Blog · SaaS
Postgres schema patterns for multi-tenant SaaS
Published 2026-01-28 · 9 min read
Row-level security vs schema-per-tenant vs hybrid models—trade-offs for isolation, migrations, and query performance.
Models
Isolation requirements, compliance, and query patterns drive the model. RLS can be powerful but demands careful testing and indexing discipline.
Schema-per-tenant increases operational overhead but can simplify certain compliance stories.
Migrations
Tenant-aware migrations must be backwards compatible and observable; treat migration failures as incidents.
Choosing
Start with the simplest model that meets constraints—complexity is a liability unless it buys measurable safety.
Frequently asked questions
- Do we need dedicated DB per tenant?
- Rarely at early stage; revisit when compliance or noisy-neighbor risk demands it.
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