Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21805#discussion_r204123221
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryRelation.scala
---
@@ -50,6 +50,8 @@ case class CachedRDDBuilder(
tableName: Option[String])(
@transient private var _cachedColumnBuffers: RDD[CachedBatch] = null) {
+ override def toString: String = s"CachedRDDBuilder($useCompression,
$batchSize, $storageLevel)"
--- End diff --
My major point is whether we need to output `$useCompression, $batchSize`.
How useful are they? Our explain output is already pretty long. Maybe we can
skip them?
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