feat(ods): реализован ODS слой и DAG загрузки из STG

- 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`.
2026-02-23 01:51:40 +03:00
parent dc1dc9c66a
commit 03765d2808
37 changed files with 2704 additions and 25 deletions
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+-- Загрузка ODS по bookings: SCD1 (UPDATE изменившихся + INSERT новых).
+
+-- Statement 1: UPDATE существующих строк.
+WITH src AS (
+    SELECT
+        s.book_ref,
+        NULLIF(s.book_date, '')::TIMESTAMP WITH TIME ZONE AS book_date,
+        NULLIF(s.total_amount, '')::NUMERIC(10,2)         AS total_amount,
+        s.src_created_at_ts                                AS event_ts,
+        ROW_NUMBER() OVER (
+            PARTITION BY s.book_ref
+            ORDER BY s.src_created_at_ts DESC NULLS LAST, s.load_dttm DESC
+        ) AS rn
+    FROM stg.bookings AS s
+    WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
+)
+UPDATE ods.bookings AS o
+SET book_date    = s.book_date,
+    total_amount = s.total_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.book_ref = s.book_ref
+    AND (
+        o.book_date IS DISTINCT FROM s.book_date
+        OR o.total_amount IS DISTINCT FROM s.total_amount
+        OR o.event_ts IS DISTINCT FROM s.event_ts
+    );
+
+-- Statement 2: INSERT новых строк.
+WITH src AS (
+    SELECT
+        s.book_ref,
+        NULLIF(s.book_date, '')::TIMESTAMP WITH TIME ZONE AS book_date,
+        NULLIF(s.total_amount, '')::NUMERIC(10,2)         AS total_amount,
+        s.src_created_at_ts                                AS event_ts,
+        ROW_NUMBER() OVER (
+            PARTITION BY s.book_ref
+            ORDER BY s.src_created_at_ts DESC NULLS LAST, s.load_dttm DESC
+        ) AS rn
+    FROM stg.bookings AS s
+    WHERE s.batch_id = '{{ ti.xcom_pull(task_ids="resolve_stg_batch_id") }}'::text
+)
+INSERT INTO ods.bookings (
+    book_ref,
+    book_date,
+    total_amount,
+    event_ts,
+    _load_id,
+    _load_ts
+)
+SELECT
+    s.book_ref,
+    s.book_date,
+    s.total_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.bookings AS o
+        WHERE o.book_ref = s.book_ref
+    );
+
+ANALYZE ods.bookings;