[
https://issues.apache.org/jira/browse/HIVE-12742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070486#comment-15070486
]
Gopal V commented on HIVE-12742:
--------------------------------
The rewrite is important for a number of tableau workloads. I would rewrite it
as {{NOT(NVL(val, false))}}
> NULL table comparison within CASE does not work as previous hive versions
> -------------------------------------------------------------------------
>
> Key: HIVE-12742
> URL: https://issues.apache.org/jira/browse/HIVE-12742
> Project: Hive
> Issue Type: Bug
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-12742.01.patch
>
>
> drop table test_1;
> create table test_1 (id int, id2 int);
> insert into table test_1 values (123, NULL);
> SELECT cast(CASE WHEN id = id2 THEN FALSE ELSE TRUE END AS BOOLEAN) AS b
> FROM test_1;
> --NULL
> But the output should be true (confirmed with postgres.)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
