/*********************************************************************************
# Copyright 2018-08 Observational Health Data Sciences and Informatics
#
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
********************************************************************************/

/************************

 ####### #     # ####### ######      #####  ######  #     #            #####        ###
 #     # ##   ## #     # #     #    #     # #     # ##   ##    #    # #     #      #   #
 #     # # # # # #     # #     #    #       #     # # # # #    #    # #           #     #
 #     # #  #  # #     # ######     #       #     # #  #  #    #    # ######      #     #
 #     # #     # #     # #          #       #     # #     #    #    # #     # ### #     #
 #     # #     # #     # #          #     # #     # #     #     #  #  #     # ###  #   #
 ####### #     # ####### #           #####  ######  #     #      ##    #####  ###   ###

impala script to create OMOP common data model version 6.0

last revised: 27-Aug-2018

Authors:  Patrick Ryan, Christian Reich, Clair Blacketer


*************************/


/************************

Standardized vocabulary

************************/


CREATE TABLE concept (
  concept_id			    INTEGER ,
  concept_name			  VARCHAR(255) ,
  domain_id				    VARCHAR(20) ,
  vocabulary_id			  VARCHAR(20) ,
  concept_class_id		VARCHAR(20) ,
  standard_concept		VARCHAR(1) ,
  concept_code			  VARCHAR(50) ,
  valid_start_date		TIMESTAMP ,
  valid_end_date		  TIMESTAMP ,
  invalid_reason		  VARCHAR(1)
)
;


CREATE TABLE vocabulary (
  vocabulary_id			    VARCHAR(20),
  vocabulary_name		    VARCHAR(255),
  vocabulary_reference	VARCHAR(255),
  vocabulary_version	  VARCHAR(255),
  vocabulary_concept_id	INTEGER
)
;


CREATE TABLE domain (
  domain_id			    VARCHAR(20),
  domain_name		    VARCHAR(255),
  domain_concept_id	INTEGER
)
;


CREATE TABLE concept_class (
  concept_class_id			    VARCHAR(20),
  concept_class_name		    VARCHAR(255),
  concept_class_concept_id	INTEGER
)
;


CREATE TABLE concept_relationship (
  concept_id_1			INTEGER	,
  concept_id_2			INTEGER	,
  relationship_id		VARCHAR(20),
  valid_start_date	TIMESTAMP,
  valid_end_date		TIMESTAMP,
  invalid_reason		VARCHAR(1)
  )
;


CREATE TABLE relationship (
  relationship_id			    VARCHAR(20),
  relationship_name			  VARCHAR(255),
  is_hierarchical			    VARCHAR(1),
  defines_ancestry			  VARCHAR(1),
  reverse_relationship_id	VARCHAR(20),
  relationship_concept_id	INTEGER
)
;


CREATE TABLE concept_synonym (
  concept_id			      INTEGER	,
  concept_synonym_name	STRING,
  language_concept_id	  INTEGER
)
;


CREATE TABLE concept_ancestor (
  ancestor_concept_id		    INTEGER	,
  descendant_concept_id		  INTEGER	,
  min_levels_of_separation	INTEGER	,
  max_levels_of_separation	INTEGER
)
;


CREATE TABLE source_to_concept_map (
  source_code				      VARCHAR(50),
  source_concept_id			  INTEGER	,
  source_vocabulary_id		VARCHAR(20),
  source_code_description	VARCHAR(255),
  target_concept_id			  INTEGER	,
  target_vocabulary_id		VARCHAR(20),
  valid_start_date			  TIMESTAMP,
  valid_end_date			    TIMESTAMP,
  invalid_reason			    VARCHAR(1)
)
;


CREATE TABLE drug_strength (
  drug_concept_id				      INTEGER	,
  ingredient_concept_id			  INTEGER	,
  amount_value					      FLOAT,
  amount_unit_concept_id		  INTEGER	,
  numerator_value				      FLOAT,
  numerator_unit_concept_id		INTEGER	,
  denominator_value				    FLOAT,
  denominator_unit_concept_id	INTEGER	,
  box_size						        INTEGER	,
  valid_start_date				    TIMESTAMP,
  valid_end_date				      TIMESTAMP,
  invalid_reason				      VARCHAR(1)
)
;


