Why PostgreSQL MVCC Scales Better Than Lock-Based Reads for Read-Heavy Workloads
A dashboard query runs while a background job updates ten thousand rows. In a lock-based engine, that SELECT waits—sometimes for seconds—until every…
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PostgreSQL Table Bloat and Defragmentation: Autovacuum vs VACUUM vs VACUUM FULL
When rows are updated or deleted in PostgreSQL, the database does not immediately remove the old row versions from the table. Instead, PostgreSQL us…