finngenid_info to observation_period

%%{init: {'theme': 'base' } }%%
%%{init: {'theme': 'base' } }%%
flowchart LR
    subgraph Source
        finngenid
        approx_birth_date
        fu_end_age
    end

    subgraph CDM-OMOP-v5.4
        person_id
        observation_period_start_date
        observation_period_end_date
    end

    finngenid-->person_id
    approx_birth_date-->observation_period_start_date
    fu_end_age-->observation_period_end_date

Destination Field	Source field	Logic	Comment field
observation_period_id		Incremental integer. Unique obsevation_period per each finngenid	Generated NOTE: at the moment there is only one observation period per person.
person_id	finngenid	person_id from person table where person.person_source_value equals finngenid	Calculated
observation_period_start_date	approx_birth_date	Copied from approx_birth_date Except if approx_birth_date is before the start of the first registry (1953-01-01) it is set to 1953-01-01	Calculated
observation_period_end_date	fu_end_age	Copied from fu_end_age Except if fu_end_age is before the start of the first registry (2023-01-15) it is set to 2023-01-15	Calculated
period_type_concept_id		Set 32879 - ‘Registry’ for all	Calculated