PostgreSQL Guides
Browse Elysiate's PostgreSQL guides on performance tuning, indexing, schema design, replication, security, and app-framework best practices.
52 articles in this topic cluster
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- Best PostgreSQL Data Types for Performance
A practical guide to choosing the best PostgreSQL data types for performance, storage efficiency, indexing, and long-term schema design.
- Best PostgreSQL Indexes for Performance
A practical guide to the best PostgreSQL indexes for performance, with examples for common query patterns and the mistakes that make indexes slower instead of faster.
- Best PostgreSQL Tips for Backend Developers
A practical guide to the best PostgreSQL tips for backend developers, with real advice on schema design, indexes, query tuning, JSONB usage, transactions, and production-friendly database habits.
- Common PostgreSQL Mistakes Developers Make
A practical guide to the most common PostgreSQL mistakes developers make, with fixes for schema design, indexing, transactions, migrations, JSONB, pooling, and production-safe query habits.
- Common PostgreSQL Performance Bottlenecks and Fixes
A practical guide to common PostgreSQL performance bottlenecks and fixes, with clear advice on diagnosing slow queries, planner issues, indexing mistakes, vacuum problems, memory pressure, and application-side causes.
- How to Design a Fast PostgreSQL Schema
A practical guide to designing a fast PostgreSQL schema, with clear advice on data types, table layout, indexes, normalization, JSONB, row width, and production-friendly growth patterns.
- How to Find Slow Queries in PostgreSQL
A practical guide to finding slow queries in PostgreSQL, with real workflows for pg_stat_statements, EXPLAIN ANALYZE, pg_stat_activity, log_min_duration_statement, and production-safe troubleshooting.
- How to Monitor PostgreSQL Performance
A practical guide to monitoring PostgreSQL performance, covering the most useful database views, logging settings, I/O indicators, lock signals, and application-side metrics that actually help diagnose bottlenecks.
- How to Optimize Slow PostgreSQL Queries
A practical guide to optimizing slow PostgreSQL queries, with real fixes for scans, indexes, joins, sorting, pagination, JSONB, stale stats, and application-side query design.
- How to Reduce PostgreSQL Table Bloat
A practical guide to reducing PostgreSQL table bloat, including how bloat forms, how to prevent it, how to diagnose it, and when to use VACUUM, REINDEX, VACUUM FULL, CLUSTER, or table rewrites.
- How to Scale PostgreSQL for Millions of Rows
A practical guide to scaling PostgreSQL for millions of rows, covering schema design, indexing, partitioning, query optimization, maintenance, and production-safe growth patterns.
- How to Secure PostgreSQL Connections and Roles
A practical guide to securing PostgreSQL connections and roles, including TLS, host-based authentication, SCRAM, least-privilege role design, public schema hardening, and safer production patterns.
- How to Use PostgreSQL Full-Text Search
A practical guide to using PostgreSQL full-text search, including tsvector, tsquery, GIN indexing, ranking, highlighting, and the patterns that work well in real applications.
- PostgreSQL ANALYZE Command Explained
A practical guide to PostgreSQL ANALYZE, including what statistics it collects, why the planner needs them, when manual ANALYZE helps, and how to avoid stale-statistics performance problems.
- PostgreSQL Backup and Restore Best Practices
A practical guide to PostgreSQL backup and restore best practices, covering logical backups, physical backups, point-in-time recovery, backup verification, restore drills, and the mistakes that cause painful recoveries.
- PostgreSQL Compound Indexes Explained
A practical guide to PostgreSQL compound indexes, including leftmost-column rules, sort order, skip scan, INCLUDE columns, and the query patterns where multicolumn indexes actually help.
- PostgreSQL Connection Pooling with PgBouncer Guide
A practical guide to PostgreSQL connection pooling with PgBouncer, covering session vs transaction pooling, prepared statement behavior, sizing rules, pool settings, and common production mistakes.
- PostgreSQL Covering Indexes and Index-Only Scans
A practical guide to PostgreSQL covering indexes and index-only scans, including INCLUDE columns, visibility-map behavior, index type support, and the query patterns where they actually pay off.
