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Technologies — Databases & storage

PostgreSQL performance tuning, indexing & scaling

We find and fix what slows PostgreSQL down (query plans, indexes, connection pooling and vacuum), measured with EXPLAIN ANALYZE before and after.

Core capabilities

Why we build with PostgreSQL

01

EXPLAIN ANALYZE-driven optimization

Removing unnecessary sequential scans, fixing bad planner statistics and adding multi-column partial indexes.

02

Connection pooling with PgBouncer

Managing thousands of client connections with transaction-mode pooling to avoid backend memory bloat.

03

Autovacuum & bloat remediation

Tuning autovacuum scale factors, table fillfactors and index repack routines.

Use cases

Where PostgreSQL fits

High-concurrency SaaS databases

Getting more throughput from the hardware you already pay for, before reaching for sharding or bigger instances.

Time-series & financial table partitioning

Declarative range partitioning by date, so queries and maintenance stay fast as tables grow.

migrations/optimize_indexes.sqlsql
-- Add partial index for active subscription lookup
CREATE INDEX CONCURRENTLY idx_subscriptions_active_tenant
ON subscriptions (tenant_id, status)
WHERE status IN ('active', 'trialing');

-- Tune table autovacuum for high-update tables
ALTER TABLE account_balances SET (
  autovacuum_vacuum_scale_factor = 0.05,
  autovacuum_vacuum_cost_limit = 1000
);

Technical FAQs

Frequently asked engineering questions

PostgreSQL runs a separate backend process for every connection, each with its own memory, so thousands of idle connections waste RAM and CPU. We put PgBouncer in transaction mode in front, so many clients share a small pool.

We use pg_repack to rebuild bloated tables and indexes online without taking exclusive table locks.

Ecosystem

Related technologies

All 48 technologies

Planning a PostgreSQL project?

Tell us about your architecture, backlog and team. We'll reply within one business day with an honest read on whether we can help.