[SPARK-8783] [SQL] CTAS with WITH clause does not work

Currently, CTESubstitution only handles the case that WITH is on the top of the plan.
I think it SHOULD handle the case that WITH is child of CTAS.
This patch simply changes 'match' to 'transform' for recursive search of WITH in the plan.

Author: Keuntae Park <sirpkt@apache.org>

Closes #7180 from sirpkt/SPARK-8783 and squashes the following commits:

e4428f0 [Keuntae Park] Merge remote-tracking branch 'upstream/master' into CTASwithWITH
1671c77 [Keuntae Park] WITH clause can be inside CTAS

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala

@@ -85,7 +85,7 @@ class Analyzer(
    */
   object CTESubstitution extends Rule[LogicalPlan] {
     // TODO allow subquery to define CTE
-    def apply(plan: LogicalPlan): LogicalPlan = plan match {
+    def apply(plan: LogicalPlan): LogicalPlan = plan transform  {
       case With(child, relations) => substituteCTE(child, relations)
       case other => other
     }

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala

@@ -159,6 +159,24 @@ class SQLQuerySuite extends QueryTest {
     checkAnswer(query, Row(1, 1) :: Nil)
   }
 
+  test("CTAS with WITH clause") {
+    val df = Seq((1, 1)).toDF("c1", "c2")
+    df.registerTempTable("table1")
+
+    sql(
+      """
+        |CREATE TABLE with_table1 AS
+        |WITH T AS (
+        |  SELECT *
+        |  FROM table1
+        |)
+        |SELECT *
+        |FROM T
+      """.stripMargin)
+    val query = sql("SELECT * FROM with_table1")
+    checkAnswer(query, Row(1, 1) :: Nil)
+  }
+
   test("explode nested Field") {
     Seq(NestedArray1(NestedArray2(Seq(1, 2, 3)))).toDF.registerTempTable("nestedArray")
     checkAnswer(