/contrib patch from Karel.

contrib/noupdate/README

@@ -0,0 +1,20 @@
+
+
+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;

contrib/noupdate/noup.example

@@ -1,9 +0,0 @@
-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;

contrib/noupdate/noup.source

@@ -1,7 +0,0 @@
-DROP FUNCTION noup ();
-
-CREATE FUNCTION noup ()
-	RETURNS opaque
-	AS '_OBJWD_/noup_DLSUFFIX_'
-	LANGUAGE 'newC'
-;