PostgreSQL - Indexes

Date: 2024-06-07

PostgreSQL indexes dramatically speed up data retrieval in tables by providing faster lookups based on column values, similar to a book's index. Various index types exist, each optimized for different scenarios: B-tree (default, versatile), Hash (equality checks), GiST (complex data types), GIN (arrays, full-text search), and BRIN (large tables). While beneficial for SELECT queries, indexes can add overhead to INSERT, UPDATE, and DELETE operations. Choosing the right index type and proper maintenance are crucial for optimal PostgreSQL database performance. Read more: https://www.javacodegeeks.com/postgresql-indexes.html