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Pavlo Golub

@pavlogolub.bsky.social
324 followers 119 following 88 posts

PostgreSQL expert at Cybertec PostgreSQL. Programmer. Engineer. 🇺🇦 github.com/pashagolub

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Pavlo Golub @pavlogolub.bsky.social · 13m
Domain 5 of the Open Alliance for PostgreSQL Education DBA-1 certification, all 8 exam topics in one video: the postmaster, background workers, client backends, shared buffers, work_mem & maintenance_work_mem, how dirty buffers reach disk, what WAL is, and WAL buffer and writer youtu.be/BHlPTG4lmow
youtu.be
PostgreSQL DBA-1: Domain 5 — Server Architecture & Background Processes (all 8 exam topics)
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 08/10/2026
PostgreSQL DBA-1: Domains 3 & 4 — Roles, Privileges, Backup & Recovery youtu.be/xUrJZmKO37U?...
youtu.be
PostgreSQL DBA-1: Domains 3 & 4 — Roles, Privileges, Backup & Recovery (all 11 exam topics)
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 07/10/2026
PostgreSQL DBA-1: Domain 2 — Connecting, Database Objects & Basic SQL youtu.be/-ZcEyoLggLA?... #oape #pgconfeu2026
youtu.be
PostgreSQL DBA-1: Domain 2 — Connecting, Database Objects & Basic SQL (all 11 exam topics)
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 29/09/2026
Domain 1 of the Open Alliance for #PostgreSQL Education DBA-1 certification explained! All 14 exam topics in one video: how Postgres gets installed, where it lives on disk, how it's configured and secured, and how it's run and upgraded youtu.be/iIyFH8HSZEA
youtu.be
PostgreSQL DBA-1: Domain 1 — Installation, Versioning & Basic Configuration (all 14 exam topics)
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 19/09/2026
@gopherconeu.bsky.social is the any CfP for the upcoming event in Berlin?
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Pavlo Golub @pavlogolub.bsky.social · 08/09/2026
Follow www.youtube.com/@pavlog-pg for more videos
youtube.com
PAVLOG
Welcome to PAVLOG, a vlog tracking Pavlo Golub across the global open-source ecosystem. This channel writes the "ahead logs" of the Postgres world, capturing everything from international conference ...
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Pavlo Golub @pavlogolub.bsky.social · 08/09/2026
pgwatch v6 ships Patroni overview dashboard. It could not have existed before - and working out why explains the whole feature. The dashboard asks for 22 readings. #Postgres does not know any of these. #Patroni does, on its own metrics endpoint - and until v6, #pgwatch had no way to read it.
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Pavlo Golub @pavlogolub.bsky.social · 07/09/2026
pgwatch v6 is out in beta, and its three headline changes are all the same move: stop running one of everything. Check how 435 goroutines became 28! youtube.com/shorts/Uyk8A... #postgreSQL #monitoring
youtube.com
pgwatch v6: 435 goroutines became 28 #postgresql #monitoring
YouTube video by PAVLOG
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Reposted by Pavlo Golub
CYBERTEC PostgreSQL @cybertec-official.bsky.social · 31/08/2026
We're back with @pavlogolub.bsky.social for another conference vlog, this time from Swiss PGDay 2026 in Rapperswil. Follow our vlog playlist on YouTube so you catch the next one. 🐘 youtube.com/playlist?lis...
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Pavlo Golub @pavlogolub.bsky.social · 26/08/2026
I'm back for another conference vlog, this time from Swiss PGDay 2026 in Rapperswil! www.youtube.com/watch?v=xqyu...
youtube.com
Swiss PGDay 2026 in Rapperswil: A PostgreSQL Conference Vlog with Pavlo Golub | CYBERTEC
YouTube video by CYBERTEC - PostgreSQL Services & Support
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Pavlo Golub @pavlogolub.bsky.social · 26/08/2026
#Linux was released just one day after Ukraine regained its independence from Soviet Union! A coincidence? I don't think so! 😉💙💛 On August 25, 1991, a 21-year-old student sent a message to a Usenet newsgroup. He thought he was just building something fun for himself.
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Pavlo Golub @pavlogolub.bsky.social · 19/08/2026
Bloopers time!
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Pavlo Golub @pavlogolub.bsky.social · 17/08/2026
Also shipped: React 19 WebUI, randomized JWT secrets (bye hardcoded keys 👋), deadlock fixes, graceful sink-outage handling, and Postgres bumped to v19. It's a beta — try it, break it, tell us: github.com/cybertec-pos...
github.com
Release v6.0.0-beta · cybertec-postgresql/pgwatch
pgwatch v6-beta is here 🎉 The biggest release since v5 — full Postgres v19 support, a new source type, fully modernized dashboards, and a reaper core built for reliability at scale. The big three 🔌...
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Pavlo Golub @pavlogolub.bsky.social · 17/08/2026
New metrics you asked for: recovery, stat_lock, settings_num, autovacuum_scores, mem_exceeded_count, wal_fpi_bytes, plus stats_reset across tables/indexes/sprocs. Real production pain points → real fixes.
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Pavlo Golub @pavlogolub.bsky.social · 17/08/2026
