On 04/01/2012 15:54, Diego Bosc? wrote: > So has AQL been selected as the official openEHR query language?
not officially. It has been implemented in at least 2 production systems (it may be 3), so we know it 'works'. But at least from my point of view, and I am sure the primary developers (Chunlan Ma, Heath Frankel) would agree - it can only benefit from wider inspection and testing by the community. I would suggest that the current AQL spec can be considered to be in a 'trial' state now. There is also a very good piece of work called a-path which Zilics did in Brazil a few years ago, and I think that should be integrated into ADL 1.5 (rules section) and probably also AQL. There are others thinking about an expanded AQL, with the equivalent of schema definition operations of SQL as well. Once the current specification governance has been clarified, I suggest that the current AQL spec be declared 'trial' just so we have something solid to work with, and then a Query project group be set up to consolidate work on a next generation AQL. - thomas
