Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7480#discussion_r35156499
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/rowFormatConverters.scala
---
@@ -29,6 +29,9 @@ import org.apache.spark.sql.catalyst.rules.Rule
*/
@DeveloperApi
case class ConvertToUnsafe(child: SparkPlan) extends UnaryNode {
+
+ require(UnsafeProjection.canSupport(child.schema), s"Cannot convert
${child.schema} to Unsafe")
--- End diff --
This change looks good to me; thanks for suggesting this.
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