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From "Jeremy Boynes (JIRA)" <derby-...@db.apache.org>
Subject [jira] Resolved: (DERBY-158) PRIMARY KEY does not imply NOT NULL
Date Tue, 08 Mar 2005 21:26:58 GMT
     [ http://issues.apache.org/jira/browse/DERBY-158?page=history ]
     
Jeremy Boynes resolved DERBY-158:
---------------------------------

     Resolution: Fixed
    Fix Version: 10.1.0.0

URL: http://svn.apache.org/viewcvs?view=rev&rev=156570
Log:
Fix for DERBY-158 PRIMARY KEY does not imply NOT NULL
Columns specified in a PRIMARY KEY constraint in CREATE TABLE 
are implicitly set to NOT NULL per the SQL spec. 

If a PRIMARY KEY constraint is added using ALTER TABLE then all
columns must also be NOT NULL. Similarly, columns
specified in a UNIQUE constraint must still be explictly NOT NULL.

Modified:
    incubator/derby/code/trunk/java/engine/org/apache/derby/impl/sql/compile/TableElementList.java
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/master/db2Compatibility.out
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/master/nulls.out
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/master/primarykey.out
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/tests/lang/db2Compatibility.sql
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/tests/lang/nulls.sql
    incubator/derby/code/trunk/java/testing/org/apache/derbyTesting/functionTests/tests/lang/primarykey.sql

> PRIMARY KEY does not imply NOT NULL
> -----------------------------------
>
>          Key: DERBY-158
>          URL: http://issues.apache.org/jira/browse/DERBY-158
>      Project: Derby
>         Type: Bug
>   Components: SQL
>     Reporter: Bernt M. Johnsen
>     Assignee: Jeremy Boynes
>     Priority: Minor
>      Fix For: 10.1.0.0
>  Attachments: derby-158-1.patch, derby-158-2.patch
>
> PRIMARY KEY does not imply NOT NULL. Derby issues error message:
> ij> create table tab (i integer primary key);
> ERROR 42831: 'I' cannot be a column of a primary key or unique key because it can contain
null values.
> This is neither compliant with SQL-92 nor with SQL-99 (Feature E141-08, I think).

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