Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/16724#discussion_r100687248
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatWriter.scala
---
@@ -369,7 +371,78 @@ object FileFormatWriter extends Logging {
context = taskAttemptContext)
}
+ // Returns the partition path given a partition key.
+ private val getPartitionStringFunc = UnsafeProjection.create(
+ Seq(Concat(partitionStringExpression)), description.partitionColumns)
+
+ // Returns the data columns to be written given an input row
+ private val getOutputRow = UnsafeProjection.create(
+ description.dataColumns, description.allColumns)
+
override def execute(iter: Iterator[InternalRow]): Set[String] = {
+ val outputOrderingExprs = description.outputOrdering.map(_.child)
--- End diff --
Mainly is because there are two types of iterators, one is [UnsafeRow,
UnsafeRow], another is just [UnsafeRow].
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