text: CREATE TABLE #Codesets (
  
    codeset_id int NOT NULL,
  
    concept_id bigint NOT NULL
  
  )
  
  ;
  
  
  
  INSERT INTO #Codesets (codeset_id, concept_id)
  SELECT 0 as codeset_id, c.concept_id FROM (select distinct I.concept_id FROM
  
  ( 
  
    select concept_id from @vocabulary_database_schema.CONCEPT where concept_id in (4150156,440689,4322386,4174297,4211401,432289,320073,4119158,4190716,4135712)and invalid_reason is null
  
  
  
  ) I
  
  ) C;
  
  
  
  
  
  with primary_events (event_id, person_id, start_date, end_date, op_start_date, op_end_date, visit_occurrence_id) as
  
  (
  
  -- Begin Primary Events
  
  select P.ordinal as event_id, P.person_id, P.start_date, P.end_date, op_start_date, op_end_date, cast(P.visit_occurrence_id as bigint) as visit_occurrence_id
  
  FROM
  
  (
  
    select E.person_id, E.start_date, E.end_date, row_number() OVER (PARTITION BY E.person_id ORDER BY E.start_date ASC) ordinal, OP.observation_period_start_date as op_start_date, OP.observation_period_end_date as op_end_date, cast(E.visit_occurrence_id as bigint) as visit_occurrence_id
  
    FROM 
  
    (
  
    -- Begin Condition Occurrence Criteria
  
  SELECT C.person_id, C.condition_occurrence_id as event_id, C.condition_start_date as start_date, COALESCE(C.condition_end_date, DATEADD(day,1,C.condition_start_date)) as end_date, C.CONDITION_CONCEPT_ID as TARGET_CONCEPT_ID, C.visit_occurrence_id
  
  FROM 
  
  (
  
    SELECT co.* , row_number() over (PARTITION BY co.person_id ORDER BY co.condition_start_date, co.condition_occurrence_id) as ordinal
  
    FROM @cdm_database_schema.CONDITION_OCCURRENCE co
  
    JOIN #Codesets codesets on ((co.condition_concept_id = codesets.concept_id and codesets.codeset_id = 0))
  
  ) C
  
  
  
  WHERE C.ordinal = 1
  
  -- End Condition Occurrence Criteria
  
  
  
    ) E
  
  	JOIN @cdm_database_schema.observation_period OP on E.person_id = OP.person_id and E.start_date >=  OP.observation_period_start_date and E.start_date <= op.observation_period_end_date
  
    WHERE DATEADD(day,0,OP.OBSERVATION_PERIOD_START_DATE) <= E.START_DATE AND DATEADD(day,0,E.START_DATE) <= OP.OBSERVATION_PERIOD_END_DATE
  
  ) P
  
  WHERE P.ordinal = 1
  
  -- End Primary Events
  
  
  
  )
  
  SELECT event_id, person_id, start_date, end_date, op_start_date, op_end_date, visit_occurrence_id
  
  INTO #qualified_events
  
  FROM 
  
  (
  
    select pe.event_id, pe.person_id, pe.start_date, pe.end_date, pe.op_start_date, pe.op_end_date, row_number() over (partition by pe.person_id order by pe.start_date ASC) as ordinal, cast(pe.visit_occurrence_id as bigint) as visit_occurrence_id
  
    FROM primary_events pe
  
    
  
  ) QE
  
  
  
  ;
  
  
  
  --- Inclusion Rule Inserts
  
  
  
  create table #inclusion_events (inclusion_rule_id bigint,
  	person_id bigint,
  	event_id bigint
  );
  
  
  
  with cteIncludedEvents(event_id, person_id, start_date, end_date, op_start_date, op_end_date, ordinal) as
  
  (
  
    SELECT event_id, person_id, start_date, end_date, op_start_date, op_end_date, row_number() over (partition by person_id order by start_date ASC) as ordinal
  
    from
  
    (
  
      select Q.event_id, Q.person_id, Q.start_date, Q.end_date, Q.op_start_date, Q.op_end_date, SUM(coalesce(POWER(cast(2 as bigint), I.inclusion_rule_id), 0)) as inclusion_rule_mask
  
      from #qualified_events Q
  
      LEFT JOIN #inclusion_events I on I.person_id = Q.person_id and I.event_id = Q.event_id
  
