[jira] [Updated] (PHOENIX-3014) SELECT DISTINCT pk ORDER BY pk DESC gives the wrong results with salted tables

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-3014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated PHOENIX-3014:
-----------------------------------
    Summary: SELECT DISTINCT pk ORDER BY pk DESC gives the wrong results with salted tables  (was: SELECT DISTINCT pk ORDER BY pk DESC gives the wrong results)

> SELECT DISTINCT pk ORDER BY pk DESC gives the wrong results with salted tables
> ------------------------------------------------------------------------------
>
>                 Key: PHOENIX-3014
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3014
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>             Fix For: 4.8.0
>
>         Attachments: PHOENIX-3014_untested.patch
>
>
> {code}
> create table T(pk1 varchar not null, pk2 varchar not null, constraint pk primary key(pk1, pk2)) SALT_BUCKETS=8;
> upsert into T values('1','1');
> upsert into T values('1','2');
> upsert into T values('2','1');
> select /*+ RANGE_SCAN */ distinct(pk1) from T order by pk1 desc;
> +------+
> | PK1  |
> +------+
> | 1    |
> | 2    |
> | 1    |
> select distinct(pk1) from T order by pk1 desc;
> +------+
> | PK1  |
> +------+
> | 1    |
> | 2    |
> | 1    |
> +------+
> {code}



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