Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/21667#discussion_r200622296
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JsonFileFormat.scala
---
@@ -148,6 +144,23 @@ class JsonFileFormat extends TextBasedFileFormat with
DataSourceRegister {
override def hashCode(): Int = getClass.hashCode()
override def equals(other: Any): Boolean =
other.isInstanceOf[JsonFileFormat]
+
+ override def supportDataType(dataType: DataType, isReadPath: Boolean):
Boolean = dataType match {
--- End diff --
Yea, supported types are very specific to datasource's implementation.
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