cloud-fan commented on a change in pull request #23824: [SPARK-26913][SQL] New
data source V2 API: SupportsDirectWrite
URL: https://github.com/apache/spark/pull/23824#discussion_r257672083
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File path: sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala
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@@ -264,6 +264,9 @@ final class DataFrameWriter[T] private[sql](ds:
Dataset[T]) {
val options = sessionOptions ++ extraOptions + checkFilesExistsOption
val dsOptions = new DataSourceOptions(options.asJava)
provider.getTable(dsOptions) match {
+ case table: SupportsDirectWrite =>
Review comment:
this should work without save mode. That said, we should add a new flag in
`AppendData` and other operators to indicate if it needs schema validation.
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