Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/8903#discussion_r40386778
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala ---
@@ -225,14 +225,26 @@ abstract class BaseRelation {
* java.lang.String -> UTF8String
* java.lang.Decimal -> Decimal
*
- * If `needConversion` is `false`, buildScan() should return an [[RDD]]
of [[InternalRow]]
*
* Note: The internal representation is not stable across releases and
thus data sources outside
* of Spark SQL should leave this as true.
*
- * @since 1.4.0
+ * @since 1.5.0
+ */
+ def inputNeedConversion: Boolean = true
+
+ /**
+ * Whether does it need to convert scan results to [[Row]] instead of
[[InternalRow]].
--- End diff --
`Indicates if the results of a scan need to be converted from a [[Row]] to
an [[InternalRow]]`
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