ddadmin
d25c753eb4
- Зачем: - подготовлен учебный Star Schema слой для перехода от ODS к аналитике и витринам. - Что: - добавлены 21 SQL-файл для DDS (DDL/LOAD/DQ) с SCD1/SCD2 и фактом `fact_flight_sales`. - добавлены DAG `bookings_dds_ddl` и `bookings_to_gp_dds`, а также smoke-тесты структуры DAG. - обновлены `sql/ddl_gp.sql` и документация (`README`, `docs/*`, `db_schema`) под поток `stg -> ods -> dds`. - Проверка: - make test.
37 lines
783 B
SQL
37 lines
783 B
SQL
-- Загрузка DDS dim_tariffs: SCD1 UPSERT (INSERT новых тарифов).
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WITH src AS (
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SELECT DISTINCT
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s.fare_conditions
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FROM ods.segments AS s
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WHERE s.fare_conditions IS NOT NULL
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AND s.fare_conditions <> ''
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),
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max_sk AS (
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SELECT COALESCE(MAX(tariff_sk), 0) AS v
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FROM dds.dim_tariffs
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)
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INSERT INTO dds.dim_tariffs (
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tariff_sk,
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fare_conditions,
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created_at,
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updated_at,
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_load_id,
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_load_ts
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)
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SELECT
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(SELECT v FROM max_sk) + ROW_NUMBER() OVER (ORDER BY s.fare_conditions)::INTEGER,
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s.fare_conditions,
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now(),
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now(),
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'{{ run_id }}',
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now()
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FROM src AS s
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WHERE NOT EXISTS (
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SELECT 1
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FROM dds.dim_tariffs AS d
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WHERE d.fare_conditions = s.fare_conditions
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);
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ANALYZE dds.dim_tariffs;
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