Re: explain root element for auto-explain

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: explain root element for auto-explain
Date: 2009-08-18 00:20:35
Message-ID: 4A89F3D3.3020200@dunslane.net
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Andrew Dunstan wrote:
>
>
> Tom Lane wrote:
>>
>>
>> * what's the xmlns URL really going to be?
>>
>
> By convention it refers to a place where you publish the schema for
> the document type, but it is in fact completely arbitrary, and can
> refer to a non-existant resource - as long as it is unique - it's just
> a namespace designator, and from an XML POV has no more semantic
> significance that a schema name does in SQL.
>
>

One thing I definitely think we should do is to put the namespace URL in
a header file. Think of it as being a bit like the catversion.
Hardcoding it in explain.c doesn't seem like a good idea.

cheers

andrew

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