Thomas answered the CONTAINS operator. I am not sure how to best answer your second question. I will try the following :-)
The node predicates as below: * c2/items[at0002]/items[at0001]/value/magnitude * o/data[at0001]/events[at0002]/time Here the "c2" and "o" is a reference to a path in the Composition, and the reference is defined in the FROM part of the AQL. The "c2" is synonymous with the following path: "c2" == "/content[openEHR-EHR-OBSERVATION.laboratory_test.v1]/data[at0001]/events[at0002]/data[at0003]/items[openEHR-EHR-CLUSTER.laboratory_test_panel.v1]" Which gives "c2" + "path" to be: "/content[openEHR-EHR-OBSERVATION.laboratory_test.v1]/data[at0001]/events[at0002]/data[at0003]/items[openEHR-EHR-CLUSTER.laboratory_test_panel.v1]/ /items[at0002]/items[at0001]/value/magnitude" Vennlig hilsen Bjørn Næss Produktansvarlig DIPS ASA Mobil +47 93 43 29 10 -----Original Message----- From: openEHR-technical <[email protected]> On Behalf Of Georg Fette Sent: torsdag 25. april 2019 19:30 To: [email protected] Subject: Re: AQL questions Hi Bjørn, Thank you for your answers. They make me assume that the CONTAINS-operator is recursive because in your second query you ommited the part with "CONTAINS OBSERVATION o[openEHR-EHR-OBSERVATION.laboratory_test.v1]". Is this assumption correct ? This would make writing AQL a lot simpler. Another assumption I have is that the predicate namespaces always relate to the aliased archetype the path they are used within starts with. In your first query you use at0001 and at0002 each two times but they seem to have different meanings. Greetings Georg -- --------------------------------------------------------------------- Dipl.-Inf. Georg Fette Raum: B009 Universität Würzburg Tel.: +49-(0)931-31-85516 Am Hubland Fax.: +49-(0)931-31-86732 97074 Würzburg mail: [email protected] --------------------------------------------------------------------- _______________________________________________ openEHR-technical mailing list [email protected] http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org _______________________________________________ openEHR-technical mailing list [email protected] http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org
