On Thu, Sep 03, 2009 at 10:52:09AM +0900, Itagaki Takahiro wrote: > Here is a patch to implement "Support triggers on columns" in our ToDo list. > > The syntax is: > CREATE TRIGGER name > BEFORE UPDATE OF col1, col12, ... > ON tbl FOR EACH ROW EXECUTE PROCEDURE func();
Kudos! > > I consulted the previous work following: > Column-level triggers (From: Greg Sabino Mullane, Date: 2005-07-04) > http://archives.postgresql.org/pgsql-patches/2005-07/msg00107.php > and completed some under-construction parts. > > It's still arguable that we should add dependencies from column > triggers to referenced columns. +1 for adding the dependencies. Cheers, David. > In the present patch, dropeed > columns are just ignored and always considered as not-modified. > Please grep with "TODO: (TRIGGER)" to check the issue. > > Comments welcome. > > Regards, > --- > ITAGAKI Takahiro > NTT Open Source Software Center > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- David Fetter <da...@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fet...@gmail.com Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
