Re: Porting MSSQL to PGSQL (Was: [OT] MySQL is bad, but THIS

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Martijn van Oosterhout <kleptog@svana.org>
Cc: "Jim C. Nasby" <jnasby@pervasive.com>, Mischa Sandberg <mischa@ca.sophos.com>, pgsql-hackers@postgresql.org
Date: 2006-05-22T19:11:14Z
Lists: pgsql-hackers
Martijn van Oosterhout wrote:
-- Start of PGP signed section.
> On Mon, May 22, 2006 at 10:41:59AM -0500, Jim C. Nasby wrote:
> > > CREATE TRIGGER name { BEFORE | AFTER } { event [ OR ... ] }
> > >     ON table FOR EACH STATEMENT
> > >     EXECUTE PROCEDURE funcname ( arguments )
> >  
> > And that doesn't give you any information on the rows that were
> > modified. Other RDBMSes will provide a NEW rowset and an OLD rowset that
> > you can select from inside the trigger as if they were real tables.
> 
> Is this on the TODO list? It doesn't seem too difficult to create a
> tuplestore and store the NEW and OLD tuples there and pass the whole
> set to the trigger.

TODO has:

	* Allow statement-level triggers to access modified rows

-- 
  Bruce Momjian   http://candle.pha.pa.us
  EnterpriseDB    http://www.enterprisedb.com

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