44 lines
1.4 KiB
SQL
44 lines
1.4 KiB
SQL
-- Date d'ancrage fix. Période 1 = 2023-12-17 => 2023-12-30
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-- Definition des bornes d'archivage et de visionnement futur ( 6 mois avant la periode actuelle et 1 mois apres la periode actuelle)
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-- Label pour affichage
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-- Determination des dates d'une periode
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CREATE OR REPLACE VIEW pay_period AS
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WITH
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anchor AS (
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SELECT '2023-12-17'::date AS anchor_date
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),
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current_pay_period AS(
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SELECT
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((now()::date - anchor_date) % 14) +1 AS current_day_in_pay_period
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FROM anchor
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),
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bounds AS (
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SELECT
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(now()::date
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- INTERVAL '6 months'
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- (current_day_in_pay_period || ' days')::INTERVAL
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)::date AS start_bound,
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(now()::date + INTERVAL '1 month'
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- (current_day_in_pay_period || ' days')::INTERVAL
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)::date AS end_bound,
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anchor.anchor_date
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FROM anchor
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CROSS JOIN current_pay_period
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),
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series AS (
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SELECT
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generate_series(bounds.start_bound, bounds.end_bound, '14 days') AS period_start,
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bounds.anchor_date
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FROM bounds
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)
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SELECT
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((row_number() OVER (ORDER BY period_start) - 1) % 26) + 1 AS period_number,
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period_start AS start_date,
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period_start + INTERVAL '13 days' AS end_date,
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EXTRACT(YEAR FROM period_start)::int AS year,
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period_start || ' -> ' ||
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to_char(period_start + INTERVAL '13 days', 'YYYY-MM-DD')
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AS label
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FROM series
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ORDER BY period_start;
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