Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/4642#discussion_r24792972
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -792,16 +896,73 @@ trait DataFrame extends RDDApi[Row] with Serializable
{
* :: Experimental ::
* Adds the rows from this RDD to the specified table.
* Throws an exception if the table already exists.
+ * @group output
*/
@Experimental
def insertInto(tableName: String): Unit = insertInto(tableName,
overwrite = false)
/**
* Returns the content of the [[DataFrame]] as a RDD of JSON strings.
+ * @group rdd
*/
def toJSON: RDD[String]
////////////////////////////////////////////////////////////////////////////
+ // JDBC Write Support
+
////////////////////////////////////////////////////////////////////////////
+
+ /**
+ * Save this RDD to a JDBC database at `url` under the table name
`table`.
+ * This will run a `CREATE TABLE` and a bunch of `INSERT INTO`
statements.
+ * If you pass `true` for `allowExisting`, it will drop any table with
the
+ * given name; if you pass `false`, it will throw if the table already
+ * exists.
+ * @group output
+ */
+ def createJDBCTable(url: String, table: String, allowExisting: Boolean) {
--- End diff --
the impl should go into DataFrameImpl shouldn't it?
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