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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-2223) Support DELETE that strictly returns number of rows deleted
Date Wed, 02 Sep 2015 15:47:46 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Taylor updated PHOENIX-2223:
----------------------------------
    Issue Type: Improvement  (was: Bug)

> Support DELETE that strictly returns number of rows deleted
> -----------------------------------------------------------
>
>                 Key: PHOENIX-2223
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2223
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 4.3.0
>         Environment: CDH5
>            Reporter: James Heather
>
> If you create a table with no rows in, and then issue a delete statement with a {{where
id=1}} clause, sqlline reports 1 row affected, even though no rows were actually deleted.
It doesn't seem to happen without a {{where}} clause, or with something like {{where id<=2}}.
> Some experiments:
> {code}
> 0: jdbc:phoenix:172.xx.xx.xxx> create table names (id bigint(20) primary key, name
varchar(20));
> No rows affected (1.158 seconds)
> 0: jdbc:phoenix:172.xx.xx.xxx> delete from names where id=1;
> 1 row affected (0.204 seconds)
> 0: jdbc:phoenix:172.xx.xx.xxx> 
> {code}
> and
> {code}
> 0: jdbc:phoenix:172.31.30.216> select * from names;
> +------------------------------------------+----------------------+
> |                    ID                    |         NAME         |
> +------------------------------------------+----------------------+
> +------------------------------------------+----------------------+
> No rows selected (0.538 seconds)
> 0: jdbc:phoenix:172...> delete from names;
> No rows affected (0.1 seconds)
> 0: jdbc:phoenix:172...> upsert into names (id, name) values (1, 'james');
> 1 row affected (0.064 seconds)
> 0: jdbc:phoenix:172...> upsert into names (id, name) values (2, 'helen');
> 1 row affected (0.05 seconds)
> 0: jdbc:phoenix:172...> upsert into names (id, name) values (3, 'naomi');
> 1 row affected (0.052 seconds)
> 0: jdbc:phoenix:172...> upsert into names (id, name) values (4, 'reuben');
> 1 row affected (0.053 seconds)
> 0: jdbc:phoenix:172...> delete from names where id<=2;
> 2 rows affected (0.116 seconds)
> 0: jdbc:phoenix:172...> delete from names where id<=2;
> No rows affected (0.098 seconds)
> 0: jdbc:phoenix:172...> delete from names where id=2;
> 1 row affected (0.071 seconds)
> 0: jdbc:phoenix:172...> 
> {code}



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