Alvaro Herrera wrote: > On Fri, Mar 11, 2005 at 11:32:04AM -0500, Bruce Momjian wrote: > > Chris Mair wrote: > > > Hello, > > > > > > I'd like to start working on the following TODO item: > > > Referential Integrity / Support triggers on columns > > > > > > Is somebody else already working on this? > > > > No one, I think. > > Isn't this the REFERENCING clause? I think there was a partial patch > submitted already for this.
The patch appears unrelated to column-level triggers: http://momjian.postgresql.org/cgi-bin/pgpatches2 --------------------------------------------------------------------------- The attached patch adds the optional REFERENCES syntax in CREATE TRIGGER statement to make an automatic alias for OLD/NEW record during trigger setup. The implementation of this new feature makes CREATE TRIGGER command more compatible to SQL standard, and allows the future implementation of executing SQL commands in trigger action. After the implementation, the extended syntax of statement is as follows. CREATE TRIGGER name BEFORE|AFTER INSERT|DELETE|UPDATE [OR...] ON tablename [REFERENCING OLD|NEW [AS] identifier] [FOR [EACH] ROW|STATEMENT] EXECUTE PROCEDURE funcname (arguments) -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq