Dear Michael, 

Thanks for the pointers. 

I was looking at 
https://azure.microsoft.com/en-us/documentation/articles/data-lake-analytics-u-sql-get-started/
 
<https://azure.microsoft.com/en-us/documentation/articles/data-lake-analytics-u-sql-get-started/>
and trying to understand the big picture from examples.

So U-SQL is a dataflow scripting language, where the basic data model is a set 
of rows with C# types, and each
step in the data flow is an expression that can mix (at many levels) SQL’s 
Select-from-where constructs with C# code.

That’s what I understand at least. Let me know if I got it wrong.

Seems very useful for expressing complex data transformations of all kinds, and 
it is still optimizable.

Much more useful for “data science” (whatever this big word means..) then the 
series of SQL-wannabes languages
 from the NoSQL vendors.

Thanks, best regards
Dana



> On Nov 2, 2015, at 4:56 PM, Michael Rys <[email protected] 
> <mailto:[email protected]>> wrote:
> 
> No formal specification. Just a language reference that is still under 
> development :). See http://aka.ms/usql_reference 
> <http://aka.ms/usql_reference>  (and pardon the format, I am writing it and 
> our doc people "convert" it).
> 
> Let me know if you want a personal demo :).
> 
> Cheers
> Michael
> 
> -----Original Message-----
> From: [email protected] <mailto:[email protected]> 
> [mailto:[email protected] <mailto:[email protected]>] On Behalf 
> Of daniela florescu
> Sent: Saturday, October 31, 2015 2:05 PM
> To: talk <[email protected] <mailto:[email protected]>>
> Subject: [xquery-talk] specification for Microsoft's U-SQL ?
> 
> Seems interesting in principle.
> https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fthenewstack.io%2fmeet-u-sql-microsofts-new-language-big-data%2f&data=01%7c01%7cmrys%40microsoft.com%7caef4ceeec92543784b5608d2e23771f1%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=iZjmF47tPZ316GAyjeXegMSLOq%2bLFAbo3zvRYOwMPy0%3d
>  
> <https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fthenewstack.io%2fmeet-u-sql-microsofts-new-language-big-data%2f&data=01%7c01%7cmrys%40microsoft.com%7caef4ceeec92543784b5608d2e23771f1%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=iZjmF47tPZ316GAyjeXegMSLOq%2bLFAbo3zvRYOwMPy0%3d>
> 
> But anyone in a luck to see a specification for it ?
> 
> Thanks for any pointer, best regards
> Dana
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