HIVE-9098: Check cross product for conditional task [Spark Branch] (Rui via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645671 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9078: Hive should not submit second SparkTask while previous one has failed.[Spark Branch] (Chengxiang via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645704 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9099: infer_bucket_sort_convert_join.q and mapjoin_hook.q failed.[Spark Branch]infer_bucket_sort_convert_join.q and mapjoin_hook.q failed.[Spark Branch]

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645765 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9101: bucket_map_join_spark4.q failed due to NPE.[Spark Branch] (Jimmy via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645842 13f79535-47bb-0310-9956-ffa450edef68
reverse r1645842: HIVE-9101: bucket_map_join_spark4.q failed due to NPE.[Spark Branch] (Jimmy via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645843 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9101: bucket_map_join_spark4.q failed due to NPE.[Spark Branch] (Jimmy via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1645844 13f79535-47bb-0310-9956-ffa450edef68