Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18865#discussion_r136708174
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JsonFileFormat.scala
---
@@ -114,6 +114,17 @@ class JsonFileFormat extends TextBasedFileFormat with
DataSourceRegister {
}
(file: PartitionedFile) => {
+ if (actualSchema.isEmpty && requiredSchema.length == 1 &&
+ requiredSchema.head.name ==
parsedOptions.columnNameOfCorruptRecord) {
+ throw new AnalysisException(
+ s"""
+ |'${parsedOptions.columnNameOfCorruptRecord}' must be
selected along with input schema.
+ |If you want to select corrupt records only, cache DataFrame
before executing queries.
--- End diff --
`cache DataFrame` -> `cache or save the Dataset`
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