-- no cell survives the HAVING: the global group still has its one row (0 orders, NULL sum)
-- shape: item-summary-rollup
-- expect: agg
-- key: -
-- scenario: yes
WITH base AS (
  SELECT o.id AS order_id, o.country_code AS cc, i.category AS mc, i.kind AS mk, i.qty, i.price
  FROM orders o CROSS JOIN LATERAL jsonb_to_recordset(o.items) AS i(category text, kind text, qty int, price float8, discount float8)
  WHERE o.tenant_id < 120 AND o.deleted_at IS NULL)
SELECT count(DISTINCT order_id) AS orders, count(*) AS cells, sum(units) AS units
FROM (SELECT order_id, mc AS category, mk AS kind, sum(qty) AS units FROM base GROUP BY order_id, mc, mk HAVING sum(qty) > 100000
      UNION ALL
      SELECT order_id, mc, NULL::text, sum(qty) FROM base GROUP BY order_id, mc HAVING sum(qty) > 100000) x