olaky commented on code in PR #39408:
URL: https://github.com/apache/spark/pull/39408#discussion_r1069358007
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala:
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@@ -214,9 +214,20 @@ object FileSourceStrategy extends Strategy with
PredicateHelper with Logging {
.filterNot(partitionColumns.contains)
// Metadata attributes are part of a column of type struct up to this
point. Here we extract
- // this column from the schema.
+ // this column from the schema and specify a matcher for that.
+ object MetadataStructColumn {
+ def unapply(attributeReference: AttributeReference):
Option[AttributeReference] = {
Review Comment:
Unfortunately we require the exprId towards the end of the function
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