Conference Schedule - PGConf.EU 2011
Introducing ISO 21090 Healthcare Datatypes
The HL7 standard is widely used to exchange medical information electronically. As a part of the standard, HL7 defines scalar communication data types like physical quantity, point in time and concept descriptor but also complex types such as interval types, collection types and probabilistic types. The HL7 data types in its second revision called R2 has become an ISO standard in 2008. We describe an implementation in the PostgreSQL database server and show that the database server can effectively execute scientific calculations with units of measure, supports a large number of operations on time points and intervals, and can perform operations that are akin to a medical terminology server.