Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21439#discussion_r204226404
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/json/JacksonParser.scala
---
@@ -61,6 +61,7 @@ class JacksonParser(
dt match {
case st: StructType => makeStructRootConverter(st)
case mt: MapType => makeMapRootConverter(mt)
+ case at: ArrayType => makeArrayRootConverter(at)
--- End diff --
This change accepts the json datasource form that the master can't parse?
If so, I think we need tests in `JsonSuite`, too. cc: @HyukjinKwon
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