Please remove me from this list please be done the unsubscribe 3times now thank you Sent from Yahoo Mail on Android On Mon, Jan 11, 2016 at 4:25 AM, Hondros, Constantine (ELS-AMS)<c.hond...@elsevier.com> wrote: Hi Christian,
I should have read the spec more fully. So clearly I will need to create a custom grouping key as the atomization process (fn:data) basically passes over attribute values: let $val := <affiliation> <organization>Institut für Organische Chemie der Universität Heidelberg</organization> <country iso-code="DEU"/> </affiliation> return data($val) => results in "Institut für Organische Chemie der Universität Heidelberg" as a grouping key. Thanks for pointing me in the right direction. C. -----Original Message----- From: Christian Grün [mailto:christian.gr...@gmail.com] Sent: 09 January 2016 18:49 To: Hondros, Constantine (ELS-AMS) Cc: basex-talk@mailman.uni-konstanz.de Subject: Re: [basex-talk] group-by behaviour for clustering XML fragments Hi Constantine, > Incidentally, BaseX is simply unbelievably fast at executing this – a > million fragments clustered and written out to another DB in 16 > seconds on a laptop. My congratulations on an amazing product. Thanks! > If I use the entire XML fragment as a grouping key, something like this: > [...] > … then will the grouping be equivalent to the functionality of the > deep-equal function? A grouping keys is the atomized value of a grouping variable [1,2]. If this value is prone to be ambiguous, you can create an arbitrary other value, e.g. as follows: group by $val := string-join($a/*, '; ') Cheers, Christian [1] http://docs.basex.org/wiki/XQuery_3.0#group_by [2] http://www.w3.org/TR/xquery-30/#id-group-by ________________________________ Elsevier B.V. Registered Office: Radarweg 29, 1043 NX Amsterdam, The Netherlands, Registration No. 33156677, Registered in The Netherlands.
