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What is XQuery doing wrong and why does it get ignored !?

John D. Mitchell jdmitchell at gmail.com
Thu Jul 22 00:50:34 PDT 2010


  What is XQuery doing wrong and why does it get
	ignored !?
Howdy,

On Jul 21, 2010, at 23:32 , Daniela Florescu wrote:
[...]
>> But why?  Why should someone learn yet another "new" language when  
>> they can do the same thing directly in JavaScript?
>>
>> On the client side, you get very little benefit
>
> *Totally* disagree with you.
>
> Don't know about you, but I'd LOVE to have a way to run my apps in a  
> browser while in an airplane,
> disconnect with just with a click, reconnect later, on and life goes  
> on.
>
> How do I get that in the current status: Javascript is totally  
> handicaped if server isn't around !?
>
> Moreover, the amount of state (see database size) that I would like  
> to cache/replicate in
> my browser is way beyond what Javascript can handle.

The issues you're railing for are not problems with Javascript but  
with the current browser (implementations).

Also, you know that things like Offline GMail exist, right?

You can, of course, run your own local server on your laptop and have  
it snapshot/cache/whatever your full dataset living elsewhere but  
that's the same issue regardless of language.

That's not to say that JS doesn't have its share of retarded, too. We  
just need to be clear what problems are specific and which are  
shared. :-)

[...]
>> Um, er, there are a number of OSS implementations of XQuery engines  
>> that run just fine.  So, what about them don't meet your need/want  
>> here already?
>
> I don't know Brett's answer, but let me guess: servers like  
> MarkLogic and Oracle scale. The problem is cost.

Yep.  People want stuff that's superfast and scalable but don't want  
to have to pay for it.  This is part of the fallacy of a lot of usages  
of OSS but that doesn't change the fact of how many many people/ 
companies make decisions. :-(

One of Brett's points was the XQuery implementation(s) aren't part of  
any of the standard, el-cheapo shared hosting bundles is partially a  
cost issue but I think the emphasis to take away there is that chicken- 
n-egg thing.

Have fun,
John



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