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https://issues.apache.org/jira/browse/IMPALA-5569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17361088#comment-17361088
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ASF subversion and git services commented on IMPALA-5569:
---------------------------------------------------------
Commit a4373983df279eebd519cfb78896ccef0ae4e81c in impala's branch
refs/heads/master from Amogh Margoor
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=a437398 ]
IMPALA-5569: Add statement ALTER TABLE UNSET TBLPROPERTIES/SERDEPROPERTIES
This patch adds ability to unset or delete table properties or serde
properties for a table. It supports 'IF EXISTS' clause in case users
are not sure if property being unset exists. Without 'IF EXISTS',
trying to unset property that doesn't exist will fail.
Tests:
1. Added Unit tests and end-to-end tests
2. Covered tables of different storage type like Kudu,
Iceberg, HDFS table.
Change-Id: Ife4f6561dcdcd20c76eb299c6661c778e342509d
Reviewed-on: http://gerrit.cloudera.org:8080/17530
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Implement UNSET TBLPROPERTIES for ALTER TABLE
> ---------------------------------------------
>
> Key: IMPALA-5569
> URL: https://issues.apache.org/jira/browse/IMPALA-5569
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Affects Versions: Impala 2.9.0
> Reporter: Nándor Kollár
> Assignee: Amogh Margoor
> Priority: Minor
>
> Right now, I can set table properties via Impala client, but I couldn't find
> a way to unset them. I can set them to empty string, but I've to use Hive CLI
> to remove the key-value par.
> It would be nice to extend ALTER TABLE with UNSET clause to be able to unset
> table properties.
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