- PostgreSQL CPU, Disk, and I/O Tuning Guide
A practical guide to PostgreSQL CPU, disk, and I/O tuning, including how to diagnose the real bottleneck, which settings matter most, and how to improve read/write behavior without guessing.
- PostgreSQL CTEs vs Subqueries Performance Guide
A practical PostgreSQL guide to CTEs vs subqueries, covering MATERIALIZED, NOT MATERIALIZED, correlated subqueries, EXISTS, planner behavior, and how to choose the fastest shape for real queries.
- PostgreSQL EXPLAIN ANALYZE Guide for Developers
A practical developer guide to PostgreSQL EXPLAIN ANALYZE, including how to read plans, compare estimates to actual rows, interpret buffers and timing, and diagnose real query performance problems.
- PostgreSQL Failover and Disaster Recovery Guide
A practical guide to PostgreSQL failover and disaster recovery, covering standby design, automatic vs manual failover, RPO and RTO, replication slots, PITR, old-primary recovery, and operational testing.
- PostgreSQL for SaaS Applications Best Practices
A practical guide to PostgreSQL best practices for SaaS applications, covering multi-tenant design, security boundaries, query patterns, scaling, and production-ready database habits.
- PostgreSQL Foreign Keys and Performance
A practical guide to PostgreSQL foreign keys and performance, covering write overhead, indexing strategy, delete costs, cascading actions, deferred checks, and safe ways to add foreign keys on large tables.
- PostgreSQL High Availability Architecture Guide
A practical guide to PostgreSQL high availability architecture, covering standby topology, failover design, synchronous replication, replication slots, backup integration, and production-ready operational patterns.
- PostgreSQL Join Performance Optimization Guide
A practical PostgreSQL guide to join performance optimization, covering join algorithms, index strategy, row estimation, join order, memory settings, and the query patterns that make joins fast or painfully slow.
- PostgreSQL JSONB Performance Best Practices
A practical guide to PostgreSQL JSONB performance, covering json vs jsonb, GIN indexing, jsonb_ops vs jsonb_path_ops, expression indexes, update costs, and schema patterns that keep JSON-heavy workloads fast.
- PostgreSQL Log Analysis for Performance Troubleshooting
A practical guide to PostgreSQL log analysis for performance troubleshooting, covering slow queries, lock waits, temp files, auto_explain, structured logs, and how to turn noisy logs into clear performance signals.
- PostgreSQL Maintenance Checklist for Production
A practical PostgreSQL maintenance checklist for production, covering daily, weekly, monthly, and quarterly tasks across vacuuming, backups, monitoring, logging, security, replication, and upgrade readiness.
- PostgreSQL Memory Settings Explained: shared_buffers and work_mem
A practical guide to PostgreSQL memory settings, explaining shared_buffers, work_mem, maintenance_work_mem, effective_cache_size, temp_buffers, and the mistakes that cause memory pressure in production.
- PostgreSQL Migrations Best Practices for Teams
A practical guide to PostgreSQL migration best practices for teams, covering migration files, branching conflicts, backward-compatible schema changes, CI checks, deployment sequencing, and safe rollback planning.
- PostgreSQL Multi-Tenant Database Design Guide
A practical guide to PostgreSQL multi-tenant database design, covering shared schema versus separate databases, tenant IDs, row-level security, indexing, performance isolation, and operational tradeoffs.
- PostgreSQL Normalization vs Denormalization Guide
A practical guide to PostgreSQL normalization versus denormalization, covering joins, redundancy, write complexity, read performance, and when teams should trade strict structure for faster queries.
- PostgreSQL Pagination Performance: OFFSET vs Keyset
A practical guide to PostgreSQL pagination performance, comparing OFFSET pagination and keyset pagination, with tradeoffs around speed, indexing, consistency, large datasets, and API design.
- PostgreSQL Partial Indexes Performance Guide
A practical guide to PostgreSQL partial indexes, covering how they work, when they outperform full indexes, common query patterns, predicate matching, and mistakes that stop the planner from using them.
