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Date: Tue, 8 Sep 2009 07:54:57 -0700 (PDT)
From: "Knut Anders Hatlen (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Resolved: (DERBY-4284) All Columns become Nullable when
 Using left join
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     [ https://issues.apache.org/jira/browse/DERBY-4284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen resolved DERBY-4284.
---------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.5.3.1

Merged to the 10.5 branch and committed revision 812536.

> 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
>            Assignee: Knut Anders Hatlen
>             Fix For: 10.5.3.1, 10.6.0.0
>
>         Attachments: derby-4284-1a.diff, derby-4284-1b.diff, derby-4284-1b.stat, derby-4284-1c.diff, derby-4284-1c.stat, derby-4284-1d.diff, 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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