Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/16928#discussion_r102660065
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/UnivocityParser.scala
---
@@ -45,6 +45,14 @@ private[csv] class UnivocityParser(
// A `ValueConverter` is responsible for converting the given value to a
desired type.
private type ValueConverter = String => Any
+ private val corruptFieldIndex =
schema.getFieldIndex(options.columnNameOfCorruptRecord)
+ corruptFieldIndex.foreach { corrFieldIndex =>
+ require(schema(corrFieldIndex).dataType == StringType)
+ require(schema(corrFieldIndex).nullable)
+ }
+
+ private val dataSchema = StructType(schema.filter(_.name !=
options.columnNameOfCorruptRecord))
--- End diff --
I just realised now we only use the length of `dataSchema` now. Could we
just use the length if more commits should be pushed?
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