Set sessionState when dealing with CreateTableAsSelect.

Author: yhuai

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

@@ -27,6 +27,7 @@ import org.apache.hadoop.hive.metastore.{Warehouse, TableType}
 import org.apache.hadoop.hive.metastore.api.{Table => TTable, Partition => TPartition, FieldSchema}
 import org.apache.hadoop.hive.ql.metadata._
 import org.apache.hadoop.hive.ql.plan.CreateTableDesc
+import org.apache.hadoop.hive.ql.session.SessionState
 import org.apache.hadoop.hive.serde.serdeConstants
 import org.apache.hadoop.hive.serde2.{Deserializer, SerDeException}
 import org.apache.hadoop.hive.serde2.`lazy`.LazySimpleSerDe
@@ -402,6 +403,9 @@ private[hive] class HiveMetastoreCatalog(hive: HiveContext) extends Catalog with
         val desc: Option[CreateTableDesc] = if (tableExists(Seq(databaseName, tblName))) {
           None
         } else {
+          // Set the current SessionState to our own SessionState. So, we will make sure
+          // this state can be picked up inside analyzeInternal.
+          SessionState.setCurrentSessionState(hive.sessionState)
           val sa = new SemanticAnalyzer(hive.hiveconf) {
             override def analyzeInternal(ast: ASTNode) {
               // A hack to intercept the SemanticAnalyzer.analyzeInternal,