[Gnumed-devel] lab_request.results_reported_when is not enough to catch re-reported copies of the same result

[James Busser]

This timestamp describes when a *set* of results gets reported  
however a request can have multiple tests within it, some of which  
are reported earlier (as partial) and some of which get reported only  
later, in a transmission that can (and in BC CA does) re-include the  
already-downloaded partial results.

Each specific result (observation) has a datetime stamp of when it  
was made available by the lab.

The ability to distinguish possibly 3 or 4 copies of the same result  
will be helped if we would keep, in test_result, in a column what  
would be

        test_result.result_reported_when (which does not yet exist)

which can be supplied by

	OBX 014 Date-Time of Observation (Test resulted by laboratory  
timestamp)