Re: Rule

Hello Tom,

Tuesday, November 20, 2001, 5:24:29 PM, you wrote:

TL> Andriy Pyrozhenko <andriy.pyrozhenko@vanjaonline.com> writes:
>>   CREATE RULE del_jobs_del_activity AS ON DELETE TO jobs DO DELETE FROM activities WHERE job_id = OLD.job_id;

>>   DELETE FROM jobs WHERE job_id IN (SELECT DISTINCT job_id FROM
>>   activities WHERE load_no = 123)
>>   This query does not delete the record from jobs but delete the
>>   record by rule.

TL> I think you're going to need to use a trigger, instead.  The
TL> rule-generated query runs first, and then by the time you get to the
TL> actual DELETE FROM jobs, the SELECT DISTINCT subquery doesn't find any
TL> rows ...

TL>                         regards, tom lane
   How can I do it. I use PostgreSQL 7.1.3

Best regards,Andriy                            mailto:andriy.pyrozhenko@vanjaonline.com