pg.ddx.io  pgsql-patches@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Alex Hunsaker <badalex@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Zdenek Kotala <Zdenek.Kotala@sun.com>
Cc: Xiao Meng <mx.cogito@gmail.com>
Cc: pgsql-patches@postgresql.org, "Jonah H. Harris" <jonah.harris@gmail.com>
Subject: Re: hash index improving v3
Date: Thu, 4 Sep 2008 19:54:51 -0600
Message-ID: <34d269d40809041854g355a8f68ga3a037a69e3d9fcb@mail.gmail.com> (raw)
In-Reply-To: <11525.1220579153@sss.pgh.pa.us>
References: <ded849dd0808171846g2c6c65adub942bd2510a6c94f@mail.gmail.com>
	<48BFDA8D.3080506@sun.com>
	<29987.1220560114@sss.pgh.pa.us>
	<7627.1220569888@sss.pgh.pa.us>
	<34d269d40809041742r6a0703dbgfbdd012f7f19de2e@mail.gmail.com>
	<10995.1220577198@sss.pgh.pa.us>
	<11525.1220579153@sss.pgh.pa.us>

On Thu, Sep 4, 2008 at 7:45 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> So what we need for testing is a few different key values that hash to
> the same code.  Not sure about an easy way to find such.

Hrm, well I have not really looked at the hash algorithm but I assume
we could just reduce the number of buckets?



view thread (63+ messages)  latest in thread

Message-ID: <34d269d40809041854g355a8f68ga3a037a69e3d9fcb@mail.gmail.com>
Permalink:  ../34d269d40809041854g355a8f68ga3a037a69e3d9fcb@mail.gmail.com/
Also on:    postgresql.org/message-id/34d269d40809041854g355a8f68ga3a037a69e3d9fcb@mail.gmail.com

 · 

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-patches@postgresql.org
  Cc: badalex@gmail.com, tgl@sss.pgh.pa.us, Zdenek.Kotala@sun.com, mx.cogito@gmail.com, jonah.harris@gmail.com
  Subject: Re: hash index improving v3
  In-Reply-To: <34d269d40809041854g355a8f68ga3a037a69e3d9fcb@mail.gmail.com>

* 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