gengliangwang commented on a change in pull request #23471: [SPARK-26550][SQL] 
New built-in datasource - none
URL: https://github.com/apache/spark/pull/23471#discussion_r245497260
 
 

 ##########
 File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala
 ##########
 @@ -621,6 +620,8 @@ object DataSource extends Logging {
         "org.apache.spark.sql.hive.orc.OrcFileFormat"
       case "com.databricks.spark.avro" if 
conf.replaceDatabricksSparkAvroEnabled =>
         "org.apache.spark.sql.avro.AvroFileFormat"
+      case name if name.equalsIgnoreCase("none") =>
+        "org.apache.spark.sql.execution.datasources.none.NoneDataSource"
 
 Review comment:
   +1

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