Is ALSO part of the SQL standard? I can't imagine it is because there is no rule mention.
I guess if were were coding from scratch, we could make the syntax INSTEAD or ALSO, but at this point, I don't see adding ALSO as a useful change. --------------------------------------------------------------------------- Fabien COELHO wrote: > > Dear patchers, > > Please find attached a small patch to add an optionnal "ALSO" keyword > to the "CREATE RULE" syntax. > > The "ALSO" keyword can be used where "INSTEAD" would be used, > to mean the opposite, i.e. the current default behavior of rules > which adds operations to the current one. IMHO, it makes the > intended behavior much clearer for the basic user (say, me;-). > > CREATE RULE some_table_del AS > ON DELETE TO some_table DO ALSO > ( > DELETE FROM this_other_table WHERE id=old.id; > ); > > Of course, the absence of the "ALSO" keyword preserves the previous > behavior... that is it behaves the same as with the "ALSO" keyword. > > This patch was made against 7.4.1 with the "difforig" script > provided by postgresql. > > It adds "ALSO" keyword in the parser code (two lines), fixes somehow the > documentation and sql help, and modifies four of the "RULE" > test cases to use this keyword instead of the default nothing-ness. > > It validated for me with a "make check". > > Have a nice day, > > -- > Fabien Coelho - [EMAIL PROTECTED] Content-Description: [ Attachment, skipping... ] > > ---------------------------(end of broadcast)--------------------------- > TIP 8: explain analyze is your friend -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (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 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
