Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/20068#discussion_r158616740
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVOptions.scala
---
@@ -152,7 +152,7 @@ class CSVOptions(
writerSettings.setIgnoreLeadingWhitespaces(ignoreLeadingWhiteSpaceFlagInWrite)
writerSettings.setIgnoreTrailingWhitespaces(ignoreTrailingWhiteSpaceFlagInWrite)
writerSettings.setNullValue(nullValue)
- writerSettings.setEmptyValue(nullValue)
+ writerSettings.setEmptyValue("")
--- End diff --
Could we leave some comments here and update the PR description too?
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