From: | Jeff Boes <jboes(at)qtm(dot)net> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | How to recognize trigger-inserted rows? |
Date: | 2004-10-26 16:27:43 |
Message-ID: | 3Wufd.57556$CT6.24544@sam.nntpserver.com |
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Thread: | |
Lists: | pgsql-sql |
I have a table with an INSERT/UPDATE/DELETE statement trigger. The
trigger's action is to insert "jobs" into a queue noting that the table
has changed.
A number of other tables have FK relationships with this table, and they
have their own statement triggers that fire on DELETE.
When I delete a number of rows from the first table, the cascading
deletes into the other tables generate a rather large number of
trigger-fires, so I end up with way too many rows in the queue-table.
What I would like to do is, within the transaction doing the top-level
delete, examine the queue-table for duplicate rows and remove those,
since they are extraneous.
Ideally I would look for rows that have the same transaction ID, but I'm
having trouble determining what the current ID is. I'm using Pg 7.4.
--
(Posted from an account used as a SPAM dump. If you really want to get
in touch with me, dump the 'jboes' and substitute 'mur'.)
________
Jeffery Boes <>< jboes(at)qtm(dot)net
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