      GROUP BY Q.event_id, Q.person_id, Q.start_date, Q.end_date, Q.op_start_date, Q.op_end_date
  
    ) MG -- matching groups
  
  
  
  )
  
  select event_id, person_id, start_date, end_date, op_start_date, op_end_date
  
  into #included_events
  
  FROM cteIncludedEvents Results
  
  WHERE Results.ordinal = 1
  
  ;
  
  
  
  
  
  
  
  -- generate cohort periods into #final_cohort
  
  with cohort_ends (event_id, person_id, end_date) as
  
  (
  
  	-- cohort exit dates
  
    -- By default, cohort exit at the event's op end date
  select event_id, person_id, op_end_date as end_date from #included_events
  
  ),
  
  first_ends (person_id, start_date, end_date) as
  
  (
  
  	select F.person_id, F.start_date, F.end_date
  
  	FROM (
  
  	  select I.event_id, I.person_id, I.start_date, E.end_date, row_number() over (partition by I.person_id, I.event_id order by E.end_date) as ordinal 
  
  	  from #included_events I
  
  	  join cohort_ends E on I.event_id = E.event_id and I.person_id = E.person_id and E.end_date >= I.start_date
  
  	) F
  
  	WHERE F.ordinal = 1
  
  )
  
  select person_id, start_date, end_date
  
  INTO #cohort_rows
  
  from first_ends;
  
  
  
  with cteEndDates (person_id, end_date) AS -- the magic
  
  (	
  
  	SELECT
  
  		person_id
  
  		, DATEADD(day,-1 * 0, event_date)  as end_date
  
  	FROM
  
  	(
  
  		SELECT
  
  			person_id
  
  			, event_date
  
  			, event_type
  
  			, MAX(start_ordinal) OVER (PARTITION BY person_id ORDER BY event_date, event_type ROWS UNBOUNDED PRECEDING) AS start_ordinal 
  
  			, ROW_NUMBER() OVER (PARTITION BY person_id ORDER BY event_date, event_type) AS overall_ord
  
  		FROM
  
  		(
  
  			SELECT
  
  				person_id
  
  				, start_date AS event_date
  
  				, -1 AS event_type
  
  				, ROW_NUMBER() OVER (PARTITION BY person_id ORDER BY start_date) AS start_ordinal
  
  			FROM #cohort_rows
  
  		
  
  			UNION ALL
  
  		
  
  
  
  			SELECT
  
  				person_id
  
  				, DATEADD(day,0,end_date) as end_date
  
  				, 1 AS event_type
  
  				, NULL
  
  			FROM #cohort_rows
  
  		) RAWDATA
  
  	) e
  
  	WHERE (2 * e.start_ordinal) - e.overall_ord = 0
  
  ),
  
  cteEnds (person_id, start_date, end_date) AS
  
  (
  
  	SELECT
  
  		 c.person_id
  
  		, c.start_date
  
  		, MIN(e.end_date) AS era_end_date
  
  	FROM #cohort_rows c
  
  	JOIN cteEndDates e ON c.person_id = e.person_id AND e.end_date >= c.start_date
  
  	GROUP BY c.person_id, c.start_date
  
  )
  
  select person_id, min(start_date) as start_date, end_date
  
  into #final_cohort
  
  from cteEnds
  
  group by person_id, end_date
  
  ;
  
  
  
  DELETE FROM @target_database_schema.@target_cohort_table where cohort_definition_id = @target_cohort_id;
  
  INSERT INTO @target_database_schema.@target_cohort_table (cohort_definition_id, subject_id, cohort_start_date, cohort_end_date)
  
  select @target_cohort_id as cohort_definition_id, person_id, start_date, end_date 
  FROM #final_cohort CO
  
  ;
  
  
  
  
  
  
  
  
  
  
  
  TRUNCATE TABLE #cohort_rows;
  
  DROP TABLE #cohort_rows;
  
  
  
  TRUNCATE TABLE #final_cohort;
  
  DROP TABLE #final_cohort;
  
  
  
  TRUNCATE TABLE #inclusion_events;
  
  DROP TABLE #inclusion_events;
  
  
  
  TRUNCATE TABLE #qualified_events;
  
  DROP TABLE #qualified_events;
  
  
  
  TRUNCATE TABLE #included_events;
  
  DROP TABLE #included_events;
  
  
  
  TRUNCATE TABLE #Codesets;
  
  DROP TABLE #Codesets;
  
  
  