Re: [SQL] Problem with Rules
От | wieck@debis.com (Jan Wieck) |
---|---|
Тема | Re: [SQL] Problem with Rules |
Дата | |
Msg-id | m117MBJ-0003kvC@orion.SAPserv.Hamburg.dsh.de обсуждение исходный текст |
Ответ на | Problem with Rules (Peter Eisentraut <peter@pathwaynet.com>) |
Список | pgsql-sql |
> > I am trying to create some rules for referential integrity. A generic > example: > > test=> create table one (id int4, name text); > > test=> create table two (ref int4, descr text); > > So lets say the "ref" references the "id" and I want to ensure update and > delete cascade when table "one" is modified: > > test=> create rule one_delete_cascade as on delete to one do delete from > two where ref = current.id; > ERROR: current: Table does not exist. > > test=> create rule one_update_cascade as on update to one do update two > set ref=new.id where ref=current.id; > ERROR: current: Table does not exist. > > Apparently, it recognizes the "new" pseudo-instance but not the "current" > one. Please don't tell me "current" is not yet implemented. > > > test=> select version(); > version > -------------------------------------------------------------- > PostgreSQL 6.5.0 on i686-pc-linux-gnu, compiled by gcc 2.7.2.3 CURRENT has been replaced by OLD in v6.4 but still supported. It has been removed in v6.5 so you have to use OLD now. Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #========================================= wieck@debis.com (Jan Wieck) #
В списке pgsql-sql по дате отправления: