That depends on your application's requirements. If a transaction on table X fails, do you still want the history (noting the failure)? If so, go with embedding the code in your script. If you only want history for successful transactions, a trigger will take care of that for you automatically.
Bob Lunney
--- On Mon, 8/23/10, DM <dm.aeqa@gmail.com> wrote:
From: DM <dm.aeqa@gmail.com> Subject: [PERFORM] Triggers or code? To: pgsql-performance@postgresql.org Date: Monday, August 23, 2010, 2:42 PM
Hello There,
I have a table x and a history table x_hist, whats the best way to update the history table.
should i need to use triggers or embed a code in my script to update the history table?
what is the performance impact of a trigger versus embedding the code in the script?