Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/18865#discussion_r132878430
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JsonFileFormat.scala
---
@@ -114,7 +114,16 @@ class JsonFileFormat extends TextBasedFileFormat with
DataSourceRegister {
}
(file: PartitionedFile) => {
- val parser = new JacksonParser(actualSchema, parsedOptions)
+ // SPARK-21610: when the `requiredSchema` only contains
`_corrupt_record`,
--- End diff --
@viirya and @cloud-fan, How about adding few notes that implies
`columnNameOfCorruptRecord` for both CSV and JSON is currently incomplete like
union type in Hive for now?
I can't think of a better way than parsing / converting everything always
but I guess of course this is not what we want for now. I also am aware of few
such issues about this.
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