Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5526#discussion_r28455069
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala ---
@@ -197,3 +233,69 @@ trait InsertableRelation {
trait CatalystScan {
def buildScan(requiredColumns: Seq[Attribute], filters:
Seq[Expression]): RDD[Row]
}
+
+/**
+ * ::Experimental::
+ * [[OutputWriter]] is used together with [[FSBasedRelation]] for
persisting rows to the
+ * underlying file system. An [[OutputWriter]] instance is created when a
new output file is
+ * opened. This instance is used to persist rows to this single output
file.
+ */
+@Experimental
+trait OutputWriter {
+ /**
+ * Persists a single row. Invoked on the executor side.
+ */
+ def write(row: Row): Unit
--- End diff --
what's in this row -- does it include the partitioning column(s)?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
