Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/13310#discussion_r64675651
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala
---
@@ -103,7 +103,11 @@ class SparkSession private(
* A wrapped version of this session in the form of a [[SQLContext]],
for backward compatibility.
*/
@transient
- private[sql] val sqlContext: SQLContext = new SQLContext(this)
+ private[sql] val sqlContext: SQLContext = existingSharedState match {
+ // If we have an existing SharedState, we should not create a root
SQLContext at here.
+ case Some(sharedState) => new SQLContext(this, false)
+ case None => new SQLContext(this, true)
--- End diff --
I am removing isRootContext flag.
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