thomas.beale at openehr.org
Thu Apr 25 13:47:45 EDT 2019
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.
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