Georg,
CONTAINS is like the Xpath '//' operator - it finds a match at any level
of hierarchy (if there is one).
On 25/04/2019 18:29, Georg Fette wrote:
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
--
Thomas Beale
Principal, Ars Semantica <http://www.arssemantica.com>
Consultant, ABD Project, Intermountain Healthcare
<https://intermountainhealthcare.org/>
Management Board, Specifications Program Lead, openEHR Foundation
<http://www.openehr.org>
Chartered IT Professional Fellow, BCS, British Computer Society
<http://www.bcs.org/category/6044>
Health IT blog <http://wolandscat.net/> | Culture blog
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<https://theobjectivestance.net/>
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