Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/16898#discussion_r101888000
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatWriter.scala
---
@@ -108,9 +107,21 @@ object FileFormatWriter extends Logging {
job.setOutputValueClass(classOf[InternalRow])
FileOutputFormat.setOutputPath(job, new Path(outputSpec.outputPath))
+ val allColumns = queryExecution.logical.output
val partitionSet = AttributeSet(partitionColumns)
val dataColumns =
queryExecution.logical.output.filterNot(partitionSet.contains)
--- End diff --
If we rewrite it to `val dataColumns =
allColumns.filterNot(partitionColumns.contains)`, we do not need `partitionSet `
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