> is there any good trigger tutorial on the net ??
http://www.postgresql.org/docs/7.3/static/triggers.htmlhttp://www.postgresql.org/docs/7.3/static/plpgsql-trigger.html#AEN36127http://www.postgresql.org/docs/7.3/static/rules-triggers.htmlhttp://www.postgresql.org/docs/aw_pgsql_book/node162.htmlhttp://www.commandprompt.com/ppbook/index.lxp?lxpwrap=x20655%2ehtm
Kaarel