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https://issues.apache.org/jira/browse/FLINK-30030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637203#comment-17637203
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Jing Zhang commented on FLINK-30030:
------------------------------------

[~luoyuxia] Thanks for open this issue.
We also received some flink batch user's complain, they said if they run the 
following query multiple times, they would got wrong result.
{code:java}
// SQL
insert
  overwrite table `db.tb` partition(p_date)
select ** {code}

> Unexpected behavior for overwrite in Hive dialect
> -------------------------------------------------
>
>                 Key: FLINK-30030
>                 URL: https://issues.apache.org/jira/browse/FLINK-30030
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Hive
>    Affects Versions: 1.15.0
>            Reporter: luoyuxia
>            Priority: Major
>              Labels: pull-request-available
>
> When overwrite a table in hive dialect, it might not overwrite but to append.
> It can reproduce using the following sql:
> {code:java}
> insert into table `db.tab` values (1, 2) {code}
> only happen when the table is encapsulated by backquote and the table contain 
> two splits with ".".
>  
> Just find the behavior in hive is also incorrect as reported in HIVE-26741.
> Let'us keep to see what's the expected behavior.



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