74 lines
2.3 KiB
PL/PgSQL
74 lines
2.3 KiB
PL/PgSQL
-- ============================================
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-- 配送效率分析（按 assigned_at 统计周期，接单 -> 送达）
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-- 依赖表：ml_delivery_tasks, ml_delivery_drivers
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-- ============================================
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-- 1) 每日趋势：平均时效/平均配送费/总配送费/完成单量
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CREATE OR REPLACE FUNCTION public.rpc_delivery_efficiency_daily(
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p_start TIMESTAMPTZ,
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p_end TIMESTAMPTZ
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)
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RETURNS TABLE (
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day DATE,
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completed_orders INTEGER,
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avg_delivery_minutes NUMERIC,
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total_fee NUMERIC,
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avg_fee NUMERIC
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)
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LANGUAGE sql
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SECURITY DEFINER
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SET search_path = public
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AS $$
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SELECT
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DATE(t.assigned_at) AS day,
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COUNT(*)::INTEGER AS completed_orders,
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AVG(EXTRACT(EPOCH FROM (t.delivered_at - t.assigned_at)) / 60.0) AS avg_delivery_minutes,
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COALESCE(SUM(t.delivery_fee), 0) AS total_fee,
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AVG(t.delivery_fee) AS avg_fee
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FROM public.ml_delivery_tasks t
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WHERE t.status = 5
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AND t.assigned_at >= p_start
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AND t.assigned_at < p_end
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AND t.delivered_at IS NOT NULL
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GROUP BY DATE(t.assigned_at)
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ORDER BY day;
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$$;
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-- 2) Top N 配送员：按完成单量排序
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CREATE OR REPLACE FUNCTION public.rpc_delivery_efficiency_top_drivers(
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p_start TIMESTAMPTZ,
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p_end TIMESTAMPTZ,
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p_limit INTEGER DEFAULT 10
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)
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RETURNS TABLE (
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driver_id UUID,
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driver_name TEXT,
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orders INTEGER,
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rating_avg NUMERIC
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)
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LANGUAGE sql
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SECURITY DEFINER
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SET search_path = public
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AS $$
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SELECT
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d.id AS driver_id,
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CAST(d.real_name AS TEXT) AS driver_name,
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COUNT(*)::INTEGER AS orders,
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COALESCE(d.rating_avg, 0) AS rating_avg
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FROM public.ml_delivery_tasks t
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JOIN public.ml_delivery_drivers d ON d.id = t.driver_id
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WHERE t.status = 5
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AND t.assigned_at >= p_start
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AND t.assigned_at < p_end
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AND t.delivered_at IS NOT NULL
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GROUP BY d.id, d.real_name, d.rating_avg
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ORDER BY orders DESC
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LIMIT p_limit;
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$$;
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-- 建议：只允许 authenticated 调用（按你现有 analytics 的做法）
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REVOKE ALL ON FUNCTION public.rpc_delivery_efficiency_daily(TIMESTAMPTZ, TIMESTAMPTZ) FROM PUBLIC;
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REVOKE ALL ON FUNCTION public.rpc_delivery_efficiency_top_drivers(TIMESTAMPTZ, TIMESTAMPTZ, INTEGER) FROM PUBLIC;
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GRANT EXECUTE ON FUNCTION public.rpc_delivery_efficiency_daily(TIMESTAMPTZ, TIMESTAMPTZ) TO authenticated;
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GRANT EXECUTE ON FUNCTION public.rpc_delivery_efficiency_top_drivers(TIMESTAMPTZ, TIMESTAMPTZ, INTEGER) TO authenticated;
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