PostgreSQL Query Optimization: A Step-by-Step Guide
A practical, step-by-step workflow for PostgreSQL query optimization: find slow queries, read plans with EXPLAIN ANALYZE, apply proven fixes, and verify results.
September 6, 2026 · 13 min read
Mobin Yazdanparast
How to Find Missing Indexes in PostgreSQL: 5 Proven Methods
A practical, four-step workflow for PostgreSQL missing index detection using pg_stat views, pg_stat_statements, EXPLAIN (ANALYZE, BUFFERS), and log-based tools — plus a checklist for creating the right index.
September 4, 2026 · 10 min read
Mobin Yazdanparast
PostgreSQL Index Scan vs Sequential Scan Explained
Understand when PostgreSQL chooses an index scan vs sequential scan, how the query planner estimates costs, and how to tune scan behavior for faster production queries.
September 2, 2026 · 11 min read
Mobin Yazdanparast
PostgreSQL Expression Indexes Explained (With Examples)
A practical guide to the PostgreSQL expression index: syntax, the IMMUTABLE requirement, exact planner matching, JSONB and date_trunc examples, and the write-amplification trade-off.
August 31, 2026 · 9 min read
Mobin Yazdanparast
PostgreSQL Partial Indexes Explained (With Examples)
Learn how PostgreSQL partial indexes use a WHERE clause on CREATE INDEX to shrink index size, cut write overhead, and speed up queries that target a hot subset of rows.
August 30, 2026 · 9 min read
Mobin Yazdanparast
PostgreSQL BRIN Index Explained: A Complete Guide
A deep dive into PostgreSQL BRIN indexes: how they work, when to use them over B-tree, and how to configure them for large table optimization with minimal storage overhead.
August 20, 2026 · 9 min read
Mobin Yazdanparast
PostgreSQL GiST Index: When and Why to Use It
A practical guide to PostgreSQL GiST indexes: how they work, when they beat B-tree and GIN, and how to create and verify them with real, runnable examples.
August 19, 2026 · 5 min read
Mobin Yazdanparast
How PostgreSQL Index Internals Actually Work
A deep dive into PostgreSQL index internals, exploring B-tree architecture, CTID heap mapping, MVCC visibility, and scan operations.
August 5, 2026 · 9 min read
Mobin Yazdanparast
What Is a Database Index? A Beginner's Guide
A clear explanation of what a database index is, how it improves data retrieval speed, and the structural trade-offs involved in SQL index creation.
August 4, 2026 · 9 min read
Mobin Yazdanparast
PostgreSQL Indexing: Complete Guide for Devs
A practical guide to PostgreSQL indexing strategies. Learn how to choose the right index types, optimize query performance, and avoid common pitfalls.
August 1, 2026 · 9 min read
Mobin Yazdanparast