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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/08/14 17:19:00 UTC

[jira] [Updated] (IMPALA-1652) Fix CHAR datatype: Incorrect results with basic predicate on CHAR typed column.

     [ https://issues.apache.org/jira/browse/IMPALA-1652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-1652:
----------------------------------
    Attachment: 8be18d4.diff

> Fix CHAR datatype: Incorrect results with basic predicate on CHAR typed column.
> -------------------------------------------------------------------------------
>
>                 Key: IMPALA-1652
>                 URL: https://issues.apache.org/jira/browse/IMPALA-1652
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 2.1, Impala 2.3.0
>            Reporter: Alexander Behm
>            Priority: Major
>              Labels: correctness, downgraded, usability
>         Attachments: 8be18d4.diff
>
>
> Repro:
> {code}
> create table foo(col1 char(10));
> insert into foo values (cast('test1' as char(10)));
> select * from foo where col1 = 'test1'; <-- returns an empty result set
> select * from foo where col1 = cast('test1' as char(10)); <-- correctly returns 1 row
> {code}



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