }
+
+  /**
+   * Call a Scala function of 8 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag](f: Function8[A1, A2, A3, 
A4, A5, A6, A7, A8, RT], arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr))
+  }
+
+  /**
+   * Call a Scala function of 9 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag](f: 
Function9[A1, A2, A3, A4, A5, A6, A7, A8, A9, RT], arg1: Column, arg2: Column, 
arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: 
Column, arg9: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr))
+  }
+
+  /**
+   * Call a Scala function of 10 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: 
TypeTag](f: Function10[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, RT], arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, 
arg7: Column, arg8: Column, arg9: Column, arg10: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr))
+  }
+
+  /**
+   * Call a Scala function of 11 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag](f: Function11[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, RT], 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr))
+  }
+
+  /**
+   * Call a Scala function of 12 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag](f: Function12[A1, A2, A3, A4, A5, A6, A7, A8, A9, 
A10, A11, A12, RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr))
+  }
+
+  /**
+   * Call a Scala function of 13 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag](f: Function13[A1, A2, A3, A4, A5, A6, 
A7, A8, A9, A10, A11, A12, A13, RT], arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr))
+  }
+
+  /**
+   * Call a Scala function of 14 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag](f: Function14[A1, A2, 
A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr))
+  }
+
+  /**
+   * Call a Scala function of 15 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag](f: 
Function15[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, 
RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column, arg12: Column, arg13: Column, arg14: Column, arg15: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr))
+  }
+
+  /**
+   * Call a Scala function of 16 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag](f: Function16[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, 
A14, A15, A16, RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, arg15: 
Column, arg16: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr))
+  }
+
+  /**
+   * Call a Scala function of 17 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag](f: Function17[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, 
A11, A12, A13, A14, A15, A16, A17, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr))
+  }
+
+  /**
+   * Call a Scala function of 18 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag](f: Function18[A1, A2, A3, A4, A5, A6, A7, 
A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: 
Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr))
+  }
+
+  /**
+   * Call a Scala function of 19 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag](f: Function19[A1, A2, A3, 
A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, RT], 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: Column, 
arg12: Column, arg13: Column, arg14: Column, arg15: Column, arg16: Column, 
arg17: Column, arg18: Column, arg19: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr))
+  }
+
+  /**
+   * Call a Scala function of 20 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag](f: 
Function20[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, 
A16, A17, A18, A19, A20, RT], arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: Column, 
arg20: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr))
+  }
+
+  /**
+   * Call a Scala function of 21 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag, A21: 
TypeTag](f: Function21[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, 
A14, A15, A16, A17, A18, A19, A20, A21, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, 
arg19: Column, arg20: Column, arg21: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr, arg21.expr))
+  }
+
+  /**
+   * Call a Scala function of 22 arguments as user-defined function (UDF), and 
automatically
+   * infer the data types based on the function's signature.
+   */
+  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag, A21: TypeTag, 
A22: TypeTag](f: Function22[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, 
A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: 
Column, arg19: Column, arg20: Column, arg21: Column, arg22: Column): Column = {
+    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr, arg21.expr, arg22.expr))
+  }
+
+  
//////////////////////////////////////////////////////////////////////////////////////////////////
+
+  /**
+   * Call a Scala function of 0 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function0[_], returnType: DataType): Column = {
+    ScalaUdf(f, returnType, Seq())
+  }
+
+  /**
+   * Call a Scala function of 1 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function1[_, _], returnType: DataType, arg1: Column): Column 
= {
+    ScalaUdf(f, returnType, Seq(arg1.expr))
+  }
+
+  /**
+   * Call a Scala function of 2 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function2[_, _, _], returnType: DataType, arg1: Column, arg2: 
Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr))
+  }
+
+  /**
+   * Call a Scala function of 3 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function3[_, _, _, _], returnType: DataType, arg1: Column, 
