FHIR Chat · CQL - Quick counting · implementers

Stream: implementers

Topic: CQL - Quick counting


view this post on Zulip Björn Kroll (Feb 28 2019 at 07:08):

Our use case: We want to count the number of FHIR resources satisfying some expression defined in CQL. We already know that there is an implementation on github: https://github.com/DBCG/cql_engine .

However, this implementation loads all resources into memory and evaluates them afterwards. As our total number of FHIR resources is too large we need an alternative implementation which is less memory consuming and has higher performance.

Does anyone have a suggestion for us?

view this post on Zulip Bryn Rhodes (Mar 13 2019 at 04:47):

@Björn Kroll , apologies this got lost, here's a link to an answer in the CQL stream: https://chat.fhir.org/#narrow/stream/179220-cql/topic/CQL.20-.20Quick.20Counting


Last updated: Apr 12 2022 at 19:14 UTC