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https://issues.apache.org/jira/browse/HIVE-11129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14615066#comment-14615066
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Aihua Xu commented on HIVE-11129:
---------------------------------
That should be the case. While seems like the warning may be too restrict since
converting between UTF-8, UTF-16 and UTF-32 should cause no loss. let me handle
that case.
> Issue a warning when copied from UTF-8 to ISO 8859-1
> ----------------------------------------------------
>
> Key: HIVE-11129
> URL: https://issues.apache.org/jira/browse/HIVE-11129
> Project: Hive
> Issue Type: Bug
> Components: File Formats
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Fix For: 2.0.0
>
> Attachments: HIVE-11129.patch
>
>
> Copying data from a table using UTF-8 encoding to one using ISO 8859-1
> encoding causes data corruption without warning.
> {noformat}
> CREATE TABLE person_utf8 (name STRING)
> ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
> WITH SERDEPROPERTIES ('serialization.encoding'='UTF8');
> {noformat}
> Put the following data in the table:
> Müller,Thomas
> Jørgensen,Jørgen
> Vega,Andrés
> 中村,浩人
> אביה,נועם
> {noformat}
> CREATE TABLE person_2 ROW FORMAT SERDE
> 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
> WITH SERDEPROPERTIES ('serialization.encoding'='ISO8859_1')
> AS select * from person_utf8;
> {noformat}
> expected to get mangled data but we should give a warning.
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