Implementing Indexes and Optimizing Query Performance
⚡ Indexing & Query Optimization in PostgreSQL
Indexes in PostgreSQL drastically improve query efficiency by providing quick lookup capabilities.
🧱 Common Index Types
- 🔍 B-tree: Ideal for high-selectivity columns
- 📚 GIN: Best for full-text search
🛠️ Create a B-tree Index
CREATE INDEX idx_book_title ON books(title);
📝 Create a GIN Index for Full-Text Search
CREATE INDEX idx_fulltext_content ON articles USING GIN(to_tsvector('english', content));
🔬 Analyze Query Performance
EXPLAIN ANALYZE SELECT * FROM books WHERE title LIKE '%Data%';
📈 Keep Statistics Updated
ANALYZE;
✅ This helps the query planner make smarter decisions for execution paths.
🚀 Effective indexing and regular analysis ensure optimal database performance, even as your data grows.