Stream: implementers
Topic: Very composite search parameters?
Paul Lynch (Sep 20 2021 at 18:00):
The documentation for composite search parameters mentions a pair of values separated by $. Can one have three or more values separated by $? For instance, if one wanted to create a code-date-value-quantity search parameter on Observation, would one write as a query, Observation?code-date-value-quantity=3137-7$gt2020$gt120 ?
Lloyd McKenzie (Sep 20 2021 at 18:15):
Yes
Xiaocheng Luan (Sep 20 2021 at 18:54):
Paul Lynch said:
The documentation for composite search parameters mentions a pair of values separated by $. Can one have three or more values separated by $? For instance, if one wanted to create a code-date-value-quantity search parameter on Observation, would one write as a query, Observation?code-date-value-quantity=3137-7$gt2020$gt120 ?
What exactly is the semantic of this query? Is it the same as "code-value-quantity=xxx&date=yyy"?
Paul Lynch (Sep 20 2021 at 19:31):
Yes, I would think so. However, I think the real usefulness of composite parameters is in _has, e.g. Patient?_has:Observation:subject:combo-code-date-value-quantity=3137-7$gt2010$gt123.
Last updated: Apr 12 2022 at 19:14 UTC
