passdown the schema for Parquet File in HiveContext

Author: chenghao-intel

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

@@ -208,14 +208,15 @@ private[hive] class HiveMetastoreCatalog(hive: HiveContext) extends Catalog with
         ParquetRelation2(
           paths,
           Map(ParquetRelation2.METASTORE_SCHEMA -> metastoreSchema.json),
-          None,
+          Some(metastoreSchema),
           Some(partitionSpec))(hive))
     } else {
       val paths = Seq(metastoreRelation.hiveQlTable.getDataLocation.toString)
       LogicalRelation(
         ParquetRelation2(
           paths,
-          Map(ParquetRelation2.METASTORE_SCHEMA -> metastoreSchema.json))(hive))
+          Map(ParquetRelation2.METASTORE_SCHEMA -> metastoreSchema.json),
+          Some(metastoreSchema))(hive))
     }
   }