postgres

History

Bruce Momjian 92288a1cf9 Change made to elog: o Change all current CVS messages of NOTICE to WARNING. We were going to do this just before 7.3 beta but it has to be done now, as you will see below. o Change current INFO messages that should be controlled by client_min_messages to NOTICE. o Force remaining INFO messages, like from EXPLAIN, VACUUM VERBOSE, etc. to always go to the client. o Remove INFO from the client_min_messages options and add NOTICE. Seems we do need three non-ERROR elog levels to handle the various behaviors we need for these messages. Regression passed.		2002-03-06 06:10:59 +00:00
..
Makefile	To fix the perpetually broken makefiles in the contrib tree, I have	2001-09-06 10:49:30 +00:00
README.noup	Add missing /contrib files	2000-06-19 14:02:16 +00:00
noup.c	Change made to elog:	2002-03-06 06:10:59 +00:00
noup.sql.in	Revise handling of oldstyle/newstyle functions per recent discussions	2000-11-20 20:36:57 +00:00

README.noup


noupdate
~~~~~~~~

 - trigger to prevent updates on single columns.


Example:
~~~~~~~

CREATE TABLE TEST ( COL1 INT, COL2 INT, COL3 INT );

CREATE TRIGGER BT BEFORE UPDATE ON TEST FOR EACH ROW
	EXECUTE PROCEDURE 
	noup ('COL1');

-- Now Try
INSERT INTO TEST VALUES (10,20,30);
UPDATE TEST SET COL1 = 5;