pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: PFC <lists@peufeu.com>
To: Jonah H. Harris <jonah.harris@gmail.com>
To: Waldomiro <waldomiro@shx.com.br>
Cc: pgsql-performance@postgresql.org
Subject: Re: INSERT OU UPDATE WITHOUT SELECT?
Date: Wed, 31 May 2006 00:35:15 +0200
Message-ID: <op.tadyc1jwcigqcu@apollo13> (raw)
In-Reply-To: <36e682920605301405u4d665fcftbe0a97b5753f5209@mail.gmail.com>
References: <447C8F1D.8090404@shx.com.br>
	<36e682920605301405u4d665fcftbe0a97b5753f5209@mail.gmail.com>

> PostgreSQL does not support MERGE at the moment, sorry.

	Issue an UPDATE, and watch the rowcount ; if the rowcount is 0, issue an  
INSERT.
	Be prepared to retry if another transaction has inserted the row  
meanwhile, though.

	MERGE would be really useful.




view thread (7+ messages)  latest in thread

Message-ID: <op.tadyc1jwcigqcu@apollo13>
Permalink:  ../op.tadyc1jwcigqcu@apollo13/
Also on:    postgresql.org/message-id/op.tadyc1jwcigqcu@apollo13

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: lists@peufeu.com, jonah.harris@gmail.com, waldomiro@shx.com.br
  Subject: Re: INSERT OU UPDATE WITHOUT SELECT?
  In-Reply-To: <op.tadyc1jwcigqcu@apollo13>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox