[SQL][SPARK-2094] Follow up of PR #1071 for Java API

Updated `JavaSQLContext` and `JavaHiveContext` similar to what we've done to `SQLContext` and `HiveContext` in PR #1071. Added corresponding test case for Spark SQL Java API.

Author: Cheng Lian <lian.cs.zju@gmail.com>

Closes #1085 from liancheng/spark-2094-java and squashes the following commits:

29b8a51 [Cheng Lian] Avoided instantiating JavaSparkContext & JavaHiveContext to workaround test failure
92bb4fb [Cheng Lian] Marked test cases in JavaHiveQLSuite with "ignore"
22aec97 [Cheng Lian] Follow up of PR #1071 for Java API

(cherry picked from commit 273afcb254fb5384204c56bdcb3b9b760bcfab3f)
Signed-off-by: Reynold Xin <rxin@apache.org>

1 files changed, 2 insertions, 8 deletions

diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/api/java/JavaHiveContext.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/api/java/JavaHiveContext.scala
index 6df76fa825..c9ee162191 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/api/java/JavaHiveContext.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/api/java/JavaHiveContext.scala
@@ -31,12 +31,6 @@ class JavaHiveContext(sparkContext: JavaSparkContext) extends JavaSQLContext(spa
   /**
     * Executes a query expressed in HiveQL, returning the result as a JavaSchemaRDD.
     */
-  def hql(hqlQuery: String): JavaSchemaRDD = {
-    val result = new JavaSchemaRDD(sqlContext, HiveQl.parseSql(hqlQuery))
-    // We force query optimization to happen right away instead of letting it happen lazily like
-    // when using the query DSL.  This is so DDL commands behave as expected.  This is only
-    // generates the RDD lineage for DML queries, but do not perform any execution.
-    result.queryExecution.toRdd
-    result
-  }
+  def hql(hqlQuery: String): JavaSchemaRDD =
+    new JavaSchemaRDD(sqlContext, HiveQl.parseSql(hqlQuery))
 }