fix test case failures

Author: tejasapatil

sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala

@@ -767,9 +767,14 @@ case class ShowCreateTableCommand(table: TableIdentifier) extends RunnableComman
       builder ++= partCols.mkString("PARTITIONED BY (", ", ", ")\n")
     }
 
-    if (metadata.bucketSpec.isDefined) {
-      throw new UnsupportedOperationException(
-        "Creating Hive table with bucket spec is not supported yet.")
+    if (metadata.bucketSpec.nonEmpty) {
+      val bucketSpec = metadata.bucketSpec.get
+      builder ++= s"CLUSTERED BY (${bucketSpec.bucketColumnNames.mkString(",")})\n"
+
+      if (bucketSpec.sortColumnNames.nonEmpty) {
+        builder ++= s"SORTED BY (${bucketSpec.sortColumnNames.map(_ + " ASC").mkString(", ")})\n"
+      }
+      builder ++= s"INTO ${bucketSpec.numBuckets} BUCKETS\n"
     }
   }
 

sql/hive/src/test/scala/org/apache/spark/sql/hive/ShowCreateTableSuite.scala

@@ -247,21 +247,16 @@ class ShowCreateTableSuite extends QueryTest with SQLTestUtils with TestHiveSing
     }
   }
 
-  test("hive bucketing is not supported") {
+  test("hive bucketing is supported") {
     withTable("t1") {
-      createRawHiveTable(
+      sql(
         s"""CREATE TABLE t1 (a INT, b STRING)
            |CLUSTERED BY (a)
            |SORTED BY (b)
            |INTO 2 BUCKETS
          """.stripMargin
       )
-
-      val cause = intercept[AnalysisException] {
-        sql("SHOW CREATE TABLE t1")
-      }
-
-      assert(cause.getMessage.contains(" - bucketing"))
+      checkCreateTable("t1")
     }
   }
 

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

@@ -517,9 +517,9 @@ class HiveDDLSuite
 
       assert(sql("DESC FORMATTED tbl").collect().containsSlice(
         Seq(
-          Row("Num Buckets", "8", null),
-          Row("Bucket Columns", "id1", null),
-          Row("Sort Columns", "id, name", null)
+          Row("Num Buckets:", "1024", ""),
+          Row("Bucket Columns:", "[id]", ""),
+          Row("Sort Columns:", "[id, name]", "")
         )
       ))
     }