PostgreSQL
The World's Most Advanced Open Source Relational Database
Enterprise-grade standard featuring advanced data types (JSONB, PostGIS), battle-tested MVCC architecture, rich indexing (GIN, GiST, BRIN), and an extensible plugin ecosystem.
Identity Card
When to Choose
- •Enterprise production workloads.
When to Avoid
- •Non-specialized simple storage.
Standard memory and disk I/O management.
High availability and replication available.
TLS/SSL encryption and RBAC authorization.
Metrics and slow query telemetry.
Known Production Traps
PostgreSQL Essential Commands4
Verified CLI commands for installation, connectivity, and standard operations.
Yedek alma (Backup) komutu
İsmini belirttiğiniz (mydb) veritabanının full yedeğini almak için kullanılır.
pg_dump -U postgres -F c -b -v -f mydb_backup.dump mydbPostgreSQL servisi durum kontrolü
sudo systemctl status postgresqlLokalde çalışan PostgreSQL veritabanına bağlanma
Yerel makinede çalışan PostgreSQL sunucusuna postgres kullanıcısı ile bağlanıp postgres veritabanını açmanı sağlar. Bağlandıktan sonra SQL komutlarını doğrudan yazabilirsin (örneğin SELECT version();).
psql -U postgres -h localhost -d postgresPostgreSQL & Contrib Paket Kurulumu
Sistemine PostgreSQL’in temel veritabanı motorunu ve ek özelliklerini sağlayan paketleri (uuid-ossp, pgcrypto, hstore) yükler.
sudo apt install postgresql postgresql-contribPostgreSQL Deep Architecture Topics
Deep-dive architectural internals, memory models, MVCC, and replication consensus.
PostgreSQL Shared Buffers & Linux Page Cache Interaction: The Hidden Layer of Memory Management
Comprehensive architectural guide on how PostgreSQL shared_buffers and Linux OS page cache interact, buffered I/O execution pipeline, double caching mechanics, cache hit ratio realities, and dual-layer tuning.
PostgreSQL WAL Architecture, Full Page Writes & Checkpoint Spreading Optimization
Comprehensive technical guide on PostgreSQL WAL architecture, Full Page Writes (FPW), checkpoint spreading via checkpoint_completion_target, and high-write tuning.
PostgreSQL Autovacuum Tuning & XID Wraparound: Preventing the 2-Billion Transaction ID Crisis
Comprehensive architectural guide on PostgreSQL Autovacuum internals, 32-bit transaction ID (XID) aging, tuple freezing, anti-wraparound vacuum mechanics, production capacity planning, and incident runbooks.
PostgreSQL Cheat Sheets
Production-tested operational commands.
Find Long-Running Active Queries & Locks
Lists active queries running longer than 5 minutes, along with client IP, state, and wait event details.
Cancel or Terminate a Blocking Backend Query
First attempts graceful query cancellation; if unresponsive, forcefully terminates the backend PID.
Identify Top Bloated Tables & Dead Tuple Counts
Identifies tables with high dead tuple ratios requiring manual vacuuming or autovacuum tuning.
Find Unused Indexes Wasting Storage and Write I/O
Finds non-primary indexes with zero scans since server restart that degrade INSERT/UPDATE speeds.
Companion Tools & Ecosystem
powered by dataxtoolsCommonly used monitoring, backup, and management tools for this database engine.
Cloud-Scale Deep Database Performance Monitoring & APM Integration
Open Source Database Performance & Security Monitoring Platform
Reliable, High-Throughput Backup & Recovery Engine for PostgreSQL