Supabase vs Cloudflare D1 2026: Edge DB decision guide for query speed, cost, Vector RAG

nn## Supabase vs Cloudflare D1nFor global apps, latency and recovery cost are often stronger than raw throughput. Measure p95/p99 and retry rate first. Use read/write mix, failure budget, and RTO before final migration decision.n### Q1. Which KPI should I check first?nStart with p95, p99, and retry rate.n### Q2. How long should pilot be?nRun at least two weeks with one core path.n### Q3. What decides rollback timing?`nRecovery cost and recurring incident rate. Use read/write mix, failure budget, and RTO before final migration decision.

Use this visual as a second check after reading the previous point.

Use read/write mix, failure budget, and RTO before final migration decision.

Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision.

Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision. Use read/write mix, failure budget, and RTO before final migration decision.