Managed PostgreSQL can automate infrastructure, patching, backups, replicas, and failover, but you still own schema, queries, indexes, retrieval quality, access policy, capacity, and provider limits. Verify the exact pgvector version, PostgreSQL versions, privileges, networking, regions, backup/restore, replicas, maintenance windows, monitoring, and upgrade path before selecting a service.
Availability and versions change. Link the provider's current primary documentation in your decision record and record the check date.
Use a bootstrap/admin identity to enable approved extensions and create migration/runtime roles. The application role should not administer extensions or schemas. Store credentials in the platform's secret/identity system and require TLS with server verification.
Load a representative dataset, build indexes, run exact and ANN evaluations, test filtered plans, measure ingestion and p95 latency, trigger a maintenance/failover rehearsal, restore to a new instance, and validate RLS. Provider defaults are not your product SLO.
Compare these managed PostgreSQL offerings for pgvector using only dated primary-source evidence [providers]. Evaluate versions, privileges, regions, private networking, identity, HA, PITR, replicas, upgrades, observability, limits, support, and three-year cost. Mark unknowns and design proof tests.
Verification contract: Do not accept a feature until a deployed proof or current provider document confirms it; run restore and failover drills before production approval.