cloud-fan commented on a change in pull request #23714:
[SPARK-26744][SQL]Support schema validation in FileDataSourceV2 framework
URL: https://github.com/apache/spark/pull/23714#discussion_r256791386
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileWriteBuilder.scala
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@@ -104,12 +104,24 @@ abstract class FileWriteBuilder(options:
DataSourceOptions)
options: Map[String, String],
dataSchema: StructType): OutputWriterFactory
+ /**
+ * Returns whether this format supports the given [[DataType]] in write path.
+ * By default all data types are supported.
+ */
+ def supportDataType(dataType: DataType): Boolean = true
Review comment:
This one is different. We are in a new class, and there is no `supportXXX`
method in this class that we need to follow.
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