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Posted to dev@phoenix.apache.org by "chenglei (Jira)" <ji...@apache.org> on 2022/09/29 11:56:00 UTC

[jira] [Assigned] (PHOENIX-6798) Eliminate unnecessary reversed scan

     [ https://issues.apache.org/jira/browse/PHOENIX-6798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

chenglei reassigned PHOENIX-6798:
---------------------------------

    Assignee: chenglei

> Eliminate unnecessary reversed scan
> -----------------------------------
>
>                 Key: PHOENIX-6798
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6798
>             Project: Phoenix
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 5.1.2
>            Reporter: chenglei
>            Assignee: chenglei
>            Priority: Major
>
> Consider following table:
> {code}
>   create table test_table  
>   (group_id integer not null, 
>     keyword varchar not null, 
>     cost integer, 
>     CONSTRAINT TEST_PK PRIMARY KEY (group_id,keyword))
> {code}
> when we query the sql :
> {code}
>    select keyword,sum(cost) from test group by keyword order by keyword desc
> {code}



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