Fundamentals · Recorded class · Taught by Brent Ozar
Postgres: Fundamentals of Vacuum 2027
How and why Postgres keeps old versions of rows around, how autovacuum tries to clean up, how to tell when it isn’t keeping up, and how to fix it for faster queries.
$195 one payment · recordings through Dec 31, 2026
Buy the recording See what’s inside ↓
One payment, no auto-renew, no refunds. Or get all 10 Fundamentals recordings for $695: Recorded Class Season Pass: Fundamentals →
Curriculum · Every lecture
What’s inside
- About 1 hour
- 3 sections
- 8 lectures
- Taught by Brent Ozar
- Early access more lectures as they’re recorded
Making Sure You're Ready for Class: Free Prerequisites
- Concepts to Grasp First
- Getting Your Computer Ready
Explaining Why Table Performance Degrades
- How Postgres Stores Data in 8KB Pages 12:06
- Unvacuumed Tables are Bigger and Slower 14:20
- How Indexes are Affected Too 12:13
How Autovacuum Tries to Fix It in the Background
- What Autovacuum Does - and Doesn't Do 10:50
- Autovacuum Problem 1: Many Active Tables 16:33
- Autovacuum Problem 2: Blocking on a Single Table 12:27
This class is included in…
Or get all of them.
4 bundles contain this class. Every one is cheaper than buying its classes one at a time, and the recorded passes are about half.
Recorded bundle · 10 classes
Recorded Class Season Pass: Fundamentals
Access through Dec 31, 2026. Every class links to its own page and full curriculum.
$1,950
$695
bought separately · save 64%
Recorded bundle · 13 classes
Recorded Class Season Pass: Fundamentals + Mastering
Access through Dec 31, 2026. Every class links to its own page and full curriculum.
$4,335
$2,195
bought separately · save 49%
Fundamentals · Live class
Fundamentals Week
Live Fundamentals of Index, Query, and Server Tuning, plus the Recorded Class Season Pass: Fundamentals (all 10 recordings), through Dec 31, 2027.
$1,495 one payment
Registration opens October 1, 2026Live Class Season Pass 2027
One pass. Every class. All year.
Fundamentals Week and all three Mastering classes, live, every rotation through Feb 2028. Plus the Recorded Class Season Pass: Fundamentals + Mastering (all 13 recordings) the minute you buy, and your name in the alumni directory.
$4,395 one payment
Registration opens October 1, 2026Prerequisites & logistics
The fine print, in regular-size type.
- Labs (optional)
- Your own Postgres server to follow the demos; the prerequisites walk you through setting one up. Labs are optional; the lectures stand on their own.
- Access
- Recordings through Dec 31, 2026, on training.brentozar.com. One payment, no auto-renew.
- Refunds
- None. Watch the free previews and read the curriculum above first; that’s what it’s there for.
- Purchase orders
- Accepted for 10 or more seats; email help@brentozar.com for a quote. Everything else goes through the website by credit card.
Free, 3× a week
3 posts a week, in your inbox
Plus a Monday roundup of my favorite database news from around the web. No fluff, occasional jokes.
Questions first
Not sure this is the one?
Email help@brentozar.com and tell me what’s slow. It’s me answering, and I’d rather sell you the right class than the biggest one.
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