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https://issues.apache.org/jira/browse/HIVE-8615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14186135#comment-14186135
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Thejas M Nair commented on HIVE-8615:
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On second thoughts, from a user perspective, it would be preferrable to not
have the applications consuming data break at all. ie, Keep "tsv" and "csv" as
the deprecated formats, call the new format "tsv2" and "csv2" . Also, give a
deprecation warning when "tsv" and "csv" are used.
> beeline csv,tsv outputformat needs backward compatibility mode
> --------------------------------------------------------------
>
> Key: HIVE-8615
> URL: https://issues.apache.org/jira/browse/HIVE-8615
> Project: Hive
> Issue Type: Bug
> Components: Beeline
> Affects Versions: 0.14.0
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Priority: Critical
> Fix For: 0.14.0
>
>
> Changes in HIVE-7390 break backward compatibility for beeline csv and tsv
> formats.
> This can cause problems for users upgrading to hive 0.14, if they have code
> for parsing the old output format. Instead of removing the old format in this
> release, we should consider it deprecated and support it in a few releases
> before removing it completely.
> Incompatible Changes in the tsv and csv formats-
> - Old format quoted every field. New format quotes only fields that contain a
> delimiter or the quoteing char.
> - Old format quoted using single quotes, new format quotes using double quotes
> - Old format didn't escape quotes in a field (a bug). New format does escape
> the quotes
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