Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/21757#discussion_r202248225 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala --- @@ -254,13 +254,15 @@ class FindDataSourceTable(sparkSession: SparkSession) extends Rule[LogicalPlan] override def apply(plan: LogicalPlan): LogicalPlan = plan transform { case i @ InsertIntoTable(UnresolvedCatalogRelation(tableMeta), _, _, _, _) - if DDLUtils.isDatasourceTable(tableMeta) => + if DDLUtils.isDatasourceTable(tableMeta) && + DDLUtils.convertSchema(tableMeta, sparkSession) => --- End diff -- I do not think this is a right fix. If the original table is the native data source table, we will always use our parquet/orc reader instead of hive serde.
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