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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4284) All Columns become Nullable when Using left join
Date Fri, 03 Jul 2009 14:24:47 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dag H. Wanvik updated DERBY-4284:
---------------------------------

    Urgency: Normal  (was: Urgent)

Triaged for 10.5.2, checking "repro attached" and setting "normal" urgency.

> All Columns become Nullable when Using left join
> ------------------------------------------------
>
>                 Key: DERBY-4284
>                 URL: https://issues.apache.org/jira/browse/DERBY-4284
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, SQL
>    Affects Versions: 10.5.1.1
>         Environment: Microsoft Windows XP SP3, Sun JDK 6 Update 14
>            Reporter: Chua Chee Seng
>         Attachments: Main.java
>
>
> Consider following:-
> create table person (
>   id varchar(20) not null,
>   name varchar(100) not null
> );
> create table car (
>   id varchar(20) not null,
>   person_id varchar(20) not null,
>   model varchar(100) not null,
>   plat_no varchar(100) not null
> );
> When select :-
> select
> p.name,
> c.model,
> c.plat_no
> from person p
> left join car c on (p.id = c.person_id);
> From the ResultSet, get the ResultSetMetaData and inspect each column's isNullable()
value, which is always = 1 (always nullable).  Expected : column 'p.name' isNullable = 0 (not
nullable), but I get 'p.name' isNullable = 1 (nullable)

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