N1QL seems to have all the features to support a JSONiq front-end. Seems like a simple translation, except for the group-by clause. I guess if people like 4-valued logic, breaking up constructors into group by and select clauses - let them have it :)
> On 10 Oct 2015, at 13:03, daniela florescu <dflore...@me.com> wrote: > > Andy, > > The story is more complicated here. > > The professor at Irvine Univ. in charge of the students team who designed > AsterixDB, Mike Carey, is > today the Chief Architect of CouchDB, who ships the N1QL that I just sent > yesterday. > > Mike Carey knows exactly XQuery, given that he was in charge of my XQuery > processor at BEA Systems after I left. > > So it’s definitely not by lack of knowledge that he went BACKWARDS and N1QL > is even more primitive then SQL 92 > (just added some primitive forms of path expressions to it..) > > It’s probably market pressure…. > > IT HAS TO LOOK LIKE SQL, AND IT HAS TO USE THE THREE MAGIC KEYWORDS “select” > “from” AND “where”. > > > Other then that, who cares that from a data processing perspective, we go > backwards where we were in 1994 !??? > (and nested select-from-where in the from clause are considered “disruptive” > ..huh..) > > Depressing. > > Are users so ignorant and they prefer a vanilla syntax that they know over > significant expressive power ? > > I wonder. > > Dana > > > > >> On Oct 9, 2015, at 3:31 PM, Andy Bunce <bunce.a...@gmail.com >> <mailto:bunce.a...@gmail.com>> wrote: >> >> Hi, >> >> Not tried it myself but, AsterixDB [1] may be of interest to XQuery users. >> >> >The heart of AQL[2] is the FLWOR (for-let-where-orderby-return) expression. >> >The roots of this expression were borrowed from the expression of the same >> >name in XQuery. >> >> and >> >> >but XQuery was co-designed by a diverse band of experienced language >> >designers (SQL, functional programming,and XML experts) >> >and we wanted to avoid revisiting many of the same issues [3] >> >> Regards >> /Andy >> >> [1] https://asterixdb.ics.uci.edu/ <https://asterixdb.ics.uci.edu/> >> [2] https://asterixdb.ics.uci.edu/documentation/aql/manual.html >> <https://asterixdb.ics.uci.edu/documentation/aql/manual.html> >> [3] http://www.vldb.org/pvldb/vol7/p1905-alsubaiee.pdf >> <http://www.vldb.org/pvldb/vol7/p1905-alsubaiee.pdf> >> >> _______________________________________________ >> talk@x-query.com <mailto:talk@x-query.com> >> http://x-query.com/mailman/listinfo/talk > > _______________________________________________ > talk@x-query.com > http://x-query.com/mailman/listinfo/talk С уважением, Павел Велихов pavel.velik...@gmail.com
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