ddadmin
e592b35461
- 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.
89 lines
2.3 KiB
SQL
89 lines
2.3 KiB
SQL
-- DQ для DDS dim_airports.
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DO $$
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DECLARE
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v_row_count BIGINT;
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v_dup_sk BIGINT;
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v_dup_bk BIGINT;
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v_missing_bk BIGINT;
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v_null_count BIGINT;
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BEGIN
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-- Таблица не пуста.
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SELECT COUNT(*)
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INTO v_row_count
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FROM dds.dim_airports;
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IF v_row_count = 0 THEN
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RAISE EXCEPTION 'DQ FAILED: dds.dim_airports пуста.';
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END IF;
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-- Нет дублей по SK.
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SELECT COUNT(*) - COUNT(DISTINCT airport_sk)
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INTO v_dup_sk
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FROM dds.dim_airports;
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IF v_dup_sk <> 0 THEN
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RAISE EXCEPTION
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'DQ FAILED: в dds.dim_airports найдены дубликаты airport_sk: %',
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v_dup_sk;
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END IF;
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-- Нет дублей по BK.
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SELECT COUNT(*) - COUNT(DISTINCT airport_bk)
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INTO v_dup_bk
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FROM dds.dim_airports;
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IF v_dup_bk <> 0 THEN
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RAISE EXCEPTION
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'DQ FAILED: в dds.dim_airports найдены дубликаты airport_bk: %',
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v_dup_bk;
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END IF;
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-- Покрытие ODS: все airport_code из ODS есть в DDS.
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SELECT COUNT(*)
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INTO v_missing_bk
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FROM (SELECT DISTINCT airport_code FROM ods.airports) AS s
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WHERE NOT EXISTS (
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SELECT 1
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FROM dds.dim_airports AS d
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WHERE d.airport_bk = s.airport_code
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);
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IF v_missing_bk <> 0 THEN
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RAISE EXCEPTION
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'DQ FAILED: в dds.dim_airports отсутствуют ключи из ods.airports: %',
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v_missing_bk;
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END IF;
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-- Обязательные поля.
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SELECT COUNT(*)
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INTO v_null_count
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FROM dds.dim_airports
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WHERE airport_sk IS NULL
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OR airport_bk IS NULL
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OR airport_bk = ''
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OR airport_name IS NULL
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OR airport_name = ''
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OR city IS NULL
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OR city = ''
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OR country IS NULL
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OR country = ''
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OR timezone IS NULL
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OR timezone = ''
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OR created_at IS NULL
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OR updated_at IS NULL
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OR _load_id IS NULL
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OR _load_id = ''
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OR _load_ts IS NULL;
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IF v_null_count <> 0 THEN
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RAISE EXCEPTION
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'DQ FAILED: в dds.dim_airports найдены NULL/пустые обязательные поля: %',
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v_null_count;
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END IF;
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RAISE NOTICE
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'DQ PASSED: dds.dim_airports ок, строк=%',
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v_row_count;
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END $$;
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