From: | "PGMailList" <pgmail(at)pgexplorer(dot)com> |
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To: | <tsmets(at)brutele(dot)be>, <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: command to Describe RULE |
Date: | 2002-03-27 12:37:44 |
Message-ID: | 003901c1d58c$3199b820$05faa8c0@edios |
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Thread: | |
Lists: | pgsql-general |
select * from pg_rules
----- Original Message -----
From: <tsmets(at)brutele(dot)be>
To: <pgsql-general(at)postgresql(dot)org>
Sent: Wednesday, March 27, 2002 3:19 AM
Subject: [GENERAL] command to Describe RULE
>
>
> I create a table (addresses) & its "historification".
> When an address is modified, it's moved to the historification which is
> basically a copy on "update" or "delete".
> I seem to have a proble & I wanna find the RULE I created to alter them.
> What command should I issue for that.
> I seem to not be able to find any \d command for that ...
> Could some one hint me ?
>
> Tx,
>
> Thomas,
>
> ===============================
>
>
>
> -- This table is really useless as such
> -- *************************************
> CREATE TABLE historification ( pkh SERIAL,
> -- This will be the moment the record is "archived"
> dateend TIMESTAMP DEFAULT
CURRENT_TIMESTAMP);
>
>
>
> -- Here is a basic address table
> CREATE TABLE addresses ( pk SERIAL,
> street CHAR(50) NOT NULL,
> street2 CHAR(50),
> zip CHAR(10) NOT NULL,
> city CHAR(30) NOT NULL,
> -- I have a table countries where the countries
> -- iso-codes are stored
> Country CHAR(2) REFERENCES COUNTRIES,
> datemodified TIMESTAMP DEFAULT
CURRENT_TIMESTAMP);
>
>
> -- Here is the PostgreSQL historification
> CREATE TABLE AddressHistorics ()
> INHERITS (historification, addresses);
>
>
>
> CREATE RULE update_address AS
> ON UPDATE TO addresses
> DO
> INSERT INTO AddressHistorics (pk, street, street2, zip, city,
> country, datemodified)
> VALUES (old.pk, old.street, old.street2, old.zip, old.city,
> old.country, old.datemodified);
>
>
> CREATE RULE delete_address AS
> ON DELETE TO Addresses
> DO
> INSERT INTO AddressHistorics (pk, street, street2, zip, city,
> country, datemodified)
> VALUES (old.pk, old.street, old.street2, old.zip, old.city,
> old.country, old.datemodified);
>
>
> --
> Thomas SMETS
> rue J. Wytsmanstraat 62
> 1050 Bruxelles
> yahoo-id : smetsthomas
>
>
>
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