Re: Solving sudoku using SQL

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Jan Urbański <wulczer(at)wulczer(dot)org>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tatsuo Ishii <ishii(at)postgresql(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Solving sudoku using SQL
Date: 2010-12-09 15:50:03
Message-ID: 1291909742-sup-3250@alvh.no-ip.org
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Excerpts from Jan Urbański's message of mié dic 08 17:11:44 -0300 2010:

> I'm pleasantly surprised that the SA code as it stands today, setting
> the equlibrium factor to 8 and temperature reduction factor to 0.4, the
> query takes 1799.662 ms in total.

That's 5x better than Oracle :-)

--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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