Re: How to cast a general record?

Gerhard-
It is good you covered INSERTS but I would replicate the Insert Trigger for Update event
Vielen Danke,
Martin

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> Date: Thu, 1 Jan 2009 14:41:08 +0100
> From: ml-postgresql-20081012-3518(at)gheift(dot)de
> To: pgsql-general(at)postgresql(dot)org
> Subject: [GENERAL] How to cast a general record?
>
> Hello,
>
> I want to log with triggers or in functions, and these logs should be
> independet of the transaction. Beside i want to have the information
> which action was commited and which not.
>
> So my idea was to log into the same database with dblink, return the
> primary keys and add them into a commit table.
>
> But my problem is, that I do not now how to write the rule properly.
>
> My schema locks like this:
>
> CREATE TABLE log_msg (
> msg_id bigserial not null,
> msg text not null,
> constraint msg_pkey primary key (msg_id)
> );
>
> CREATE TABLE log_commit (
> msg_id bigint not null,
> constraint msg_pkey primary key (msg_id)
> );
>
> CREATE VIEW log AS
> SELECT log_msg.*, log_commit.msg_id IS NOT NULL AS commited
> FROM log_msg LEFT JOIN log_commit USING (msg_id);
>
> CREATE OR REPLACE RULE "insert_log" AS
> ON INSERT TO log DO INSTEAD
>
> -- now this is pseudo code:
> INSERT INTO log_commit (msg_id)
> SELECT dblink('dbname=samedb', 'INSERT log_msg (msg) VALUES ('
> || quote_literal(new.msg)
> || ') RETURNING msg_id');
>
> Regards,
> Gerhard

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