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From
"Zeller, Raymond"
Date:
How can I add an on delete cascade trigger  to an existing table column?
The help seems to say that alter table could be used something like:
 
ALTER TABLE test ADD ON COLUMN "id" ON DELETE CASCADE;
 
Except I don't want to add an id column, it already exists with on update
cascade trigger. I just want it to delete itself when its referencing id disappears.
 
thanks,
Ray Zeller