Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/20894#discussion_r188685502 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVOptions.scala --- @@ -153,6 +153,12 @@ class CSVOptions( val samplingRatio = parameters.get("samplingRatio").map(_.toDouble).getOrElse(1.0) + /** + * Forcibly apply the specified or inferred schema to datasource files. + * If the option is enabled, headers of CSV files will be ignored. + */ + val enforceSchema = getBool("enforceSchema", true) --- End diff -- `enforceSchema` is from Reynold. I am also fine about the name. This name can be applied to the other data sources later.
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