HyukjinKwon commented on a change in pull request #24540:
[SPARK-27253][SQL][FOLLOW-UP] Add a legacy flag to restore old session init
behavior
URL: https://github.com/apache/spark/pull/24540#discussion_r281863800
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/internal/BaseSessionStateBuilder.scala
##########
@@ -85,7 +85,13 @@ abstract class BaseSessionStateBuilder(
* with its [[SparkConf]] only when there is no parent session.
*/
protected lazy val conf: SQLConf = {
- parentState.map(_.conf.clone()).getOrElse {
+ parentState.map { s =>
+ val cloned = s.conf.clone()
+ if
(session.conf.get(StaticSQLConf.SQL_LEGACY_SESSION_INIT_WITH_DEFAULTS)) {
Review comment:
Yup.
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