address comments

cloud-fan · cloud-fan · commit dc63dbef21d7 · 2018-05-12T00:44:35.000+08:00
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/ReadOnlySQLConf.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/ReadOnlySQLConf.scala
@@ -51,6 +51,14 @@ class ReadOnlySQLConf(context: TaskContext) extends SQLConf {
   override def clear(): Unit = {
     throw new UnsupportedOperationException("Cannot mutate ReadOnlySQLConf.")
   }
+
+  override def clone(): SQLConf = {
+    throw new UnsupportedOperationException("Cannot clone/copy ReadOnlySQLConf.")
+  }
+
+  override def copy(entries: (ConfigEntry[_], Any)*): SQLConf = {
+    throw new UnsupportedOperationException("Cannot clone/copy ReadOnlySQLConf.")
+  }
 }
 
 class TaskContextConfigProvider(context: TaskContext) extends ConfigProvider {

Original file line number	Diff line number	Diff line change
`@@ -51,6 +51,14 @@ class ReadOnlySQLConf(context: TaskContext) extends SQLConf {`
`51`	`51`	`override def clear(): Unit = {`
`52`	`52`	`throw new UnsupportedOperationException("Cannot mutate ReadOnlySQLConf.")`
`53`	`53`	`}`
	`54`	`+`
	`55`	`+ override def clone(): SQLConf = {`
	`56`	`+ throw new UnsupportedOperationException("Cannot clone/copy ReadOnlySQLConf.")`
	`57`	`+ }`
	`58`	`+`
	`59`	`+ override def copy(entries: (ConfigEntry[_], Any)*): SQLConf = {`
	`60`	`+ throw new UnsupportedOperationException("Cannot clone/copy ReadOnlySQLConf.")`
	`61`	`+ }`
`54`	`62`	`}`
`55`	`63`
`56`	`64`	`class TaskContextConfigProvider(context: TaskContext) extends ConfigProvider {`