CREATE TABLE cohort_definition (
  cohort_definition_id				    INTEGER	,
  cohort_definition_name			    VARCHAR(255),
  cohort_definition_description		STRING,
  definition_type_concept_id		  INTEGER	,
  cohort_definition_syntax			  STRING,
  subject_concept_id				      INTEGER	,
  cohort_initiation_date			    TIMESTAMP
)
;


CREATE TABLE attribute_definition (
  attribute_definition_id		  INTEGER	,
  attribute_name				      VARCHAR(255),
  attribute_description			  STRING,
  attribute_type_concept_id		INTEGER	,
  attribute_syntax				    STRING
)
;


/**************************

Standardized meta-data

***************************/


CREATE TABLE cdm_source
(
  cdm_source_name					        VARCHAR(255) ,
  cdm_source_abbreviation			    VARCHAR(25) ,
  cdm_holder							        VARCHAR(255) ,
  source_description					    STRING ,
  source_documentation_reference	VARCHAR(255) ,
  cdm_etl_reference					      VARCHAR(255) ,
  source_release_date				      TIMESTAMP ,
  cdm_release_date					      TIMESTAMP ,
  cdm_version						          VARCHAR(10) ,
  vocabulary_version					    VARCHAR(20)
)
;


CREATE TABLE `metadata`
(
  metadata_concept_id       INTEGER ,
  metadata_type_concept_id  INTEGER ,
  name                      VARCHAR(250) ,
  value_as_string           STRING ,
  value_as_concept_id       INTEGER ,
  metadata_date             TIMESTAMP ,
  metadata_datetime         TIMESTAMP
)
;

INSERT INTO metadata (name, value_as_string) --Added cdm version record
VALUES ('CDM Version', '6.0')
;


/************************

Standardized clinical data

************************/


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE person
(
  person_id						        BIGINT , --BIGINTs added
  gender_concept_id				    INTEGER ,
  year_of_birth					      INTEGER	,
  month_of_birth				      INTEGER	,
  day_of_birth					      INTEGER	,
  birth_datetime				      TIMESTAMP	,
  race_concept_id				      INTEGER	,
  ethnicity_concept_id			  INTEGER	,
  location_id					        INTEGER	,
  provider_id					        INTEGER	,
  care_site_id					      INTEGER	,
  person_source_value			    VARCHAR(50),
  gender_source_value			    VARCHAR(50),
  gender_source_concept_id	  INTEGER	,
  race_source_value				    VARCHAR(50),
  race_source_concept_id		  INTEGER	,
  ethnicity_source_value		  VARCHAR(50),
  ethnicity_source_concept_id	INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE observation_period
(
  observation_period_id				      BIGINT ,
  person_id							            BIGINT ,
  observation_period_start_date		  TIMESTAMP ,
  observation_period_end_date		    TIMESTAMP ,
  period_type_concept_id			      INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE specimen
(
  specimen_id						      BIGINT ,
  person_id							      BIGINT ,
  specimen_concept_id				  INTEGER	,
  specimen_type_concept_id		INTEGER	,
  specimen_date						    TIMESTAMP ,
  specimen_datetime					  TIMESTAMP	,
  quantity							      FLOAT ,
  unit_concept_id					    INTEGER	,
  anatomic_site_concept_id		INTEGER	,
  disease_status_concept_id		INTEGER	,
  specimen_source_id				  VARCHAR(50) ,
  specimen_source_value				VARCHAR(50) ,
  unit_source_value					  VARCHAR(50) ,
  anatomic_site_source_value	VARCHAR(50) ,
  disease_status_source_value VARCHAR(50)
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE death
(
  person_id							  BIGINT ,
  death_date							TIMESTAMP ,
  death_datetime					TIMESTAMP	,
  death_type_concept_id   INTEGER	,
  cause_concept_id			  INTEGER	,
  cause_source_value			VARCHAR(50),
  cause_source_concept_id INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE visit_occurrence
(
  visit_occurrence_id			      BIGINT ,
  person_id						          BIGINT ,
  visit_concept_id				      INTEGER	,
  visit_start_date				      TIMESTAMP ,
  visit_start_datetime				  TIMESTAMP	,
  visit_end_date					      TIMESTAMP ,
  visit_end_datetime					  TIMESTAMP	,
  visit_type_concept_id			    INTEGER	,
  provider_id					          INTEGER	,
  care_site_id					        INTEGER	,
  visit_source_value				    VARCHAR(50),
  visit_source_concept_id		    INTEGER	,
  admitted_from_concept_id      INTEGER ,   /*Changed from admitting_source_* */
  admitted_from_source_value    VARCHAR(50),
  discharge_to_source_value		  VARCHAR(50) ,
  discharge_to_concept_id		    INTEGER ,
  preceding_visit_occurrence_id	INTEGER
)
;

