Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/13342#discussion_r64953440
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala ---
@@ -358,6 +360,35 @@ final class DataFrameWriter private[sql](df:
DataFrame) {
}
/**
+ * :: Experimental ::
+ * Starts the execution of the streaming query, which will continually
send results to the given
+ * [[ForeachWriter]] as new data arrives. The returned
[[ContinuousQuery]] object can be used to
+ * interact with the stream.
+ *
+ * @since 2.0.0
+ */
+ @Experimental
+ def foreach(writer: ForeachWriter[T]): ContinuousQuery = {
+ val queryName = extraOptions.getOrElse("queryName",
StreamExecution.nextName)
+ val checkpointLocation = extraOptions.get("checkpointLocation")
+ .orElse {
+ df.sparkSession.sessionState.conf.checkpointLocation.map { l =>
+ new Path(l, queryName).toUri.toString
+ }
+ }.getOrElse {
--- End diff --
Will address this later
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