sadikovi commented on code in PR #37881:
URL: https://github.com/apache/spark/pull/37881#discussion_r971441087
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala:
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@@ -186,10 +186,10 @@ object FileSourceStrategy extends Strategy with
PredicateHelper with Logging {
// Partition keys are not available in the statistics of the files.
// `dataColumns` might have partition columns, we need to filter them
out.
- val dataColumnsWithoutPartitionCols =
dataColumns.filterNot(partitionColumns.contains)
+ val dataColumnsWithoutPartitionCols = AttributeSet(dataColumns) --
partitionColumns
Review Comment:
I am not an expert in AttributeSet so it would be good if you could explain
how it makes this work so I can reference it in the future 😄.
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