--todo admitting 'source'
--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE visit_detail
(
  visit_detail_id                    BIGINT ,
  person_id                          BIGINT ,
  visit_detail_concept_id            INTEGER ,
  visit_detail_start_date            TIMESTAMP ,
  visit_detail_start_datetime        TIMESTAMP ,
  visit_detail_end_date              TIMESTAMP ,
  visit_detail_end_datetime          TIMESTAMP ,
  visit_detail_type_concept_id       INTEGER   ,
  provider_id                        INTEGER   ,
  care_site_id                       INTEGER   ,
  discharge_to_concept_id            INTEGER   ,
  admitted_from_concept_id           INTEGER   , /*Changed from admitting_source_* */
  admitted_from_source_value         VARCHAR(50) ,
  visit_detail_source_value          VARCHAR(50) ,
  visit_detail_source_concept_id     INTEGER ,
  discharge_to_source_value          VARCHAR(50) ,
  preceding_visit_detail_id          BIGINT ,
  visit_detail_parent_id             BIGINT ,
  visit_occurrence_id                BIGINT
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE procedure_occurrence
(
  procedure_occurrence_id		  BIGINT ,
  person_id						        BIGINT ,
  procedure_concept_id			  INTEGER	,
  procedure_date				      TIMESTAMP ,
  procedure_datetime			    TIMESTAMP	,
  procedure_type_concept_id		INTEGER	,
  modifier_concept_id			    INTEGER	,
  quantity						        INTEGER	,
  provider_id					        INTEGER	,
  visit_occurrence_id			    INTEGER	,
  visit_detail_id             INTEGER ,
  procedure_source_value		  VARCHAR(50) ,
  procedure_source_concept_id	INTEGER	,
  modifier_source_value		    VARCHAR(50) ,
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE drug_exposure
(
  drug_exposure_id				      BIGINT ,
  person_id						          BIGINT ,
  drug_concept_id				        INTEGER	,
  drug_exposure_start_date		  TIMESTAMP ,
  drug_exposure_start_datetime  TIMESTAMP	,
  drug_exposure_end_date		    TIMESTAMP ,
  drug_exposure_end_datetime	  TIMESTAMP	,
  verbatim_end_date				      TIMESTAMP ,
  drug_type_concept_id			    INTEGER		,
  stop_reason					          VARCHAR(20) ,
  refills						            INTEGER	,
  quantity						          FLOAT ,
  days_supply					          INTEGER	,
  sig							              STRING ,
  route_concept_id				      INTEGER	,
  lot_number					          VARCHAR(50) ,
  provider_id					          INTEGER	,
  visit_occurrence_id			      INTEGER	,
  visit_detail_id               INTEGER ,
  drug_source_value				      VARCHAR(50) ,
  drug_source_concept_id		    INTEGER	,
  route_source_value			      VARCHAR(50) ,
  dose_unit_source_value		    VARCHAR(50)
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE device_exposure
(
  device_exposure_id			        BIGINT ,
  person_id						            BIGINT ,
  device_concept_id			        	INTEGER	,
  device_exposure_start_date	    TIMESTAMP ,
  device_exposure_start_datetime  TIMESTAMP	,
  device_exposure_end_date		    TIMESTAMP ,
  device_exposure_end_datetime    TIMESTAMP	,
  device_type_concept_id		      INTEGER		,
  unique_device_id			        	VARCHAR(50) ,
  quantity						            INTEGER		,
  provider_id					            INTEGER		,
  visit_occurrence_id			        INTEGER		,
  visit_detail_id                 INTEGER   ,
  device_source_value			        VARCHAR(100) ,
  device_source_concept_id		    INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE condition_occurrence
(
  condition_occurrence_id		    BIGINT ,
  person_id						          BIGINT ,
  condition_concept_id			    INTEGER	,
  condition_start_date			    TIMESTAMP ,
  condition_start_datetime		  TIMESTAMP	,
  condition_end_date			      TIMESTAMP ,
  condition_end_datetime		    TIMESTAMP	,
  condition_type_concept_id		  INTEGER	,
  condition_status_concept_id	  INTEGER	,
  stop_reason					          VARCHAR(20) ,
  provider_id					          INTEGER	,
  visit_occurrence_id			      INTEGER	,
  visit_detail_id               INTEGER ,
  condition_source_value		    VARCHAR(50) ,
  condition_source_concept_id	  INTEGER	,
  condition_status_source_value	VARCHAR(50)
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE measurement
(
  measurement_id				        BIGINT ,
  person_id						          BIGINT ,
  measurement_concept_id		    INTEGER	,
  measurement_date				      TIMESTAMP ,
  measurement_datetime			    TIMESTAMP	,
  measurement_time              VARCHAR(10),
  measurement_type_concept_id	  INTEGER		,
  operator_concept_id			      INTEGER		,
  value_as_number				        FLOAT ,
  value_as_concept_id			      INTEGER		,
  unit_concept_id				        INTEGER		,
  range_low					          	FLOAT ,
  range_high					          FLOAT ,
  provider_id					          INTEGER		,
  visit_occurrence_id			      INTEGER		,
  visit_detail_id               INTEGER   ,
  measurement_source_value		  VARCHAR(50) ,
  measurement_source_concept_id	INTEGER		,
  unit_source_value				      VARCHAR(50) ,
  value_source_value			      VARCHAR(50)
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE note
(
  note_id						    BIGINT ,
  person_id						  BIGINT ,
  note_event_id         BIGINT , --This and the field below added
  note_domain_id        VARCHAR(20) , --This field may be removed in favor of the one below
--note_event_table_concept_id INTEGER , --This may be added based on 9/4 meeting
  note_date						  TIMESTAMP ,
  note_datetime					TIMESTAMP	,
  note_type_concept_id	INTEGER	,
  note_class_concept_id INTEGER	,
  note_title					  VARCHAR(250) ,
  note_text						  STRING ,
  encoding_concept_id		INTEGER	,
  language_concept_id		INTEGER	,
  provider_id					  INTEGER	,
  visit_occurrence_id		INTEGER	,
  visit_detail_id       INTEGER ,
  note_source_value			VARCHAR(50)
)
;



