Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/20894#discussion_r176946115
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVOptions.scala
---
@@ -150,6 +150,12 @@ class CSVOptions(
val isCommentSet = this.comment != '\u0000'
+ /**
+ * The option enables checks of headers in csv files. In particular,
column names
+ * are matched to field names of provided schema.
+ */
+ val checkHeader = getBool("checkHeader", true)
--- End diff --
Since the default is true, will it break the current app? This is a
behavior change. We need to document it in the migration guide.
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