[
https://issues.apache.org/jira/browse/HIVE-20917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17896688#comment-17896688
]
Denys Kuzmenko commented on HIVE-20917:
---------------------------------------
Merged to master
> 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
> Assignee: zongyu wu
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h
> 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)