CREATE TABLE note_nlp
(
  note_nlp_id					        BIGINT ,
  note_id						          BIGINT ,
  section_concept_id			    INTEGER	,
  snippet						          VARCHAR(250) ,
  `offset`					          VARCHAR(250) ,
  lexical_variant				      VARCHAR(250) ,
  note_nlp_concept_id			    INTEGER	,
  nlp_system					        VARCHAR(250) ,
  nlp_date						        TIMESTAMP ,
  nlp_datetime					      TIMESTAMP	,
  term_exists					        VARCHAR(1) ,
  term_temporal					      VARCHAR(50) ,
  term_modifiers				      VARCHAR(2000) ,
  note_nlp_source_concept_id  INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE observation
(
  observation_id					        BIGINT ,
  person_id						            BIGINT ,
  observation_concept_id			    INTEGER	,
  observation_date				        TIMESTAMP ,
  observation_datetime				    TIMESTAMP	,
  observation_type_concept_id	    INTEGER	,
  value_as_number				          FLOAT ,
  value_as_string				          VARCHAR(60) ,
  value_as_concept_id			        INTEGER	,
  qualifier_concept_id			      INTEGER	,
  unit_concept_id				          INTEGER	,
  provider_id					            INTEGER	,
  visit_occurrence_id			        BIGINT ,
  visit_detail_id               	BIGINT ,
  observation_source_value		  	VARCHAR(50) ,
  observation_source_concept_id		INTEGER	,
  unit_source_value				        VARCHAR(50) ,
  qualifier_source_value			    VARCHAR(50) ,
  observation_event_id				    BIGINT , /* This will link back to the event table (SURVEY) on SURVEY_OCCURRENCE_ID, changed name to comply with COST and NOTE*/
  observation_event_domain_id			VARCHAR(20) ,
  --obs_event_table_concept_id			INTEGER	, /* Changed name to comply with COST and NOTE. This should be 'Survey'. Had to use 'obs' for oracle restriction, may be added on 9/4*/
  value_as_datetime					      TIMESTAMP
)
;


