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Posted to issues@hive.apache.org by "Steve Carlin (Jira)" <ji...@apache.org> on 2022/11/22 17:29:00 UTC
[jira] [Assigned] (HIVE-26683) Sum over window produces 0 when row contains null
[ https://issues.apache.org/jira/browse/HIVE-26683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Carlin reassigned HIVE-26683:
-----------------------------------
Assignee: Steve Carlin
> Sum over window produces 0 when row contains null
> -------------------------------------------------
>
> Key: HIVE-26683
> URL: https://issues.apache.org/jira/browse/HIVE-26683
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Ran the following sql:
>
> {code:java}
> create table sum_window_test_small (id int, tinyint_col tinyint);
> insert into sum_window_test_small values (5,5), (10, NULL), (11,1);
> select id,
> tinyint_col,
> sum(tinyint_col) over (order by id nulls last rows between 1 following and 1 following)
> from sum_window_test_small order by id;
> select id,
> tinyint_col,
> sum(tinyint_col) over (order by id nulls last rows between current row and 1 following)
> from sum_window_test_small order by id;
> {code}
> The result is
> {code:java}
> +-----+--------------+---------------+
> | id | tinyint_col | sum_window_0 |
> +-----+--------------+---------------+
> | 5 | 5 | 0 |
> | 10 | NULL | 1 |
> | 11 | 1 | NULL |
> +-----+--------------+---------------+{code}
> The first row should have the sum as NULL
>
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