37 lines
1.1 KiB
SQL
37 lines
1.1 KiB
SQL
-- Загрузка инкремента из stg.bookings_ext в stg.bookings.
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-- Окно инкремента определяется по src_created_at_ts:
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-- берём строки, где book_date больше максимального src_created_at_ts
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-- среди "старых" батчей; верхняя граница по дате не используется.
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INSERT INTO stg.bookings (
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book_ref,
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book_date,
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total_amount,
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src_created_at_ts,
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load_dttm,
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batch_id
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)
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SELECT
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ext.book_ref::text,
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ext.book_date::text,
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ext.total_amount::text,
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ext.book_date::timestamp,
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now(),
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'{{ run_id }}'::text
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FROM stg.bookings_ext AS ext
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WHERE ext.book_date > COALESCE(
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(
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SELECT max(src_created_at_ts)
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FROM stg.bookings
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WHERE batch_id <> '{{ run_id }}'::text
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OR batch_id IS NULL
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),
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TIMESTAMP '1900-01-01 00:00:00'
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)
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AND NOT EXISTS (
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SELECT 1
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FROM stg.bookings AS b
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WHERE b.batch_id = '{{ run_id }}'::text
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AND b.book_ref = ext.book_ref::text
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);
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