Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/7282#discussion_r34217159
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/sources/commands.scala ---
@@ -497,13 +501,14 @@ private[sql] class DynamicPartitionWriterContainer(
extends BaseWriterContainer(relation, job, isAppend) {
// All output writers are created on executor side.
- @transient protected var outputWriters: mutable.Map[String,
OutputWriter] = _
+ @transient protected var outputWriters: java.util.HashMap[String,
OutputWriter] = _
override protected def initWriters(): Unit = {
- outputWriters = mutable.Map.empty[String, OutputWriter]
+ outputWriters = new java.util.HashMap[String, OutputWriter]
}
override def outputWriterForRow(row: Row): OutputWriter = {
+ // TODO (SPARK-8888): zip and all the stuff happening here is very
inefficient.
val partitionPath = partitionColumns.zip(row.toSeq).map { case (col,
rawValue) =>
--- End diff --
Sorry, for the confusing, I mean just like the `printf`, as the partition
column names is fixed.
```
"/date=%s/hour=%d/min=%d".format(...)
```
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