• To: Joe English <jenglish@f...>,xml-dev@l...
• Subject: Re: XQuery and DTD/Schema?
• From: Jonathan Robie <jonathan.robie@d...>
• Date: Sat, 06 Jul 2002 13:47:31 -0400
• In-reply-to: <200207032130.g63LUQ615185@d...>
• References: <200207032047.g63Klik03022@l...><200207032047.g63Klik03022@l...>

At 02:30 PM 7/3/2002 -0700, Joe English wrote:

>I'd even question how relevant the efficiency issue is.
>
>XQuery is designed, principally, to do database queries.
>In this context, it doesn't matter if you can take advantage
>of type information to add two xs:integers in nanoseconds
>instead of microseconds, when it takes milliseconds to retrieve
>the data in the first place.

Queries on large sets of data *do* need to be efficient - and when you want 
to be efficient, you try to avoid actually retrieving the data whenever 
possible. Reasoning about types statically is one of the ways we do this.

Jonathan

• References:
  • Re: XQuery and DTD/Schema?
    • From: Uche Ogbuji <uche.ogbuji@f...>
  • Re: XQuery and DTD/Schema?
    • From: Joe English <jenglish@f...>

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