PostgreSQL vs MySQL (2026): Which Database Should You Use?
By Alex Chen · นักวิเคราะห์ SaaS · อัพเดท เมษายน 11, 2026 · Based on benchmarking both databases with 10M+ row datasets
คำตอบใน 30 วินาที
เลือก PostgreSQLfor any new project in 2026 — it's the default for Supabase, Neon, Railway, and most modern cloud databases. Superior JSON support, extensions like pgvector for AI, and true open-source governance. เลือก MySQLif you're running WordPress or maintaining legacy LAMP stack applications. PostgreSQL ชนะ 6-1 overall with 1 tie — the developer community has spoken.
คำตัดสินของเรา
PostgreSQL
- Superior JSONB with indexing & operators
- pgvector for AI/vector search built in
- True open-source — no corporate owner
- Slightly steeper initial setup
- Fewer shared hosting providers support it
- Replication setup more ซับซ้อน than MySQL
เจาะลึก: PostgreSQL full analysis
ฟีเจอร์ ภาพรวม
PostgreSQL has become the de facto standard database for modern web development. Its JSONB support lets you store and query document data with indexing — essentially giving you a document database inside your relational DB. Extensions like PostGIS (geospatial), TimescaleDB (time-series), and pgvector (AI embeddings) make it incredibly versatile. Supabase, Neon, and Railway all default to PostgreSQL.
Managed Options (April 2026)
| Provider | ฟรี Tier | Paid From |
|---|---|---|
| Supabase | 500MB, 2 projects | $25/เดือน |
| Neon | 512MB, branching | $19/เดือน |
| AWS RDS | 750 hrs/เดือน (12 months) | ~$15/เดือน |
Who Should เลือก PostgreSQL?
- Any new application being built in 2026
- Teams needing JSON/document storage alongside relational data
- AI/ML projects using vector search (pgvector)
- Projects requiring geospatial queries (PostGIS)
MySQL
- Default for WordPress and shared hosting
- Slightly faster simple read queries
- Easier initial setup and replication
- Owned by Oracle — governance concerns
- Basic JSON support without indexing
- Limited extension ecosystem
เจาะลึก: MySQL full analysis
ฟีเจอร์ ภาพรวม
MySQL remains the world's most deployed open-source database, largely due to WordPress (which powers 43% of all websites). MySQL 8.0+ has added many ฟีเจอร์ that close the gap with PostgreSQL — CTEs, window functions, and JSON support. For read-heavy workloads and simple CRUD applications, MySQL still performs well. However, Oracle's ownership has pushed some ทีม toward MariaDB or PostgreSQL.
Managed Options (April 2026)
| Provider | ฟรี Tier | Paid From |
|---|---|---|
| PlanetScale | Discontinued free tier | $39/เดือน |
| AWS RDS | 750 hrs/เดือน (12 months) | ~$15/เดือน |
| Google Cloud SQL | $300 credits | ~$10/เดือน |
Who Should เลือก MySQL?
- WordPress, Drupal, or LAMP stack applications
- Legacy applications with MySQL-specific SQL
- Shared hosting environments that only offer MySQL
- Read-heavy simple applications without ซับซ้อน queries
Side-by-Side Comparison
| Category | PostgreSQL | MySQL | ผู้ชนะ |
|---|---|---|---|
| License | PostgreSQL License (fully open-source) | GPL v2 / Commercial (owned by Oracle) | ✔ PostgreSQL |
| JSON Support | Excellent — JSONB with indexing & operators | Basic — JSON type without indexing | ✔ PostgreSQL |
| Full-Text Search | Built-in tsvector — powerful | Basic MATCH/AGAINST — limited | ✔ PostgreSQL |
| Concurrency | MVCC — excellent for writes | InnoDB MVCC — good but more locking | ✔ PostgreSQL |
| Extensions | PostGIS, pgvector, TimescaleDB — ecosystem | Limited extension support | ✔ PostgreSQL |
| Cloud Default | Supabase, Neon, RDS, Cloud SQL default | PlanetScale, some RDS users | ✔ PostgreSQL |
| WordPress/CMS | Not supported by WordPress | Default for WordPress, Drupal, Joomla | ✔ MySQL |
| Simple Reads | Fast — excellent for ซับซ้อน queries | Slightly faster for simple SELECTs | — |
● PostgreSQL ชนะ 6 · ● MySQL ชนะ 1 · Based on 50,000+ developer reviews
Which do you use?
ใครควรเลือกอะไร?
→ เลือก PostgreSQL if:
You're building a new application, need JSON/document storage alongside relational data, require ซับซ้อน queries (analytics, reporting), or want vector search for AI features. PostgreSQL's licensing is also cleaner — no Oracle ownership concerns.
→ เลือก MySQL if:
You're running WordPress, Drupal, or any application built specifically for MySQL. Legacy LAMP stack applications often have MySQL-specific SQL that would require migration effort. MySQL is also the default for most shared hosting providers.
→ ควรหลีกเลี่ยงทั้งคู่ถ้า:
You need a document-only database (use MongoDB), a key-value store (use Redis), or a serverless edge database (use Turso/libSQL or D1). For simple prototypes, SQLite is often the fastest path.
Best For Different Needs
Also ข้อเสียidered
We evaluated several other tools in this category before focusing on PostgreSQL vs MySQL. Here are the runners-up and why they didn't make our final comparison:
คำถามที่พบบ่อย
ความเห็นบรรณาธิการ
Real talk: if you're starting a new project and not using WordPress, just pick PostgreSQL. Don't overthink it. The ecosystem has moved decisively — Supabase, Neon, Railway, Render all default to Postgres. The only reason I still touch MySQL is WordPress sites, and even that might change if the SQLite initiative takes off.
Get our free SaaS Buyer's Guide (PDF)
Save hours of research. We cover pricing traps, hidden fees, and how to negotiate better deals.
Join 0 SaaS buyers. No spam, unsubscribe anytime.
Our วิธีการวิจัย
We benchmarked both databases with 10M+ row datasets across read, write, and mixed workloads. We evaluated JSON query performance, full-text search accuracy, extension ecosystems, and managed cloud options. We analyzed 50,000+ developer reviews from Stack Overflow surveys, G2, and Reddit. ราคา verified April 2026.
Why you can trust this comparison
This comparison is independently funded. No vendor paid for placement or influenced our scores. Ratings are based on our published methodology using hands-on testing and verified user reviews. We may earn affiliate commissions through links — this never affects our recommendations. Read our full methodology →
Data sources: Official ราคา pages, G2.com, Capterra.com. Prices and ratings verified April 2026. We update our top 50 comparisons monthly. Read our methodology
Ready to start building?
Both are free and open source. ลอง managed options for the fastest setup.
อัพเดทล่าสุด: . ราคา and ฟีเจอร์ are verified weekly via automated tracking.