Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18268#discussion_r124446549
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/SetCommand.scala
---
@@ -150,12 +150,21 @@ object SetCommand {
* This command is for resetting SQLConf to the default values. Command
that runs
* {{{
* reset;
+ * reset key;
+ * reset key1 key2 ...;
* }}}
*/
-case object ResetCommand extends RunnableCommand with Logging {
+case class ResetCommand(key: Option[String]) extends RunnableCommand with
Logging {
override def run(sparkSession: SparkSession): Seq[Row] = {
- sparkSession.sessionState.conf.clear()
+ key match {
+ case None =>
+ sparkSession.sessionState.conf.clear()
+ // "RESET key" clear a specific property.
+ case Some(key) =>
+ key.split("\\s+")
--- End diff --
See the PR https://github.com/apache/spark/pull/18368
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