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https://issues.apache.org/jira/browse/SPARK-25660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-25660.
-----------------------------
Resolution: Fixed
Assignee: Maxim Gekk
Fix Version/s: 2.4.0
> Impossible to use the backward slash as the CSV fields delimiter
> -----------------------------------------------------------------
>
> Key: SPARK-25660
> URL: https://issues.apache.org/jira/browse/SPARK-25660
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Minor
> Fix For: 2.4.0
>
>
> If fields in CSV input are delimited by *'\'*, for example:
> {code}
> 123\4\5\1\Q\\P\P\2321213\1\\\P\\F
> {code}
> reading it by the code:
> {code:python}
> df =
> spark.read.format('csv').option("header","false").options(delimiter='\\').load("file:///file.csv")
> {code}
> causes the exception:
> {code}
> String index out of range: 1
> java.lang.StringIndexOutOfBoundsException: String index out of range: 1
> at java.lang.String.charAt(String.java:658)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVUtils$.toChar(CSVUtils.scala:101)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVOptions.<init>(CSVOptions.scala:86)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVOptions.<init>(CSVOptions.scala:41)
> at org.apache.spark.sql.DataFrameReader.csv(DataFrameReader.scala:488)
> {code}
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