You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/10/31 21:23:00 UTC

[jira] [Updated] (HIVE-20917) OpenCSVSerde quotes all columns

     [ https://issues.apache.org/jira/browse/HIVE-20917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HIVE-20917:
----------------------------------
    Labels: pull-request-available  (was: )

> OpenCSVSerde quotes all columns
> -------------------------------
>
>                 Key: HIVE-20917
>                 URL: https://issues.apache.org/jira/browse/HIVE-20917
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>            Reporter: nicolas paris
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The OpenCSVSerde produces a CSV with all its columns quoted 
> no matter of they type or if the string columns contain a separator or not.
>  
> The problem is some readers (such postgresql) are not compatible with
> such CSV, in particular when bulk loading them thought COPY statement.
>  
> I propose a new CsvSerde, based on a Univocity Parser (wich is used by Apache Spark)
> that has been described a 2 times faster thant OpenCSV. [https://github.com/uniVocity/csv-parsers-comparison] . This new CsvSerde whould only quote columns when needed.
>  
> Regards,



--
This message was sent by Atlassian Jira
(v8.20.10#820010)