[SPARK-5592][SQL] java.net.URISyntaxException when insert data to a partitioned table

flowing sql get URISyntaxException:
```
create table sc as select *
from (select '2011-01-11', '2011-01-11+14:18:26' from src tablesample (1 rows)
union all
select '2011-01-11', '2011-01-11+15:18:26' from src tablesample (1 rows)
union all
select '2011-01-11', '2011-01-11+16:18:26' from src tablesample (1 rows) ) s;
create table sc_part (key string) partitioned by (ts string) stored as rcfile;
set hive.exec.dynamic.partition=true;
set hive.exec.dynamic.partition.mode=nonstrict;
insert overwrite table sc_part partition(ts) select * from sc;
```
java.net.URISyntaxException: Relative path in absolute URI: ts=2011-01-11+15:18:26
at org.apache.hadoop.fs.Path.initialize(Path.java:206)
at org.apache.hadoop.fs.Path.<init>(Path.java:172)
at org.apache.hadoop.fs.Path.<init>(Path.java:94)
at org.apache.spark.sql.hive.SparkHiveDynamicPartitionWriterContainer.org$apache$spark$sql$hive$SparkHiveDynamicPartitionWriterContainer$$newWriter$1(hiveWriterContainers.scala:230)
at org.apache.spark.sql.hive.SparkHiveDynamicPartitionWriterContainer$$anonfun$getLocalFileWriter$1.apply(hiveWriterContainers.scala:243)
at org.apache.spark.sql.hive.SparkHiveDynamicPartitionWriterContainer$$anonfun$getLocalFileWriter$1.apply(hiveWriterContainers.scala:243)
at scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:189)
at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:91)
at org.apache.spark.sql.hive.SparkHiveDynamicPartitionWriterContainer.getLocalFileWriter(hiveWriterContainers.scala:243)
at org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$org$apache$spark$sql$hive$execution$InsertIntoHiveTable$$writeToFile$1$1.apply(InsertIntoHiveTable.scala:113)
at org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$org$apache$spark$sql$hive$execution$InsertIntoHiveTable$$writeToFile$1$1.apply(InsertIntoHiveTable.scala:105)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at org.apache.spark.sql.hive.execution.InsertIntoHiveTable.org$apache$spark$sql$hive$execution$InsertIntoHiveTable$$writeToFile$1(InsertIntoHiveTable.scala:105)
at org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$saveAsHiveFile$3.apply(InsertIntoHiveTable.scala:87)
at org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$saveAsHiveFile$3.apply(InsertIntoHiveTable.scala:87)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:61)
at org.apache.spark.scheduler.Task.run(Task.scala:64)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:194)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.net.URISyntaxException: Relative path in absolute URI: ts=2011-01-11+15:18:26
at java.net.URI.checkPath(URI.java:1804)
at java.net.URI.<init>(URI.java:752)
at org.apache.hadoop.fs.Path.initialize(Path.java:203)

Author: wangfei <wangfei1@huawei.com>
Author: Fei Wang <wangfei1@huawei.com>

Closes #4368 from scwf/SPARK-5592 and squashes the following commits:

aa55ef4 [Fei Wang] comments addressed
f8f8bb1 [wangfei] added test case
f24624f [wangfei] Merge branch 'master' of https://github.com/apache/spark into SPARK-5592
9998177 [wangfei] added test case
ea81daf [wangfei] fix URISyntaxException

sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveWriterContainers.scala

@@ -30,6 +30,7 @@ import org.apache.hadoop.hive.ql.io.{HiveFileFormatUtils, HiveOutputFormat}
 import org.apache.hadoop.hive.ql.plan.{PlanUtils, TableDesc}
 import org.apache.hadoop.io.Writable
 import org.apache.hadoop.mapred._
+import org.apache.hadoop.hive.common.FileUtils
 
 import org.apache.spark.mapred.SparkHadoopMapRedUtil
 import org.apache.spark.sql.Row
@@ -212,9 +213,14 @@ private[spark] class SparkHiveDynamicPartitionWriterContainer(
       .zip(row.toSeq.takeRight(dynamicPartColNames.length))
       .map { case (col, rawVal) =>
         val string = if (rawVal == null) null else String.valueOf(rawVal)
-        s"/$col=${if (string == null || string.isEmpty) defaultPartName else string}"
-      }
-      .mkString
+        val colString = 
+          if (string == null || string.isEmpty) {
+            defaultPartName
+          } else {
+            FileUtils.escapePathName(string)
+          }
+        s"/$col=$colString"
+      }.mkString
 
     def newWriter = {
       val newFileSinkDesc = new FileSinkDesc(

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

@@ -859,6 +859,22 @@ class HiveQuerySuite extends HiveComparisonTest with BeforeAndAfter {
     }
   }
 
+  test("SPARK-5592: get java.net.URISyntaxException when dynamic partitioning") {
+    sql("""
+      |create table sc as select *
+      |from (select '2011-01-11', '2011-01-11+14:18:26' from src tablesample (1 rows)
+      |union all
+      |select '2011-01-11', '2011-01-11+15:18:26' from src tablesample (1 rows)
+      |union all
+      |select '2011-01-11', '2011-01-11+16:18:26' from src tablesample (1 rows) ) s
+    """.stripMargin)
+    sql("create table sc_part (key string) partitioned by (ts string) stored as rcfile")
+    sql("set hive.exec.dynamic.partition=true")
+    sql("set hive.exec.dynamic.partition.mode=nonstrict")
+    sql("insert overwrite table sc_part partition(ts) select * from sc")
+    sql("drop table sc_part")
+  }
+
   test("Partition spec validation") {
     sql("DROP TABLE IF EXISTS dp_test")
     sql("CREATE TABLE dp_test(key INT, value STRING) PARTITIONED BY (dp INT, sp INT)")