cloud-fan commented on a change in pull request #35459:
URL: https://github.com/apache/spark/pull/35459#discussion_r803293226
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala
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@@ -214,12 +214,12 @@ object FileSourceStrategy extends Strategy with
PredicateHelper with Logging {
logInfo(s"Output Data Schema: ${outputSchema.simpleString(5)}")
val metadataStructOpt = l.output.collectFirst {
- case MetadataAttribute(attr) => attr
+ case FileSourceMetadataAttribute(attr) => attr
}
val metadataColumns = metadataStructOpt.map { metadataStruct =>
metadataStruct.dataType.asInstanceOf[StructType].fields.map { field =>
Review comment:
now we can do
`metadataStruct.dataType.asInstanceOf[StructType].toAttributes`
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