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Posted to issues@phoenix.apache.org by "Yunbo Fan (Jira)" <ji...@apache.org> on 2023/05/19 07:30:00 UTC
[jira] [Commented] (PHOENIX-6960) Scan range is wrong when query desc columns
[ https://issues.apache.org/jira/browse/PHOENIX-6960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17724166#comment-17724166 ]
Yunbo Fan commented on PHOENIX-6960:
------------------------------------
as [~stoty] reported [PHOENIX-6916] Cannot handle ranges where start is a prefix of end for desc columns - ASF JIRA (apache.org)
Not work after apply the patch.
> Scan range is wrong when query desc columns
> -------------------------------------------
>
> Key: PHOENIX-6960
> URL: https://issues.apache.org/jira/browse/PHOENIX-6960
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 5.1.3
> Reporter: Yunbo Fan
> Priority: Critical
>
> Ways to reproduce
> {code}
> 0: jdbc:phoenix:> create table sts(id integer primary key, name varchar, type integer, status integer);
> No rows affected (1.259 seconds)
> 0: jdbc:phoenix:> create index sts_name_desc on sts(status, type desc, name desc);
> ^[[ANo rows affected (6.376 seconds)
> 0: jdbc:phoenix:> create index sts_name_asc on sts(type desc, name) include (status);
> No rows affected (6.377 seconds)
> 0: jdbc:phoenix:> upsert into sts values(1, 'test10.txt', 1, 1);
> 1 row affected (0.026 seconds)
> 0: jdbc:phoenix:>
> 0: jdbc:phoenix:>
> 0: jdbc:phoenix:> explain select * from sts where type = 1 and name like 'test10%';
> +------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> | PLAN | EST_BYTES_READ | EST_ROWS_READ | EST_INFO_TS |
> +------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> | CLIENT 1-CHUNK PARALLEL 1-WAY ROUND ROBIN RANGE SCAN OVER STS_NAME_ASC [~1,'test10'] - [~1,'test11'] | null | null | null |
> +------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> 1 row selected (0.023 seconds)
> 0: jdbc:phoenix:> select * from sts where type = 1 and name like 'test10%';
> +----+------------+------+--------+
> | ID | NAME | TYPE | STATUS |
> +----+------------+------+--------+
> | 1 | test10.txt | 1 | 1 |
> +----+------------+------+--------+
> 1 row selected (0.033 seconds)
> 0: jdbc:phoenix:> explain select * from sts where status = 1 and type = 1 and name like 'test10%';
> +-------------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> | PLAN | EST_BYTES_READ | EST_ROWS_READ | EST_INFO_TS |
> +-------------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> | CLIENT 1-CHUNK PARALLEL 1-WAY ROUND ROBIN RANGE SCAN OVER STS_NAME_DESC [1,~1,~'test10'] - [1,~1,~'test1/'] | null | null | null |
> | SERVER FILTER BY FIRST KEY ONLY AND "NAME" LIKE 'test10%' | null | null | null |
> +-------------------------------------------------------------------------------------------------------------+----------------+---------------+-------------+
> 2 rows selected (0.022 seconds)
> 0: jdbc:phoenix:> select * from sts where status = 1 and type = 1 and name like 'test10%';
> +----+------+------+--------+
> | ID | NAME | TYPE | STATUS |
> +----+------+------+--------+
> +----+------+------+--------+
> No rows selected (0.04 seconds)
> {code}
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