CREATE TABLE survey_conduct
(
  survey_conduct_id					  BIGINT ,
  person_id						            BIGINT ,
  survey_concept_id			  			  INTEGER	,
  survey_start_date				     	  TIMESTAMP ,
  survey_start_datetime				  	TIMESTAMP	,
  survey_end_date						      TIMESTAMP ,
  survey_end_datetime					    TIMESTAMP	,
  provider_id							        BIGINT ,
  assisted_concept_id	  				  INTEGER	,
  respondent_type_concept_id			INTEGER	,
  timing_concept_id						    INTEGER	,
  collection_method_concept_id		INTEGER	,
  assisted_source_value		  			VARCHAR(50) ,
  respondent_type_source_value		VARCHAR(100) ,
  timing_source_value					    VARCHAR(100) ,
  collection_method_source_value	VARCHAR(100) ,
  survey_source_value					    VARCHAR(100) ,
  survey_source_concept_id				INTEGER	,
  survey_source_identifier				VARCHAR(100) ,
  validated_survey_concept_id			INTEGER	,
  validated_survey_source_value		VARCHAR(100) ,
  survey_version_number					  VARCHAR(20) ,
  visit_occurrence_id					    BIGINT ,
  visit_detail_id					BIGINT ,
  response_to_visit_occurrence_id	BIGINT
)
;



CREATE TABLE fact_relationship
(
  domain_concept_id_1			INTEGER	,
  fact_id_1						    BIGINT ,
  domain_concept_id_2			INTEGER	,
  fact_id_2						    BIGINT ,
  relationship_concept_id	INTEGER
)
;



/************************

Standardized health system data

************************/


CREATE TABLE location
(
  location_id					  BIGINT ,
  address_1						  VARCHAR(50) ,
  address_2						  VARCHAR(50) ,
  city							    VARCHAR(50) ,
  state							    VARCHAR(2) ,
  zip							      VARCHAR(9) ,
  county						    VARCHAR(20) ,
  country						    VARCHAR(100) ,
  location_source_value VARCHAR(50) ,
  latitude						  FLOAT ,
  longitude						  FLOAT
)
;

CREATE TABLE location_history
(
  location_history_id           BIGINT ,
  location_id			              BIGINT ,
  relationship_type_concept_id	INTEGER	,  --Recent addition based on github discussion
  domain_id				              VARCHAR(50) ,
  entity_id				              BIGINT ,
  start_date			              TIMESTAMP ,
  end_date				              TIMESTAMP
)
;


CREATE TABLE care_site
(
  care_site_id						      BIGINT ,
  care_site_name						    VARCHAR(255) ,
  place_of_service_concept_id	  INTEGER	,
  location_id						        BIGINT ,
  care_site_source_value			  VARCHAR(50) ,
  place_of_service_source_value VARCHAR(50)
)
;


CREATE TABLE provider
(
  provider_id					        BIGINT ,
  provider_name					      VARCHAR(255) ,
  NPI							            VARCHAR(20) ,
  DEA							            VARCHAR(20) ,
  specialty_concept_id			  INTEGER	,
  care_site_id					      BIGINT ,
  year_of_birth					      INTEGER	,
  gender_concept_id				    INTEGER	,
  provider_source_value			  VARCHAR(50) ,
  specialty_source_value			VARCHAR(50) ,
  specialty_source_concept_id	INTEGER	,
  gender_source_value			    VARCHAR(50) ,
  gender_source_concept_id		INTEGER
)
;