arg2: Column, arg3: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr))
+  }
+
+  /**
+   * Call a Scala function of 4 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function4[_, _, _, _, _], returnType: DataType, arg1: Column, 
arg2: Column, arg3: Column, arg4: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr))
+  }
+
+  /**
+   * Call a Scala function of 5 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function5[_, _, _, _, _, _], returnType: DataType, arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr))
+  }
+
+  /**
+   * Call a Scala function of 6 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function6[_, _, _, _, _, _, _], returnType: DataType, arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column): 
Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr))
+  }
+
+  /**
+   * Call a Scala function of 7 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function7[_, _, _, _, _, _, _, _], returnType: DataType, 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr))
+  }
+
+  /**
+   * Call a Scala function of 8 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function8[_, _, _, _, _, _, _, _, _], returnType: DataType, 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr))
+  }
+
+  /**
+   * Call a Scala function of 9 arguments as user-defined function (UDF). This 
requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function9[_, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr))
+  }
+
+  /**
+   * Call a Scala function of 10 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function10[_, _, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column): Column 
= {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr))
+  }
+
+  /**
+   * Call a Scala function of 11 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function11[_, _, _, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr))
+  }
+
+  /**
+   * Call a Scala function of 12 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function12[_, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr))
+  }
+
+  /**
+   * Call a Scala function of 13 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function13[_, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr))
+  }
+
+  /**
+   * Call a Scala function of 14 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function14[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr))
+  }
+
+  /**
+   * Call a Scala function of 15 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function15[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, arg15: 
Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr))
+  }
+
+  /**
+   * Call a Scala function of 16 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function16[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr))
+  }
+
+  /**
+   * Call a Scala function of 17 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function17[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr))
+  }
+
+  /**
+   * Call a Scala function of 18 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function18[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr))
+  }
+
+  /**
+   * Call a Scala function of 19 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function19[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: Column): 
Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr))
+  }
+
+  /**
+   * Call a Scala function of 20 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function20[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: 
Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: 
Column, arg20: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr))
+  }
+
+  /**
+   * Call a Scala function of 21 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function21[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: 
Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: 
Column, arg20: Column, arg21: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr, arg21.expr))
+  }
+
+  /**
+   * Call a Scala function of 22 arguments as user-defined function (UDF). 
This requires
+   * you to specify the return data type.
+   */
+  def callUDF(f: Function22[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, 
arg19: Column, arg20: Column, arg21: Column, arg22: Column): Column = {
+    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr, arg21.expr, arg22.expr))
+  }
+
+  // scalastyle:on
+}

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/main/scala/org/apache/spark/sql/api/java/dsl.java
----------------------------------------------------------------------
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/api/java/dsl.java 
b/sql/core/src/main/scala/org/apache/spark/sql/api/java/dsl.java
deleted file mode 100644
index 16702af..0000000
--- a/sql/core/src/main/scala/org/apache/spark/sql/api/java/dsl.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.sql.api.java;
-
-import org.apache.spark.sql.Column;
-import org.apache.spark.sql.DataFrame;
-import org.apache.spark.sql.api.scala.dsl.package$;
-
-
-/**
- * Java version of the domain-specific functions available for {@link 
DataFrame}.
- *
- * The Scala version is at {@link org.apache.spark.sql.api.scala.dsl}.
- */
-public class dsl {
-  // NOTE: Update also the Scala version when we update this version.
-
-  private static package$ scalaDsl = package$.MODULE$;
-
-  /**
-   * Returns a {@link Column} based on the given column name.
-   */
-  public static Column col(String colName) {
-    return new Column(colName);
-  }
-
-  /**
-   * Creates a column of literal value.
