postgres

History

Peter Eisentraut 74618e2b82 Another round of those unportable config/build changes :-/ * Add option to build with OpenSSL out of the box. Fix thusly exposed bit rot. Although it compiles now, getting this to do something useful is left as an exercise. * Fix Kerberos options to defer checking for required libraries until all the other libraries are checked for. * Change default odbcinst.ini and krb5.srvtab path to PREFIX/etc. * Install work around for Autoconf's install-sh relative path anomaly. Get rid of old INSTL__OPTS variables, now that we don't need them anymore. Use `gunzip -c' instead of g?zcat. Reportedly broke on AIX. * Look for only one of readline.h or readline/readline.h, not both. * Make check for PS_STRINGS cacheable. Don't test for the header files separately. * Disable fcntl(F_SETLK) test on Linux. * Substitute the standard GCC warnings set into CFLAGS in configure, don't add it on in Makefile.global. * Sweep through contrib tree to teach makefiles standard semantics. ... and in completely unrelated news: * Make postmaster.opts arbitrary options-aware. I still think we need to save the environment as well.		25 years ago
..
Makefile	Another round of those unportable config/build changes :-/	25 years ago
README.noup	Add missing /contrib files	25 years ago
noup.c	Second round of fmgr changes: triggers are now invoked in new style,	25 years ago
noup.sql.in	Update to /contrib from Karel.	25 years ago

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;