eatoncys commented on a change in pull request #23010: [SPARK-26012][SQL]Null
and '' values should not cause dynamic partition failure of string types
URL: https://github.com/apache/spark/pull/23010#discussion_r247748156
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatDataWriter.scala
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@@ -169,7 +182,13 @@ class DynamicPartitionDataWriter(
/** Extracts the partition values out of an input row. */
private lazy val getPartitionValues: InternalRow => UnsafeRow = {
- val proj = UnsafeProjection.create(description.partitionColumns,
description.allColumns)
+ val partitionExpression =
+ toBoundExprs(description.partitionColumns, description.allColumns).map {
+ case e: Expression if e.dataType == StringType =>
+ Empty2Null(e)
Review comment:
@cloud-fan Thanks for review, I have moved it before sort,
`PartitionColumns` isretained because it is used to calculate `getPartitionPath`
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