Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12817#discussion_r61691183
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala ---
@@ -393,6 +393,45 @@ class DataFrameReader private[sql](sparkSession:
SparkSession) extends Logging {
* This function goes through the input once to determine the input
schema. To avoid going
* through the entire data once, specify the schema explicitly using
[[schema]].
*
+ * You can set the following CSV-specific options to deal with CSV files:
+ * <li>`delimiter` (default `,`): sets the single character as a
delimiter for each
+ * field and value.</li>
+ * <li>`charset` (default `UTF-8`): decodes the CSV files by the given
encoding
--- End diff --
encoding is the main one
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