Schema

Raw Schema

Column Name	Data Type	Description	Example
_ingest_time	timestamp	Timestamp of data ingestion	’2026-04-10 12:00:00’
emis_observation_guid	varchar	Unique identifier for the observation	’obs-12345’
exa_observation_guid	varchar	External unique identifier for the observation	’ext-obs-67890’
emis_drug_guid	varchar	Unique identifier for the drug record	’drug-54321’
exa_drug_guid	varchar	External unique identifier for the drug record	’ext-drug-98765’
entered_date	date	Date when the link was recorded	’2026-01-02’
entered_time	time	Time when the link was recorded	’12:34:56’
emis_registration_guid	varchar	Registration identifier	’reg-98765’
patient_id	varchar	Unique identifier for the patient	’pat-54321’
confidential_flag	boolean	Indicates if the data is confidential	true
execution_date	date	Date of execution	’2026-04-10’
study_id	varchar	Study identifier	’study-12345’