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When Rows Don’t Die: MVCC, Index Bloat & How PostgreSQL Stores Your Data

PostgreSQL doesn’t just update rows — it leaves the old ones lying around like forgotten leftovers. It’s called MVCC, and while it’s great for concurrency, it can make your indexes bloated and your queries slow. This blog walks through what really happens inside your DB, how to spot bloat, and what to do about it.

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When Rows Don’t Die: MVCC, Index Bloat & How PostgreSQL Stores Your Data

PostgreSQL EXPLAIN ANALYZE: Decode Your Query Performance Like a Pro

EXPLAIN ANALYZE in PostgreSQL is like turning on X-ray vision for your queries. It lets you peek under the hood of your SQL to see what the planner thinks *and* what actually happened. Whether you're fighting slow queries or just flexing your database muscles, mastering EXPLAIN ANALYZE can save you hours of debugging and boost app performance.

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PostgreSQL EXPLAIN ANALYZE: Decode Your Query Performance Like a Pro

Understanding PostgreSQL MVCC: How Postgres Handles Concurrency Gracefully

MVCC (Multi-Version Concurrency Control) is the backbone of PostgreSQL’s concurrency model. Unlike locking mechanisms that stall readers or writers, MVCC allows multiple transactions to access the database simultaneously without stepping on each other’s toes. This blog dives deep into how PostgreSQL achieves this magic, what snapshots and visibility maps are, and how vacuuming keeps things in check.

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PostgreSQL MVCC Concurrency Explained

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