ddadmin
85fea19818
- Зачем: - подготовлена учебная реализация ODS слоя с типизацией, UPSERT и DQ, чтобы продолжить работу от STG к DDS/DM. - Что: - добавлены SQL-скрипты `sql/ods/*_ddl.sql`, `sql/ods/*_load.sql`, `sql/ods/*_dq.sql` для 9 сущностей bookings. - добавлены DAG `bookings_ods_ddl` и `bookings_to_gp_ods`, а также smoke-тесты для новых графов. - ODS DDL интегрирован в `sql/ddl_gp.sql`; документация и план обновлены под единый запуск через `make ddl-gp`. - Проверка: - `make test`. - `make ddl-gp`.
76 lines
2.3 KiB
SQL
76 lines
2.3 KiB
SQL
-- Загрузка ODS по segments: SCD1 (UPDATE изменившихся + INSERT новых).
|
|
|
|
-- Statement 1: UPDATE существующих строк.
|
|
WITH src AS (
|
|
SELECT
|
|
s.ticket_no,
|
|
NULLIF(s.flight_id, '')::INTEGER AS flight_id,
|
|
s.fare_conditions,
|
|
NULLIF(s.price, '')::NUMERIC(10,2) AS segment_amount,
|
|
s.src_created_at_ts AS event_ts,
|
|
ROW_NUMBER() OVER (
|
|
PARTITION BY s.ticket_no, s.flight_id
|
|
ORDER BY s.src_created_at_ts DESC NULLS LAST, s.load_dttm DESC
|
|
) AS rn
|
|
FROM stg.segments AS s
|
|
WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
|
|
)
|
|
UPDATE ods.segments AS o
|
|
SET fare_conditions = s.fare_conditions,
|
|
segment_amount = s.segment_amount,
|
|
event_ts = s.event_ts,
|
|
_load_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text,
|
|
_load_ts = now()
|
|
FROM src AS s
|
|
WHERE s.rn = 1
|
|
AND o.ticket_no = s.ticket_no
|
|
AND o.flight_id = s.flight_id
|
|
AND (
|
|
o.fare_conditions IS DISTINCT FROM s.fare_conditions
|
|
OR o.segment_amount IS DISTINCT FROM s.segment_amount
|
|
OR o.event_ts IS DISTINCT FROM s.event_ts
|
|
);
|
|
|
|
-- Statement 2: INSERT новых строк.
|
|
WITH src AS (
|
|
SELECT
|
|
s.ticket_no,
|
|
NULLIF(s.flight_id, '')::INTEGER AS flight_id,
|
|
s.fare_conditions,
|
|
NULLIF(s.price, '')::NUMERIC(10,2) AS segment_amount,
|
|
s.src_created_at_ts AS event_ts,
|
|
ROW_NUMBER() OVER (
|
|
PARTITION BY s.ticket_no, s.flight_id
|
|
ORDER BY s.src_created_at_ts DESC NULLS LAST, s.load_dttm DESC
|
|
) AS rn
|
|
FROM stg.segments AS s
|
|
WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
|
|
)
|
|
INSERT INTO ods.segments (
|
|
ticket_no,
|
|
flight_id,
|
|
fare_conditions,
|
|
segment_amount,
|
|
event_ts,
|
|
_load_id,
|
|
_load_ts
|
|
)
|
|
SELECT
|
|
s.ticket_no,
|
|
s.flight_id,
|
|
s.fare_conditions,
|
|
s.segment_amount,
|
|
s.event_ts,
|
|
'{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text,
|
|
now()
|
|
FROM src AS s
|
|
WHERE s.rn = 1
|
|
AND NOT EXISTS (
|
|
SELECT 1
|
|
FROM ods.segments AS o
|
|
WHERE o.ticket_no = s.ticket_no
|
|
AND o.flight_id = s.flight_id
|
|
);
|
|
|
|
ANALYZE ods.segments;
|