cloud-fan commented on a change in pull request #33432:
URL: https://github.com/apache/spark/pull/33432#discussion_r709885488
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatDataWriter.scala
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@@ -271,17 +272,23 @@ abstract class BaseDynamicPartitionDataWriter(
val bucketIdStr =
bucketId.map(BucketingUtils.bucketIdToString).getOrElse("")
- // This must be in a form that matches our bucketing format. See
BucketingUtils.
- val ext = f"$bucketIdStr.c$fileCounter%03d" +
+ // The prefix and suffix must be in a form that matches our bucketing
format.
+ // See BucketingUtils.
+ val prefix = bucketId match {
Review comment:
nit:
bucketId.map(description.bucketSpec.get.bucketFileNamePrefix).getOrElse("")
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