-   */
-  public static Column lit(Object literalValue) {
-    return scalaDsl.lit(literalValue);
-  }
-
-  public static Column sum(Column e) {
-    return scalaDsl.sum(e);
-  }
-
-  public static Column sumDistinct(Column e) {
-    return scalaDsl.sumDistinct(e);
-  }
-
-  public static Column avg(Column e) {
-    return scalaDsl.avg(e);
-  }
-
-  public static Column first(Column e) {
-    return scalaDsl.first(e);
-  }
-
-  public static Column last(Column e) {
-    return scalaDsl.last(e);
-  }
-
-  public static Column min(Column e) {
-    return scalaDsl.min(e);
-  }
-
-  public static Column max(Column e) {
-    return scalaDsl.max(e);
-  }
-
-  public static Column upper(Column e) {
-    return scalaDsl.upper(e);
-  }
-
-  public static Column lower(Column e) {
-    return scalaDsl.lower(e);
-  }
-
-  public static Column sqrt(Column e) {
-    return scalaDsl.sqrt(e);
-  }
-
-  public static Column abs(Column e) {
-    return scalaDsl.abs(e);
-  }
-}

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/main/scala/org/apache/spark/sql/api/scala/dsl/package.scala
----------------------------------------------------------------------
diff --git 
a/sql/core/src/main/scala/org/apache/spark/sql/api/scala/dsl/package.scala 
b/sql/core/src/main/scala/org/apache/spark/sql/api/scala/dsl/package.scala
deleted file mode 100644
index dc851fc..0000000
--- a/sql/core/src/main/scala/org/apache/spark/sql/api/scala/dsl/package.scala
+++ /dev/null
@@ -1,523 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.sql.api.scala
-
-import scala.language.implicitConversions
-import scala.reflect.runtime.universe.{TypeTag, typeTag}
-
-import org.apache.spark.rdd.RDD
-import org.apache.spark.sql._
-import org.apache.spark.sql.catalyst.ScalaReflection
-import org.apache.spark.sql.catalyst.expressions._
-import org.apache.spark.sql.types._
-
-
-/**
- * Scala version of the domain specific functions available for [[DataFrame]].
- *
- * The Java-version is at [[api.java.dsl]].
- */
-package object dsl {
-  // NOTE: Update also the Java version when we update this version.
-
-  /** An implicit conversion that turns a Scala `Symbol` into a [[Column]]. */
-  implicit def symbolToColumn(s: Symbol): ColumnName = new ColumnName(s.name)
-
-//  /**
-//   * An implicit conversion that turns a RDD of product into a [[DataFrame]].
-//   *
-//   * This method requires an implicit SQLContext in scope. For example:
-//   * {{{
-//   *   implicit val sqlContext: SQLContext = ...
-//   *   val rdd: RDD[(Int, String)] = ...
-//   *   rdd.toDataFrame  // triggers the implicit here
-//   * }}}
-//   */
-//  implicit def rddToDataFrame[A <: Product: TypeTag](rdd: RDD[A])(implicit 
context: SQLContext)
-//    : DataFrame = {
-//    context.createDataFrame(rdd)
-//  }
-
-  /** Converts $"col name" into an [[Column]]. */
-  implicit class StringToColumn(val sc: StringContext) extends AnyVal {
-    def $(args: Any*): ColumnName = {
-      new ColumnName(sc.s(args :_*))
-    }
-  }
-
-  private[this] implicit def toColumn(expr: Expression): Column = new 
Column(expr)
-
-  /**
-   * Returns a [[Column]] based on the given column name.
-   */
-  def col(colName: String): Column = new Column(colName)
-
-  /**
-   * Creates a [[Column]] of literal value.
-   */
-  def lit(literal: Any): Column = {
-    if (literal.isInstanceOf[Symbol]) {
-      return new ColumnName(literal.asInstanceOf[Symbol].name)
-    }
-
-    val literalExpr = literal match {
-      case v: Boolean => Literal(v, BooleanType)
-      case v: Byte => Literal(v, ByteType)
-      case v: Short => Literal(v, ShortType)
-      case v: Int => Literal(v, IntegerType)
-      case v: Long => Literal(v, LongType)
-      case v: Float => Literal(v, FloatType)
-      case v: Double => Literal(v, DoubleType)
-      case v: String => Literal(v, StringType)
-      case v: BigDecimal => Literal(Decimal(v), DecimalType.Unlimited)
-      case v: java.math.BigDecimal => Literal(Decimal(v), 
DecimalType.Unlimited)
-      case v: Decimal => Literal(v, DecimalType.Unlimited)
-      case v: java.sql.Timestamp => Literal(v, TimestampType)
-      case v: java.sql.Date => Literal(v, DateType)
-      case v: Array[Byte] => Literal(v, BinaryType)
-      case null => Literal(null, NullType)
-      case _ =>
-        throw new RuntimeException("Unsupported literal type " + 
literal.getClass + " " + literal)
-    }
-    new Column(literalExpr)
-  }
-
-  def sum(e: Column): Column = Sum(e.expr)
-  def sumDistinct(e: Column): Column = SumDistinct(e.expr)
-  def count(e: Column): Column = Count(e.expr)
-
-  def countDistinct(expr: Column, exprs: Column*): Column =
-    CountDistinct((expr +: exprs).map(_.expr))
-
-  def avg(e: Column): Column = Average(e.expr)
-  def first(e: Column): Column = First(e.expr)
-  def last(e: Column): Column = Last(e.expr)
-  def min(e: Column): Column = Min(e.expr)
-  def max(e: Column): Column = Max(e.expr)
-
-  def upper(e: Column): Column = Upper(e.expr)
-  def lower(e: Column): Column = Lower(e.expr)
-  def sqrt(e: Column): Column = Sqrt(e.expr)
-  def abs(e: Column): Column = Abs(e.expr)
-
-
-  // scalastyle:off
-
-  /* Use the following code to generate:
-  (0 to 22).map { x =>
-    val types = (1 to x).foldRight("RT")((i, s) => {s"A$i, $s"})
-    val typeTags = (1 to x).map(i => s"A$i: TypeTag").foldLeft("RT: 
TypeTag")(_ + ", " + _)
-    val args = (1 to x).map(i => s"arg$i: Column").mkString(", ")
-    val argsInUdf = (1 to x).map(i => s"arg$i.expr").mkString(", ")
-    println(s"""
-    /**
-     * Call a Scala function of ${x} arguments as user-defined function (UDF), 
and automatically
-     * infer the data types based on the function's signature.