/************************

Standardized health economics

************************/


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE payer_plan_period
(
  payer_plan_period_id			    BIGINT ,
  person_id						          BIGINT ,
  contract_person_id            BIGINT ,
  payer_plan_period_start_date  TIMESTAMP ,
  payer_plan_period_end_date		TIMESTAMP ,
  payer_concept_id              INTEGER ,
  plan_concept_id               INTEGER ,
  contract_concept_id           INTEGER ,
  sponsor_concept_id            INTEGER ,
  stop_reason_concept_id        INTEGER ,
  payer_source_value				    VARCHAR(50) ,
  payer_source_concept_id       INTEGER ,
  plan_source_value				      VARCHAR(50) ,
  plan_source_concept_id        INTEGER ,
  contract_source_value         VARCHAR(50) ,
  contract_source_concept_id    INTEGER ,
  sponsor_source_value          VARCHAR(50) ,
  sponsor_source_concept_id     INTEGER ,
  family_source_value			      VARCHAR(50) ,
  stop_reason_source_value      VARCHAR(50) ,
  stop_reason_source_concept_id INTEGER
)
;


CREATE TABLE cost
(
  cost_id						        BIGINT ,
  person_id						      BIGINT,
  cost_event_id					    BIGINT ,
  cost_domain_id				    VARCHAR(20) ,
--cost_event_table_concept_id	INTEGER	, /*This is still in discussion and most likely will replace cost_domain_id at 9/4 meeting*/
  cost_concept_id				    INTEGER	,
  cost_type_concept_id		  INTEGER ,
  currency_concept_id			  INTEGER	,
  cost							        FLOAT ,
  incurred_date					    TIMESTAMP ,
  billed_date					      TIMESTAMP ,
  paid_date						      TIMESTAMP ,
  revenue_code_concept_id		INTEGER	,
  drg_concept_id			      INTEGER	,
  cost_source_value				  VARCHAR(50) ,
  cost_source_concept_id	  INTEGER	,
  revenue_code_source_value VARCHAR(50) ,
  drg_source_value			    VARCHAR(3) ,
  payer_plan_period_id			BIGINT
)
;


/************************

Standardized derived elements

************************/


--HINT DISTRIBUTE_ON_KEY(subject_id)
CREATE TABLE cohort
(
  cohort_definition_id	BIGINT ,
  subject_id						BIGINT ,
  cohort_start_date			TIMESTAMP ,
  cohort_end_date				TIMESTAMP
)
;


--HINT DISTRIBUTE_ON_KEY(subject_id)
CREATE TABLE cohort_attribute
(
  cohort_definition_id		BIGINT ,
  subject_id						  BIGINT ,
  cohort_start_date				TIMESTAMP ,
  cohort_end_date				  TIMESTAMP ,
  attribute_definition_id BIGINT ,
  value_as_number				  FLOAT ,
  value_as_concept_id			INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE drug_era
(
  drug_era_id					BIGINT ,
  person_id						BIGINT ,
  drug_concept_id			INTEGER	,
  drug_era_start_date	TIMESTAMP ,
  drug_era_end_date		TIMESTAMP ,
  drug_exposure_count	INTEGER	,
  gap_days						INTEGER
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE dose_era
(
  dose_era_id					  BIGINT ,
  person_id						  BIGINT ,
  drug_concept_id				INTEGER	,
  unit_concept_id				INTEGER	,
  dose_value						FLOAT ,
  dose_era_start_date		TIMESTAMP ,
  dose_era_end_date	    TIMESTAMP
)
;


--HINT DISTRIBUTE_ON_KEY(person_id)
CREATE TABLE condition_era
(
  condition_era_id				    BIGINT ,
  person_id						        BIGINT ,
  condition_concept_id			  INTEGER	,
  condition_era_start_date		TIMESTAMP ,
  condition_era_end_date			TIMESTAMP ,
  condition_occurrence_count	INTEGER
)
;