From: wieck@debis.com
To: peter@pathwaynet.com
Cc: pgsql-sql@postgreSQL.org
Subject: Re: [SQL] Problem with Rules
Date: Thu, 22 Jul 1999 18:58:53 +0200 (MET DST)
Message-ID: <m117MBJ-0003kvC@orion.SAPserv.Hamburg.dsh.de> (raw)
In-Reply-To: <Pine.LNX.4.10.9907221028560.5288-100000@saxony.pathwaynet.com>
>
> 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CURRENT has been replaced by OLD in v6.4 but still supported.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) #
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To: pgsql-sql@postgresql.org
Cc: wieck@debis.com, peter@pathwaynet.com
Subject: Re: [SQL] Problem with Rules
In-Reply-To: <m117MBJ-0003kvC@orion.SAPserv.Hamburg.dsh.de>
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