-     */
-    def callUDF[$typeTags](f: Function$x[$types]${if (args.length > 0) ", " + 
args else ""}): Column = {
-      ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq($argsInUdf))
-    }""")
-  }
-
-  (0 to 22).map { x =>
-    val args = (1 to x).map(i => s"arg$i: Column").mkString(", ")
-    val fTypes = Seq.fill(x + 1)("_").mkString(", ")
-    val argsInUdf = (1 to x).map(i => s"arg$i.expr").mkString(", ")
-    println(s"""
-    /**
-     * Call a Scala function of ${x} arguments as user-defined function (UDF). 
This requires
-     * you to specify the return data type.
-     */
-    def callUDF(f: Function$x[$fTypes], returnType: DataType${if (args.length 
> 0) ", " + args else ""}): Column = {
-      ScalaUdf(f, returnType, Seq($argsInUdf))
-    }""")
-  }
-  }
-  */
-  /**
-   * Call a Scala function of 0 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag](f: Function0[RT]): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, Seq())
-  }
-
-  /**
-   * Call a Scala function of 1 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag](f: Function1[A1, RT], arg1: Column): 
Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr))
-  }
-
-  /**
-   * Call a Scala function of 2 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag](f: Function2[A1, A2, RT], 
arg1: Column, arg2: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr))
-  }
-
-  /**
-   * Call a Scala function of 3 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag](f: 
Function3[A1, A2, A3, RT], arg1: Column, arg2: Column, arg3: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr))
-  }
-
-  /**
-   * Call a Scala function of 4 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: 
TypeTag](f: Function4[A1, A2, A3, A4, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr))
-  }
-
-  /**
-   * Call a Scala function of 5 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag](f: Function5[A1, A2, A3, A4, A5, RT], arg1: Column, arg2: Column, 
arg3: Column, arg4: Column, arg5: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr))
-  }
-
-  /**
-   * Call a Scala function of 6 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag](f: Function6[A1, A2, A3, A4, A5, A6, RT], arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column): 
Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr))
-  }
-
-  /**
-   * Call a Scala function of 7 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag](f: Function7[A1, A2, A3, A4, A5, A6, A7, 
RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr))
-  }
-
-  /**
-   * Call a Scala function of 8 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag](f: Function8[A1, A2, A3, 
A4, A5, A6, A7, A8, RT], arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr))
-  }
-
-  /**
-   * Call a Scala function of 9 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag](f: 
Function9[A1, A2, A3, A4, A5, A6, A7, A8, A9, RT], arg1: Column, arg2: Column, 
arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: 
Column, arg9: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr))
-  }
-
-  /**
-   * Call a Scala function of 10 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: 
TypeTag](f: Function10[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, RT], arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, 
arg7: Column, arg8: Column, arg9: Column, arg10: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr))
-  }
-
-  /**
-   * Call a Scala function of 11 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag](f: Function11[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, RT], 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr))
-  }
-
-  /**
-   * Call a Scala function of 12 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag](f: Function12[A1, A2, A3, A4, A5, A6, A7, A8, A9, 
A10, A11, A12, RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr))
-  }
-
-  /**
-   * Call a Scala function of 13 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag](f: Function13[A1, A2, A3, A4, A5, A6, 
A7, A8, A9, A10, A11, A12, A13, RT], arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr))
-  }
-
-  /**
-   * Call a Scala function of 14 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag](f: Function14[A1, A2, 
A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr))
-  }
-
-  /**
-   * Call a Scala function of 15 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag](f: 
Function15[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, 
RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column, arg12: Column, arg13: Column, arg14: Column, arg15: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr))
-  }
-
-  /**
-   * Call a Scala function of 16 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag](f: Function16[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, 
A14, A15, A16, RT], arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, arg15: 
Column, arg16: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr))
-  }
-
-  /**
-   * Call a Scala function of 17 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag](f: Function17[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, 
A11, A12, A13, A14, A15, A16, A17, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr))
-  }
-
-  /**
