Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22654#discussion_r223754099
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/csv/CSVSuite.scala
---
@@ -1826,4 +1826,13 @@ class CSVSuite extends QueryTest with
SharedSQLContext with SQLTestUtils with Te
val df = spark.read.option("enforceSchema", false).csv(input)
checkAnswer(df, Row("1", "2"))
}
+
+ test("using the backward slash as the delimiter") {
+ val input = Seq("""abc\1""").toDS()
--- End diff --
> Or is the point that delimiting takes precedence?
Right, if an user specified `\` as a delimiter, CSV parser considers it as
the delimiter first of all. We can see that in the main loop that delimiters
are handled before escape characters:
https://github.com/uniVocity/univocity-parsers/blob/6746adc2ddb420ebba7441339887e4bbc35cf087/src/main/java/com/univocity/parsers/csv/CsvParser.java#L115
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