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From "angerszhu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-28551) CTAS SQL with LOCATION properties won't check location path, cause data under this location lose
Date Mon, 29 Jul 2019 11:19:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-28551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

angerszhu updated SPARK-28551:
------------------------------
    Description: 
When we run SQL like 
{code:java}
CRETE TABLE TBL 
LOCATION 'PATH_URI'
AS
SELECT QUERY{code}
It won't check PATH_URI status, if there is some data under this path, it will just overwrite
this path.

If user careless write a path with important data store under the path, it will be a disaster。 

Thought about add a checker in Catalyst for this situation.

> CTAS SQL with LOCATION properties won't check location path, cause data under this location
lose
> ------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-28551
>                 URL: https://issues.apache.org/jira/browse/SPARK-28551
>             Project: Spark
>          Issue Type: Wish
>          Components: SQL
>    Affects Versions: 2.4.0, 3.0.0
>            Reporter: angerszhu
>            Priority: Major
>              Labels: SQL
>
> When we run SQL like 
> {code:java}
> CRETE TABLE TBL 
> LOCATION 'PATH_URI'
> AS
> SELECT QUERY{code}
> It won't check PATH_URI status, if there is some data under this path, it will just overwrite
this path.
> If user careless write a path with important data store under the path, it will be a disaster。 
> Thought about add a checker in Catalyst for this situation.



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