amaliujia commented on code in PR #40164:
URL: https://github.com/apache/spark/pull/40164#discussion_r1117843149
##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/Dataset.scala:
##########
@@ -2461,6 +2461,60 @@ class Dataset[T] private[sql] (val session:
SparkSession, private[sql] val plan:
new DataFrameWriterV2[T](table, this)
}
+ def unpersist(blocking: Boolean): this.type = {
+ throw new UnsupportedOperationException("unpersist() is not implemented.")
+ }
+
+ def unpersist(): this.type = unpersist(blocking = false)
+
+ def cache(): this.type = {
+ throw new UnsupportedOperationException("cache() is not implemented.")
+ }
+
+ def withWatermark(eventTime: String, delayThreshold: String): Dataset[T] = {
+ throw new UnsupportedOperationException("withWatermark is not
implemented.")
+ }
+
+ def observe(name: String, expr: Column, exprs: Column*): Dataset[T] = {
+ throw new UnsupportedOperationException("observe is not implemented.")
+ }
+
+ def foreach(f: T => Unit): Unit = {
+ throw new UnsupportedOperationException("foreach is not implemented.")
+ }
+
+ def foreachPartition(f: Iterator[T] => Unit): Unit = {
+ throw new UnsupportedOperationException("foreach is not implemented.")
+ }
+
+ def checkpoint(): Dataset[T] = {
+ throw new UnsupportedOperationException("checkpoint is not implemented.")
+ }
+
+ def checkpoint(eager: Boolean): Dataset[T] = {
+ throw new UnsupportedOperationException("checkpoint is not implemented.")
+ }
+
+ def localCheckpoint(): Dataset[T] = {
+ throw new UnsupportedOperationException("localCheckpoint is not
implemented.")
+ }
+
+ def localCheckpoint(eager: Boolean): Dataset[T] = {
+ throw new UnsupportedOperationException("localCheckpoint is not
implemented.")
+ }
+
+ def sameSemantics(other: Dataset[T]): Boolean = {
Review Comment:
Are you saying we should support this?
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