- PostgreSQL Partitioning Guide for Large Tables
A practical guide to PostgreSQL partitioning for large tables, covering range, list, and hash partitioning, pruning, maintenance benefits, common mistakes, and when partitioning is actually worth it.
- PostgreSQL Performance Tuning for High-Traffic Apps
A practical guide to PostgreSQL performance tuning for high traffic apps, covering hot-path indexing, connection pooling, query optimization, caching, autovacuum, contention, and scale-focused schema design.
- PostgreSQL Query Planner Explained Simply
A practical guide to the PostgreSQL query planner, covering scans, joins, row estimates, statistics, costs, and why PostgreSQL sometimes picks a plan that looks wrong.
- PostgreSQL Read Replicas Explained
A practical guide to PostgreSQL read replicas, covering streaming replication, read scaling, replication lag, failover tradeoffs, consistency issues, and when replicas are the right architecture choice.
- PostgreSQL Row-Level Security Explained
A practical guide to PostgreSQL Row Level Security, covering policies, tenant isolation, USING versus WITH CHECK, application context, common mistakes, and when RLS is the right design choice.
- PostgreSQL Security Best Practices for Production
A practical guide to PostgreSQL security best practices for production, covering access control, network hardening, TLS, role design, Row Level Security, secret handling, monitoring, and incident readiness.
- PostgreSQL Sort and GROUP BY Performance Tuning
A practical guide to PostgreSQL sort and GROUP BY performance tuning, covering sort spills, work_mem, indexes, hash versus sort aggregation, row reduction, and common query design mistakes.
- PostgreSQL Streaming Replication Setup Guide
A practical guide to PostgreSQL streaming replication setup, covering primary and standby configuration, replication users, WAL settings, base backups, lag monitoring, and common mistakes.
- PostgreSQL VACUUM and Autovacuum Explained
A practical guide to PostgreSQL VACUUM and autovacuum, covering dead tuples, table bloat, visibility maps, ANALYZE, transaction ID wraparound, and the common mistakes that make databases slower over time.
- PostgreSQL vs MongoDB for JSON-Heavy Apps
A practical comparison of PostgreSQL vs MongoDB for JSON-heavy apps, covering JSONB, document flexibility, indexing, joins, transactions, analytics, and which database fits which application style.
- PostgreSQL vs MySQL for Modern Web Applications
A practical comparison of PostgreSQL vs MySQL for modern web applications, covering query capabilities, transactions, JSON features, indexing, scaling, developer experience, and which database fits which product style.
- PostgreSQL with .NET and Entity Framework Best Practices
A practical guide to PostgreSQL with .NET and Entity Framework best practices, covering Npgsql setup, DbContext patterns, migrations, indexing, query tuning, JSON support, and production performance.
- PostgreSQL with Node.js Performance Best Practices
A practical guide to PostgreSQL with Node.js performance best practices, covering connection pooling, query shape, batching, indexing, transactions, pagination, and production-ready data access patterns.
- PostgreSQL with Python and SQLAlchemy Performance Guide
A practical guide to PostgreSQL with Python and SQLAlchemy performance, covering engine setup, session scope, query loading strategies, batching, indexing, transactions, and PostgreSQL-aware data access patterns.
- When to Use B-tree vs GIN vs GiST in PostgreSQL
A practical guide to choosing between B-tree, GIN, and GiST indexes in PostgreSQL, covering what each index type is good at, common use cases, performance tradeoffs, and mistakes teams make when picking the wrong one.
- PostgreSQL Performance Tuning: Complete Developer Guide
A practical PostgreSQL performance tuning guide covering indexing, query plans, connection pooling, vacuum, schema design, monitoring, and common production bottlenecks.
- CSV to Database Import: Complete Guide (MySQL, PostgreSQL, SQL Server) - 2025
Master CSV to database imports with our comprehensive guide. Learn SQL import commands, data type mapping, error handling, and best practices for MySQL, Post…