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Date: Tue, 19 Jul 2016 06:57:20 +0000 (UTC)
From: "Hyukjin Kwon (JIRA)" <jira@apache.org>
To: issues@spark.apache.org
Message-ID: <JIRA.12983231.1466920448000.69109.1468911440755@Atlassian.JIRA>
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Subject: [jira] [Comment Edited] (SPARK-16216) CSV data source does not
 write date and timestamp correctly
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archived-at: Tue, 19 Jul 2016 06:57:22 -0000


    [ https://issues.apache.org/jira/browse/SPARK-16216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383680#comment-15383680 ] 

Hyukjin Kwon edited comment on SPARK-16216 at 7/19/16 6:56 AM:
---------------------------------------------------------------

I can close existing PR and open another to match both (without supporting {{dateFormat}} for writing) for simplicity.

Actually, initial proposal was just for CSV to match JSON and to add a support {{dateFormat}} for writing as well but it become kind of bigger.

Just FYI, I had a talk about him, here https://github.com/apache/spark/pull/13912#issuecomment-228586981

I don't have strong preference. I will follow your decision! 


was (Author: hyukjin.kwon):
I can close existing PR and open another to match both (without supporting {{dateFormat}} for writing) for simplicity.

Actually, initial proposal was just to add a support {{dateFormat}} for writing as well but it become kind of bigger.

Just FYI, I had a talk about him, here https://github.com/apache/spark/pull/13912#issuecomment-228586981

I don't have strong preference. I will follow your decision! 

> CSV data source does not write date and timestamp correctly
> -----------------------------------------------------------
>
>                 Key: SPARK-16216
>                 URL: https://issues.apache.org/jira/browse/SPARK-16216
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Hyukjin Kwon
>            Priority: Minor
>
> Currently, CSV data source write {{DateType}} and {{TimestampType}} as below:
> {code}
> +----------------+
> |            date|
> +----------------+
> |1440637200000000|
> |1414459800000000|
> |1454040000000000|
> +----------------+
> {code}
> It would be nicer if it write dates and timestamps as a formatted string just like JSON data sources.
> Also, CSV data source currently supports {{dateFormat}} option to read dates and timestamps in a custom format. It might be better if this option can be applied in writing as well.


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