-- Median days from shipping to delivery, storefront parcels
-- Median of delivery time less ship time, in days, over storefront parcels delivered in the month.
SELECT strftime(p.delivered_at, '%Y-%m') AS month, median(epoch(p.delivered_at - p.shipped_at) / 86400.0) AS value FROM (SELECT s.*, o.market_code, o.pincode_tier FROM logistics.shipment s JOIN commerce.order o USING (order_id) WHERE s.shipment_type = 'order' AND o.b2b_account_id IS NULL) p WHERE p.delivered_at IS NOT NULL AND p.status NOT LIKE 'rto%' AND p.delivered_at >= TIMESTAMP '2023-10-01' AND p.delivered_at < TIMESTAMP '2026-10-01' GROUP BY 1 ORDER BY 1