PostgreSQL Performance Tuning: Indexes, EXPLAIN, and PgBouncer
Measured PostgreSQL performance tuning on a 5M-row table: read EXPLAIN BUFFERS, add composite and partial indexes, fix OFFSET paging, and size PgBouncer.
Bekzod Erkinov
Oct 14, 2026
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Measured PostgreSQL performance tuning on a 5M-row table: read EXPLAIN BUFFERS, add composite and partial indexes, fix OFFSET paging, and size PgBouncer.
Bekzod Erkinov
Oct 14, 2026
Change one integer inside an 8 KB JSONB document and PostgreSQL 17 writes about 16,300 bytes of WAL. Change the same integer when it lives in its own column and it writes 294 bytes. That 55x gap…
Bekzod Erkinov
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Discover PostgreSQL's overlooked performance features that reduced our query times by 85% and saved $12k monthly in infrastructure costs. Real benchmarks, production patterns, and gotchas included.
Bekzod Erkinov
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Reproducible benchmarks of a PostgreSQL partial index, BRIN index, expression index and INCLUDE index on 3M rows, with sizes, plans and when each does nothing.
Bekzod Erkinov
Apr 19, 2026