[SPARK-13094][SQL] Add encoders for seq/array of primitives

Author: marmbrus

sql/core/src/main/scala/org/apache/spark/sql/SQLImplicits.scala

@@ -39,6 +39,8 @@ abstract class SQLImplicits {
   /** @since 1.6.0 */
   implicit def newProductEncoder[T <: Product : TypeTag]: Encoder[T] = ExpressionEncoder()
 
+  // Primitives
+
   /** @since 1.6.0 */
   implicit def newIntEncoder: Encoder[Int] = ExpressionEncoder()
 
@@ -56,13 +58,65 @@ abstract class SQLImplicits {
 
   /** @since 1.6.0 */
   implicit def newShortEncoder: Encoder[Short] = ExpressionEncoder()
-  /** @since 1.6.0 */
 
+  /** @since 1.6.0 */
   implicit def newBooleanEncoder: Encoder[Boolean] = ExpressionEncoder()
 
   /** @since 1.6.0 */
   implicit def newStringEncoder: Encoder[String] = ExpressionEncoder()
 
+  // Seqs
+
+  /** @since 1.6.1 */
+  implicit def newIntSeqEncoder: Encoder[Seq[Int]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newLongSeqEncoder: Encoder[Seq[Long]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newDoubleSeqEncoder: Encoder[Seq[Double]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newFloatSeqEncoder: Encoder[Seq[Float]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newByteSeqEncoder: Encoder[Seq[Byte]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newShortSeqEncoder: Encoder[Seq[Short]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newBooleanSeqEncoder: Encoder[Seq[Boolean]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newStringSeqEncoder: Encoder[Seq[String]] = ExpressionEncoder()
+
+  // Arrays
+
+  /** @since 1.6.1 */
+  implicit def newIntArrayEncoder: Encoder[Array[Int]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newLongArrayEncoder: Encoder[Array[Long]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newDoubleArrayEncoder: Encoder[Array[Double]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newFloatArrayEncoder: Encoder[Array[Float]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newByteArrayEncoder: Encoder[Array[Byte]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newShortArrayEncoder: Encoder[Array[Short]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newBooleanArrayEncoder: Encoder[Array[Boolean]] = ExpressionEncoder()
+
+  /** @since 1.6.1 */
+  implicit def newStringArrayEncoder: Encoder[Array[String]] = ExpressionEncoder()
+
   /**
    * Creates a [[Dataset]] from an RDD.
    * @since 1.6.0