-   * Call a Scala function of 18 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag](f: Function18[A1, A2, A3, A4, A5, A6, A7, 
A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: 
Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr))
-  }
-
-  /**
-   * Call a Scala function of 19 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag](f: Function19[A1, A2, A3, 
A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, RT], 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: Column, 
arg12: Column, arg13: Column, arg14: Column, arg15: Column, arg16: Column, 
arg17: Column, arg18: Column, arg19: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr))
-  }
-
-  /**
-   * Call a Scala function of 20 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag](f: 
Function20[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, 
A16, A17, A18, A19, A20, RT], arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: Column, 
arg20: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr))
-  }
-
-  /**
-   * Call a Scala function of 21 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag, A21: 
TypeTag](f: Function21[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, 
A14, A15, A16, A17, A18, A19, A20, A21, RT], arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, 
arg19: Column, arg20: Column, arg21: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr, arg21.expr))
-  }
-
-  /**
-   * Call a Scala function of 22 arguments as user-defined function (UDF), and 
automatically
-   * infer the data types based on the function's signature.
-   */
-  def callUDF[RT: TypeTag, A1: TypeTag, A2: TypeTag, A3: TypeTag, A4: TypeTag, 
A5: TypeTag, A6: TypeTag, A7: TypeTag, A8: TypeTag, A9: TypeTag, A10: TypeTag, 
A11: TypeTag, A12: TypeTag, A13: TypeTag, A14: TypeTag, A15: TypeTag, A16: 
TypeTag, A17: TypeTag, A18: TypeTag, A19: TypeTag, A20: TypeTag, A21: TypeTag, 
A22: TypeTag](f: Function22[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, 
A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, RT], arg1: Column, arg2: 
Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, 
arg8: Column, arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: 
Column, arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: 
Column, arg19: Column, arg20: Column, arg21: Column, arg22: Column): Column = {
-    ScalaUdf(f, ScalaReflection.schemaFor(typeTag[RT]).dataType, 
Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, arg5.expr, arg6.expr, 
arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, arg12.expr, 
arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, arg18.expr, 
arg19.expr, arg20.expr, arg21.expr, arg22.expr))
-  }
-
-  
//////////////////////////////////////////////////////////////////////////////////////////////////
-
-  /**
-   * Call a Scala function of 0 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function0[_], returnType: DataType): Column = {
-    ScalaUdf(f, returnType, Seq())
-  }
-
-  /**
-   * Call a Scala function of 1 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function1[_, _], returnType: DataType, arg1: Column): Column 
= {
-    ScalaUdf(f, returnType, Seq(arg1.expr))
-  }
-
-  /**
-   * Call a Scala function of 2 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function2[_, _, _], returnType: DataType, arg1: Column, arg2: 
Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr))
-  }
-
-  /**
-   * Call a Scala function of 3 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function3[_, _, _, _], returnType: DataType, arg1: Column, 
arg2: Column, arg3: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr))
-  }
-
-  /**
-   * Call a Scala function of 4 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function4[_, _, _, _, _], returnType: DataType, arg1: Column, 
arg2: Column, arg3: Column, arg4: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr))
-  }
-
-  /**
-   * Call a Scala function of 5 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function5[_, _, _, _, _, _], returnType: DataType, arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr))
-  }
-
-  /**
-   * Call a Scala function of 6 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function6[_, _, _, _, _, _, _], returnType: DataType, arg1: 
Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: Column): 
Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr))
-  }
-
-  /**
-   * Call a Scala function of 7 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function7[_, _, _, _, _, _, _, _], returnType: DataType, 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr))
-  }
-
-  /**
-   * Call a Scala function of 8 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function8[_, _, _, _, _, _, _, _, _], returnType: DataType, 
arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, arg6: 
Column, arg7: Column, arg8: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr))
-  }
-
-  /**
-   * Call a Scala function of 9 arguments as user-defined function (UDF). This 
requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function9[_, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr))
-  }
-
-  /**
-   * Call a Scala function of 10 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function10[_, _, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column): Column 
