Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21137#discussion_r183671370
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
---
@@ -1267,12 +1274,12 @@ case class ExternalMapToCatalyst private(
val entry = iter.next()
val (key, value) = (entry.getKey, entry.getValue)
keys(i) = if (key != null) {
- keyConverter.eval(InternalRow.fromSeq(key :: Nil))
+ keyConverter.eval(rowWrapper(key))
} else {
throw new RuntimeException("Cannot use null as map key!")
}
values(i) = if (value != null) {
- valueConverter.eval(InternalRow.fromSeq(value :: Nil))
+ valueConverter.eval(rowWrapper(value))
--- End diff --
ok
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