cloud-fan commented on a change in pull request #34684:
URL: https://github.com/apache/spark/pull/34684#discussion_r758931580
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryRelation.scala
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@@ -237,7 +238,23 @@ case class CachedRDDBuilder(
}
def isCachedColumnBuffersLoaded: Boolean = {
- _cachedColumnBuffers != null
+ _cachedColumnBuffers != null && isCachedRDDLoaded
+ }
+
+ def isCachedRDDLoaded: Boolean = {
Review comment:
I'm not sure if it's necessary or not, but it's not difficult to apply
double lock here and make this method thread-safe.
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