In any case, it seems that the current behavior is not documented sufficiently.

Koert Kuipers wrote:
i can see how unquoted csv would work if you escape delimiters, but i have 
never seen that in practice.

On Thu, Oct 27, 2016 at 2:03 PM, Jain, Nishit <nja...@underarmour.com 
<mailto:nja...@underarmour.com>> wrote:

    I’d think quoting is only necessary if you are not escaping delimiters in 
data. But we can only share our opinions. It would be good to see something 
documented.
    This may be the cause of the issue?: 
https://issues.apache.org/jira/browse/CSV-135 
<https://issues.apache.org/jira/browse/CSV-135>

    From: Koert Kuipers <ko...@tresata.com <mailto:ko...@tresata.com>>
    Date: Thursday, October 27, 2016 at 12:49 PM

    To: "Jain, Nishit" <nja...@underarmour.com <mailto:nja...@underarmour.com>>
    Cc: "user@spark.apache.org <mailto:user@spark.apache.org>" <user@spark.apache.org 
<mailto:user@spark.apache.org>>
    Subject: Re: CSV escaping not working

    well my expectation would be that if you have delimiters in your data you 
need to quote your values. if you now have quotes without your data you need to 
escape them.

    so escaping is only necessary if quoted.

    On Thu, Oct 27, 2016 at 1:45 PM, Jain, Nishit <nja...@underarmour.com 
<mailto:nja...@underarmour.com>> wrote:

        Do you mind sharing why should escaping not work without quotes?

        From: Koert Kuipers <ko...@tresata.com <mailto:ko...@tresata.com>>
        Date: Thursday, October 27, 2016 at 12:40 PM
        To: "Jain, Nishit" <nja...@underarmour.com 
<mailto:nja...@underarmour.com>>
        Cc: "user@spark.apache.org <mailto:user@spark.apache.org>" 
<user@spark.apache.org <mailto:user@spark.apache.org>>
        Subject: Re: CSV escaping not working

        that is what i would expect: escaping only works if quoted

        On Thu, Oct 27, 2016 at 1:24 PM, Jain, Nishit <nja...@underarmour.com 
<mailto:nja...@underarmour.com>> wrote:

            Interesting finding: Escaping works if data is quoted but not 
otherwise.

            From: "Jain, Nishit" <nja...@underarmour.com 
<mailto:nja...@underarmour.com>>
            Date: Thursday, October 27, 2016 at 10:54 AM
            To: "user@spark.apache.org <mailto:user@spark.apache.org>" 
<user@spark.apache.org <mailto:user@spark.apache.org>>
            Subject: CSV escaping not working

            I am using spark-core version 2.0.1 with Scala 2.11. I have simple 
code to read a csv file which has \ escapes.

            |val myDA = spark.read .option("quote",null) .schema(mySchema) 
.csv(filePath) |

            As per documentation \ is default escape for csv reader. But it 
does not work. Spark is reading \ as part of my data. For Ex: City column in 
csv file is *north rocks\,au* . I am expecting city column should read in code 
as *northrocks,au*. But instead spark reads it as *northrocks\* and moves *au* 
to next column.

            I have tried following but did not work:

              * Explicitly defined escape .option("escape",”\\")
              * Changed escape to | or : in file and in code
              * I have tried using spark-csv library

            Any one facing same issue? Am I missing something?

            Thanks






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