ddadmin
5efb833837
- Зачем:
- источник хранит мультиязычные названия как JSON ({"en": "...", "ru": "..."}),
- для упрощения downstream-логики (DDS/DM) нужны чистые строки на одном языке.
- Что:
- добавлен парсинг JSON с извлечением поля 'ru' в sql/ods/airports_load.sql
(airport_name, city, country).
- добавлен парсинг JSON с извлечением поля 'ru' в sql/ods/airplanes_load.sql
(model).
- обновлена документация docs/internal/bookings_ods_design.md с примечаниями
о нормализации.
- обновлены тестовые данные в tests/test_ods_snapshot_integration.py для
соответствия JSON-формату STG.
- Проверка:
- uv run make test (15 passed).
- SELECT airport_name FROM ods.airports → "Аль-Баха" (вместо JSON).
97 lines
3.2 KiB
SQL
97 lines
3.2 KiB
SQL
-- Загрузка ODS по airplanes: SCD1 (UPDATE изменившихся + INSERT новых).
|
|
|
|
-- Statement 1: UPDATE существующих строк.
|
|
-- Нормализация JSON: извлекаем русское название модели из поля с мультиязычностью.
|
|
-- Почему: источник хранит переводы как {"en": "...", "ru": "..."},
|
|
-- в ODS оставляем только один язык для упрощения downstream-логики.
|
|
WITH src AS (
|
|
SELECT
|
|
s.airplane_code,
|
|
s.model::json->>'ru' AS model,
|
|
NULLIF(s.range, '')::INTEGER AS range_km,
|
|
NULLIF(s.speed, '')::INTEGER AS speed_kmh,
|
|
ROW_NUMBER() OVER (
|
|
PARTITION BY s.airplane_code
|
|
ORDER BY s.load_dttm DESC, s.src_created_at_ts DESC NULLS LAST
|
|
) AS rn
|
|
FROM stg.airplanes AS s
|
|
WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
|
|
)
|
|
UPDATE ods.airplanes AS o
|
|
SET model = s.model,
|
|
range_km = s.range_km,
|
|
speed_kmh = s.speed_kmh,
|
|
_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.airplane_code = s.airplane_code
|
|
AND (
|
|
o.model IS DISTINCT FROM s.model
|
|
OR o.range_km IS DISTINCT FROM s.range_km
|
|
OR o.speed_kmh IS DISTINCT FROM s.speed_kmh
|
|
);
|
|
|
|
-- Statement 2: INSERT новых строк.
|
|
-- Нормализация JSON: извлекаем русское название модели из поля с мультиязычностью.
|
|
WITH src AS (
|
|
SELECT
|
|
s.airplane_code,
|
|
s.model::json->>'ru' AS model,
|
|
NULLIF(s.range, '')::INTEGER AS range_km,
|
|
NULLIF(s.speed, '')::INTEGER AS speed_kmh,
|
|
ROW_NUMBER() OVER (
|
|
PARTITION BY s.airplane_code
|
|
ORDER BY s.load_dttm DESC, s.src_created_at_ts DESC NULLS LAST
|
|
) AS rn
|
|
FROM stg.airplanes AS s
|
|
WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
|
|
)
|
|
INSERT INTO ods.airplanes (
|
|
airplane_code,
|
|
model,
|
|
range_km,
|
|
speed_kmh,
|
|
_load_id,
|
|
_load_ts
|
|
)
|
|
SELECT
|
|
s.airplane_code,
|
|
s.model,
|
|
s.range_km,
|
|
s.speed_kmh,
|
|
'{{ 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.airplanes AS o
|
|
WHERE o.airplane_code = s.airplane_code
|
|
);
|
|
|
|
-- Statement 3: DELETE ключей, которых нет в snapshot текущего батча.
|
|
-- Это делает ODS для справочника действительно "current state".
|
|
WITH src_keys AS (
|
|
SELECT d.airplane_code
|
|
FROM (
|
|
SELECT
|
|
s.airplane_code,
|
|
ROW_NUMBER() OVER (
|
|
PARTITION BY s.airplane_code
|
|
ORDER BY s.load_dttm DESC, s.src_created_at_ts DESC NULLS LAST
|
|
) AS rn
|
|
FROM stg.airplanes AS s
|
|
WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
|
|
) AS d
|
|
WHERE d.rn = 1
|
|
)
|
|
DELETE FROM ods.airplanes AS o
|
|
WHERE NOT EXISTS (
|
|
SELECT 1
|
|
FROM src_keys AS s
|
|
WHERE s.airplane_code = o.airplane_code
|
|
);
|
|
|
|
ANALYZE ods.airplanes;
|