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Re: xmllink-970406 various

From: Michael Sperberg-McQueen <U35395@UICVM.UIC.EDU>
Date: Wed, 09 Apr 97 09:10:15 CDT
Message-Id: <199704091415.KAA28656@www10.w3.org>
To: W3C SGML Working Group <w3c-sgml-wg@w3.org>
On Wed, 9 Apr 1997 09:17:40 -0400 Gavin Nicol said:
(quoting Terry Allen)
>>The circumstance I'm wondering about most is this:  ...
>> ... In the case of [queries],
>>quick random testing reveals that some servers return the
>>entire instance (not what was expected, some error recovery will
>>be needed there), or fail to return anything but an error message.
>
>Right, and this is the core of my disagreement with using queries.
>We either standardise something, or nothing will be gauranteed to
>work, in which case, it's probably better to stay silent for the
>moment.

This appears to be an argument which proves that queries IN GENERAL
cannot possibly be useful -- nothing specific to XML here.  Since
queries do in practice seem to be found useful, despite the fact that
they only work on servers on which they work, I don't see any reason
not to describe how they can be used in XML.  The same problems
surely arise if you build the query into the path segment of the
URL:  it will work only on servers on which it works.

What am I missing?

-C. M. Sperberg-McQueen
Received on Wednesday, 9 April 1997 10:15:13 EDT

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