Github user liancheng commented on a diff in the pull request:

    https://github.com/apache/spark/pull/4294#discussion_r23887536
  
    --- Diff: 
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala ---
    @@ -314,11 +314,17 @@ private[sql] abstract class SparkStrategies extends 
QueryPlanner[SparkPlan] {
     
       object DDLStrategy extends Strategy {
         def apply(plan: LogicalPlan): Seq[SparkPlan] = plan match {
    -      case CreateTableUsing(tableName, userSpecifiedSchema, provider, 
true, options) =>
    +      case CreateTableUsing(tableName, userSpecifiedSchema, provider, 
true, opts, allowExisting) =>
             ExecutedCommand(
    -          CreateTempTableUsing(tableName, userSpecifiedSchema, provider, 
options)) :: Nil
    +          CreateTempTableUsing(
    +            tableName, userSpecifiedSchema, provider, opts, 
allowExisting)) :: Nil
    +      case CreateTableUsing(_, _, _, false, _, _) =>
    +        sys.error("Tables created with SQLContext must be TEMPORARY. Use a 
HiveContext instead.")
     
    -      case CreateTableUsing(tableName, userSpecifiedSchema, provider, 
false, options) =>
    +      case CreateTableUsingAsSelect(tableName, provider, true, options, 
allowExisting, query) =>
    +        ExecutedCommand(
    +          CreateTempTableUsingAsSelect(tableName, provider, options, 
allowExisting, query)) :: Nil
    +      case CreateTableUsingAsSelect(_, _, false, _, _, _) =>
    --- End diff --
    
    Same as above.


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