From: Joseph Conway <mail@joeconway.com>
To: Thom Brown <thombrown@gmail.com>
Cc: Dave Page <dpage@pgadmin.org>
Cc: Steve Atkins <steve@blighty.com>
Cc: pgsql-docs <pgsql-docs@postgresql.org>
Subject: Re: Railroad diagrams, a-la sqlite
Date: Sat, 17 Jul 2010 13:30:48 -0700
Message-ID: <4C4212F8.1080704@joeconway.com> (raw)
In-Reply-To: <AANLkTimBZvb554biF3gZyVfFdAdswnj9AZdC03UVUzXw@mail.gmail.com>
References: <2AACFC47-C121-4549-B015-AC4FCA9380CE@blighty.com>
<AANLkTikzQCj8kJPAINMSGjypjKbWxmcXe2WqWqeenKxU@mail.gmail.com>
<AANLkTiniHvonP00ltJgXsB1xOyUPggmrWA4V05PKov5L@mail.gmail.com>
<AANLkTimBZvb554biF3gZyVfFdAdswnj9AZdC03UVUzXw@mail.gmail.com>
On 7/17/10 1:26 PM, Thom Brown wrote:
> On 17 July 2010 21:23, Dave Page <dpage@pgadmin.org> wrote:
>> On Sat, Jul 17, 2010 at 9:19 PM, Thom Brown <thombrown@gmail.com> wrote:
>>> While they're quite attractive, I actually see them being more
>>> confusing than helpful personally, but I could be wrong. I reckon
>>> there might be clearer ways of representing statement options. The
>>> real problems with the railroad design come when there are lots of
>>> references to other diagrams, and you end up with about 10 just for 1
>>> statement.
>>>
>>> Is there a way of testing their usefulness?
>>
>> Personal experience? I used to find them quite useful when I was
>> starting out with Informix.
>>
>
> I guess I'm quite used to the existing statement definitions. It's an
> elegant idea, just wondering if it scales sanely. Are the examples of
> more complex statements?
Oracle SELECT:
http://download.oracle.com/docs/cd/B14117_01/server.101/b10759/statements_10002.htm
Joe
--
Joe Conway
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To: pgsql-docs@postgresql.org
Cc: mail@joeconway.com, thombrown@gmail.com, dpage@pgadmin.org, steve@blighty.com
Subject: Re: Railroad diagrams, a-la sqlite
In-Reply-To: <4C4212F8.1080704@joeconway.com>
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