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

help / color / mirror / Atom feed
From: Craig Ringer <ringerc@ringerc.id.au>
To: Igor Neyman <ineyman@perceptron.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jay Levitt <jay.levitt@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Guide to PG's capabilities for inlining, predicate hoisting, flattening, etc?
Date: Thu, 03 Nov 2011 17:07:21 +0800
Message-ID: <4EB259C9.5020102@ringerc.id.au> (raw)
In-Reply-To: <F4C27E77F7A33E4CA98C19A9DC6722A2084DFFF7@EXCHANGE.corp.perceptron.com>
References: <CANSg5mqt+7j1SU2Gu2tZ_c_vdzCJPkymxEqaQ-OjRXfz=Pfimg@mail.gmail.com>
	<29918.1320244719@sss.pgh.pa.us>
	<CA+TgmoY_a34rAWCxBaA+3RtSv9tBo0PaRyxnNH4-rtJ5XkBQdA@mail.gmail.com>
	<F4C27E77F7A33E4CA98C19A9DC6722A2084DFFF7@EXCHANGE.corp.perceptron.com>

On 11/03/2011 04:22 AM, Igor Neyman wrote:

> Hints.... here we come :)

Pfft! No more than `VOLATILE' vs `STABLE' vs `IMMUTABLE'. It's a 
semantic difference, not just a performance hint.

That said, I'm not actually against performance hints if done sensibly.

--
Craig Ringer




view thread (11+ messages)  latest in thread

Message-ID: <4EB259C9.5020102@ringerc.id.au>
Permalink:  ../4EB259C9.5020102@ringerc.id.au/
Also on:    postgresql.org/message-id/4EB259C9.5020102@ringerc.id.au

 · 

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: ringerc@ringerc.id.au, ineyman@perceptron.com, robertmhaas@gmail.com, tgl@sss.pgh.pa.us, jay.levitt@gmail.com
  Subject: Re: Guide to PG's capabilities for inlining, predicate hoisting, flattening, etc?
  In-Reply-To: <4EB259C9.5020102@ringerc.id.au>

* 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