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Posted to derby-dev@db.apache.org by "Rick Hillegas (JIRA)" <ji...@apache.org> on 2011/05/19 18:30:47 UTC

[jira] [Created] (DERBY-5241) The = and <> operators should be supported on CLOBs.

The = and <> operators should be supported on CLOBs.
----------------------------------------------------

                 Key: DERBY-5241
                 URL: https://issues.apache.org/jira/browse/DERBY-5241
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.9.0.0
            Reporter: Rick Hillegas


According to the 2008 SQL Standard, part 2, section 4.2.1, the = and <> operators should be supported when comparing CLOBs. The following script shows this defect:

connect 'jdbc:derby:memory:db;create=true'; 

create table t( a clob, b clob );

select * from t where a = b;
select * from t where a <> b;

A partial workaround would be to cast the CLOBs as VARCHAR( 32672 ). This would work for small CLOBs.

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[jira] [Updated] (DERBY-5241) The = and <> operators should be supported on CLOBs.

Posted by "Mamta A. Satoor (Updated) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-5241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mamta A. Satoor updated DERBY-5241:
-----------------------------------

    Urgency: Normal
     Labels: derby_triage10_9  (was: )
    
> The = and <> operators should be supported on CLOBs.
> ----------------------------------------------------
>
>                 Key: DERBY-5241
>                 URL: https://issues.apache.org/jira/browse/DERBY-5241
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.9.0.0
>            Reporter: Rick Hillegas
>              Labels: derby_triage10_9
>
> According to the 2008 SQL Standard, part 2, section 4.2.1, the = and <> operators should be supported when comparing CLOBs. The following script shows this defect:
> connect 'jdbc:derby:memory:db;create=true'; 
> create table t( a clob, b clob );
> select * from t where a = b;
> select * from t where a <> b;
> A partial workaround would be to cast the CLOBs as VARCHAR( 32672 ). This would work for small CLOBs.

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