Обсуждение: Rules/Triggers executio order
I have a partitioned table to which I route data using a trigger.
I am changing it to use a set of rules which executes "INSTEAD" on insert.
The parent table currently has a trigger.
The system is a live system. I would prefer to not have to suspend the data flow.
If I create the rules, and given the fact that they execute "INSTEAD" of the insertion into the parent table, will the trigger still execute.
I will be removing the trigger immediately after the creation of the rules, but just want to be safe and make sure I get no duplicate entries.
Thanks in advance.
On Wed, Oct 18, 2006 at 06:42:21PM -0600, Benjamin Krajmalnik wrote: > I have a partitioned table to which I route data using a trigger. > I am changing it to use a set of rules which executes "INSTEAD" on > insert. > The parent table currently has a trigger. > > The system is a live system. I would prefer to not have to suspend the > data flow. > If I create the rules, and given the fact that they execute "INSTEAD" of > the insertion into the parent table, will the trigger still execute. > I will be removing the trigger immediately after the creation of the > rules, but just want to be safe and make sure I get no duplicate > entries. An INSTEAD OF rule replaces the query that you originally had with the one re-written by the rule, so no, the triggers shouldn't fire. But you should test to make sure. -- Jim Nasby jim@nasby.net EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)