[GitHub] [spark] viirya commented on a change in pull request #25354: [SPARK-28612][SQL] Add DataFrameWriterV2 API

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viirya commented on a change in pull request #25354: [SPARK-28612][SQL] Add DataFrameWriterV2 API
URL: https://github.com/apache/spark/pull/25354#discussion_r311366921
 
 

 ##########
 File path: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
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 @@ -3146,6 +3146,34 @@ class Dataset[T] private[sql](
     new DataFrameWriter[T](this)
   }
 
+  /**
+   * Create a write configuration builder for v2 sources.
+   *
+   * This builder is used to configure and execute write operations. For example, to append to an
+   * existing table, run:
+   *
+   * {{{
+   *   df.writeTo("catalog.db.table").append()
+   * }}}
+   *
+   * This can also be used to create or replace existing tables:
+   *
+   * {{{
+   *   df.writeTo("catalog.db.table").partitionedBy($"col").createOrReplace()
+   * }}}
+   *
+   * @group basic
+   * @since 3.0.0
+   */
+  def writeTo(table: String): DataFrameWriterV2[T] = {
+    // TODO: streaming could be adapted to use this interface
+    if (isStreaming) {
+      logicalPlan.failAnalysis(
+        "'write' can not be called on streaming Dataset/DataFrame")
 
 Review comment:
   It's a typo, I think. `writeTo` here.

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