pg.ddx.io  pgsql-docs@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: Michael Paesold <mpaesold@gmx.at>
To: Joshua D. Drake <jd@commandprompt.com>
Cc: NikhilS <nikkhils@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: David Fetter <david@fetter.org>
Cc: Jonah H. Harris <jonah.harris@gmail.com>
Cc: PostgreSQL Docs <pgsql-docs@postgresql.org>
Cc: PostgreSQL Patches <pgsql-patches@postgresql.org>
Subject: Re: [DOCS] Partition: use triggers instead of rules
Date: Thu, 29 Nov 2007 17:06:29 +0100
Message-ID: <474EE385.9030103@gmx.at> (raw)
In-Reply-To: <474EE25E.3080304@commandprompt.com>
References: <20071128202615.GG24146@fetter.org>
	<21686.1196283184@sss.pgh.pa.us>
	<36e682920711281858x9a37039sa104036bf025de41@mail.gmail.com>
	<20071129031702.GU24146@fetter.org>
	<2854.1196315753@sss.pgh.pa.us>
	<20071128224154.06f950c9@commandprompt.com>
	<d3c4af540711290705q35ea51cdkfaa94b0c07a1aecc@mail.gmail.com>
	<474EDAE2.3010705@gmx.at>
	<474EE25E.3080304@commandprompt.com>

Joshua D. Drake wrote:
> Michael Paesold wrote:
>> I would also add another sentence about *why* the recommendation was 
>> changed. We have one rule-based setup here, and it has been working 
>> flawlessly for us,... so personally I don't even know the reasons.
>>
> 
> Rules are extremely slow in comparisons and not anywhere near as 
> flexible. As I said up post yesterday... they work well in the basic 
> partitioning configuration but anything else they are extremely deficient.

Ah, thanks for that summary. How do they compare to triggers dynamically 
EXECUTEing the inserts? Is that a better solution, or should one really 
just use the IF ... ELSIF ... ELSIF ... ELSE pattern as suggested in the 
new docs? (Which means one has to re-create the complete trigger each 
time a partition is added.)

Best Regards
Michael Paesold




view thread (38+ messages)  latest in thread

Message-ID: <474EE385.9030103@gmx.at>
Permalink:  ../474EE385.9030103@gmx.at/
Also on:    postgresql.org/message-id/474EE385.9030103@gmx.at

 · 

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-docs@postgresql.org
  Cc: mpaesold@gmx.at, jd@commandprompt.com, nikkhils@gmail.com, tgl@sss.pgh.pa.us, david@fetter.org, jonah.harris@gmail.com, pgsql-patches@postgresql.org
  Subject: Re: [DOCS] Partition: use triggers instead of rules
  In-Reply-To: <474EE385.9030103@gmx.at>

* 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