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From "Jack Klebanoff (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-156) Delete with alias on column fails
Date Wed, 02 Mar 2005 02:45:48 GMT
     [ http://issues.apache.org/jira/browse/DERBY-156?page=comments#action_60015 ]
     
Jack Klebanoff commented on DERBY-156:
--------------------------------------

The Derby reference manual does not document the use of correlation names in DELETE statements,
so this is a feature request not a bug.

The SQL 2003 spec does allow correlation names in delete statements, so this is a very reasonable
request.

SQL allows an optional 'AS' in front of the correlation name:

<delete statement: searched> ::=
DELETE FROM <target table> [ [ AS ] <correlation name> ]
[ WHERE <search condition> ]

If we do add this to Derby we should allow the optional "AS".

> Delete with alias on column fails
> ---------------------------------
>
>          Key: DERBY-156
>          URL: http://issues.apache.org/jira/browse/DERBY-156
>      Project: Derby
>         Type: Bug
>     Reporter: Bernd Ruehlicke
>     Priority: Critical

>
> DELETE FROM MY_TABLE x WHERE x.MY_COLUMN='value';
> fails with 
> ERROR 42X01: Syntax error: Encountered "x" at line 1, column 24
> This is the core of the problem. I found it form a more complicated statement but it
cooks down to that this should work but dose not.
> B-)

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