Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/4294#discussion_r23978373
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala ---
@@ -145,6 +153,11 @@ abstract class PrunedFilteredScan extends BaseRelation
{
* for experimentation.
*/
@Experimental
-abstract class CatalystScan extends BaseRelation {
+trait CatalystScan extends BaseRelation {
def buildScan(requiredColumns: Seq[Attribute], filters:
Seq[Expression]): RDD[Row]
}
+
+@DeveloperApi
+trait WritableRelation extends BaseRelation {
+ def write(data: DataFrame, overwrite: Boolean): Unit
--- End diff --
change it to insert
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