= {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr))
-  }
-
-  /**
-   * Call a Scala function of 11 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function11[_, _, _, _, _, _, _, _, _, _, _, _], returnType: 
DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, arg5: Column, 
arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: Column, arg11: 
Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr))
-  }
-
-  /**
-   * Call a Scala function of 12 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function12[_, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr))
-  }
-
-  /**
-   * Call a Scala function of 13 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function13[_, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr))
-  }
-
-  /**
-   * Call a Scala function of 14 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function14[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr))
-  }
-
-  /**
-   * Call a Scala function of 15 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function15[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _], 
returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: Column, 
arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, arg10: 
Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, arg15: 
Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr))
-  }
-
-  /**
-   * Call a Scala function of 16 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function16[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr))
-  }
-
-  /**
-   * Call a Scala function of 17 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function17[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr))
-  }
-
-  /**
-   * Call a Scala function of 18 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function18[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr))
-  }
-
-  /**
-   * Call a Scala function of 19 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function19[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, arg4: 
Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: Column, 
arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: Column, 
arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: Column): 
Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr))
-  }
-
-  /**
-   * Call a Scala function of 20 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function20[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: 
Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: 
Column, arg20: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr))
-  }
-
-  /**
-   * Call a Scala function of 21 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function21[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: Column, 
arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, arg9: 
Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, arg14: 
Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, arg19: 
Column, arg20: Column, arg21: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr, arg21.expr))
-  }
-
-  /**
-   * Call a Scala function of 22 arguments as user-defined function (UDF). 
This requires
-   * you to specify the return data type.
-   */
-  def callUDF(f: Function22[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, 
_, _, _, _, _, _], returnType: DataType, arg1: Column, arg2: Column, arg3: 
Column, arg4: Column, arg5: Column, arg6: Column, arg7: Column, arg8: Column, 
arg9: Column, arg10: Column, arg11: Column, arg12: Column, arg13: Column, 
arg14: Column, arg15: Column, arg16: Column, arg17: Column, arg18: Column, 
arg19: Column, arg20: Column, arg21: Column, arg22: Column): Column = {
-    ScalaUdf(f, returnType, Seq(arg1.expr, arg2.expr, arg3.expr, arg4.expr, 
arg5.expr, arg6.expr, arg7.expr, arg8.expr, arg9.expr, arg10.expr, arg11.expr, 
arg12.expr, arg13.expr, arg14.expr, arg15.expr, arg16.expr, arg17.expr, 
arg18.expr, arg19.expr, arg20.expr, arg21.expr, arg22.expr))
-  }
-
-  // scalastyle:on
-}

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
----------------------------------------------------------------------
diff --git 
a/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala 
b/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
index cccc547..c9221f8 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
@@ -19,7 +19,7 @@ package org.apache.spark.sql
 
 import org.apache.spark.sql.TestData._
 import org.apache.spark.sql.columnar._
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.test.TestSQLContext._
 import org.apache.spark.storage.{StorageLevel, RDDBlockId}
 

http://git-wip-us.apache.org/repos/asf/spark/blob/71563223/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
----------------------------------------------------------------------
diff --git 
a/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala 
b/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
index 8202931..6428554 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
@@ -17,7 +17,7 @@
 
 package org.apache.spark.sql
 
-import org.apache.spark.sql.api.scala.dsl._
+import org.apache.spark.sql.Dsl._
 import org.apache.spark.sql.test.TestSQLContext
 import org.apache.spark.sql.types.{BooleanType, IntegerType, StructField, 
StructType}
 


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