🎉 pgwatch v6-beta is out! The biggest release yet: 🔌 Prometheus exporters as a native source 📊 All dashboards rebuilt on Grafana v13 ⚙️ Reaper core rebuilt for parallel, bounded-context collection A monitoring stack that scales with you 🐘 github.com/cybertec-pos...
github.com
Release v6.0.0-beta · cybertec-postgresql/pgwatch
pgwatch v6-beta is here 🎉 The biggest release since v5 — full Postgres v19 support, a new source type, fully modernized dashboards, and a reaper core built for reliability at scale. The big three 🔌...
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Pavlo Golub @pavlogolub.bsky.social · 04/08/2026
New week, and #PAVLOG is back with another conference vlog, this time from #PGConfdev 2026 in Vancouver. youtu.be/6MbohF944eA?...
youtu.be
PGConf.dev 2026 in Vancouver: A PostgreSQL Conference Vlog with Pavlo Golub | CYBERTEC
YouTube video by CYBERTEC - PostgreSQL Services & Support
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Pavlo Golub @pavlogolub.bsky.social · 03/08/2026
Flew to Türkiye for the very first PG Istanbul Meetup! 🇹🇷🐘 Presented my talk, hung out on the roof, crossed the Bosphorus, tasted top-tier doner, and drank way too much tea. Skip the WAL, watch the raw #UNLOGGED cut: youtu.be/XUMb1z3sC8o Show up at a local #PostgreSQL meetup near you! 🚀 #PAVLOG
youtu.be
Postgres Istanbul Meetup #1 [UNLOGGED]
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 31/07/2026
While the official documentary compiles, the raw [#UNLOGGED] cut from #WAWTech+Summer 2026 is live. 🚀 Open-air tech festival vibes at Tor Służewiec, staffing the #Postgres booth, and talking AI-powered beer recommendations! Watch the full drop here: youtu.be/aAGHtQF77r0#...
youtu.be
WAWTech+Summer 2026 [UNLOGGED]
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 28/07/2026
#PAVLOG is back! Now from #Chicago and PG DATA 2026! Join me to the atmosphere of summer blues! Special guest stars Hettie Dombrovskaya, Pat Wright, Carlos A Aranibar! Devrim Gündüz as "Dancing King", and many other cool people! Please tag everyone I forgot in replies! #postgres youtu.be/3AtLTvifldY
youtu.be
PG DATA 2026 in Chicago: A PostgreSQL Conference Vlog with Pavlo Golub | CYBERTEC
YouTube video by CYBERTEC - PostgreSQL Services & Support
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Pavlo Golub @pavlogolub.bsky.social · 22/07/2026
#WAWTech +Summer was wild! Hear the story first! A regular attendee approached to #PostgreSQL booth and asked if he is allowed to wear Slonik costume. We agreed, so the guy was running all over the conference wearing elephant and promoting our booth! 🙂🏃‍♂️‍➡️🚨 youtu.be/ijzNanI3Nxo
youtu.be
WAWTech attendee wearing Postgres mascot
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 17/07/2026
🚀 Registration is OPEN for the PGConf.PL 2026! Be part of history at the very first Polish PostgreSQL community conference this November in Gdańsk. 💰 Use code COMETOGDANSK right now to get 14% off your ticket. ❣️ Register today to secure your spot! 2026.pgconf.pl/registration/ #postgresql
2026.pgconf.pl
Registration - PGConf.PL 2026
Register now for PGConf.PL 2026!
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Pavlo Golub @pavlogolub.bsky.social · 13/07/2026
Only 10 hours left! 2026.pgconf.pl/call-for-pap...
2026.pgconf.pl
Call for Papers - PGConf.PL 2026
Submit your talk for PGConf.PL 2026!
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Pavlo Golub @pavlogolub.bsky.social · 11/07/2026
I'm dropping this as a test to see if you enjoy this faster, unedited format. Check it out and let me know if you want to see more of these!
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Pavlo Golub @pavlogolub.bsky.social · 11/07/2026
In Postgres, an UNLOGGED table skips the write-ahead log for pure speed and zero crash recovery. That’s exactly what this first video is: a fast, uncompressed cut to capture the immediate, boots-on-the-ground vibe from Swiss PGDay 2026 while the team compiles the official documentary.
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Pavlo Golub @pavlogolub.bsky.social · 11/07/2026
We at CYBERTEC usually spend a lot of time producing polished community documentaries, but sometimes you just want to push the raw data straight to the output. Welcome to the [UNLOGGED] experiment for Swiss PgDay 2026! youtu.be/fmXDeIODQ14 #PostgreSQL #SwissPGDay #PAVLOG
youtu.be
Swiss PgDay 2026 [UNLOGGED]
YouTube video by PAVLOG
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Pavlo Golub @pavlogolub.bsky.social · 18/05/2026
One `sudo ip link delete` later, the portal loaded instantly. Choosing #Docker's default subnet for a public hotel WiFi is a personal attack on every developer in the building. Just... why? Because you can? :-D
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Pavlo Golub @pavlogolub.bsky.social · 18/05/2026
After some digging, I found the culprit. It turns out a local Docker bridge on my machine had claimed the exact same 172.20.x.x subnet as the hotel. My laptop wasn't talking to the hotel router, but to itself in a virtual loop!
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Pavlo Golub @pavlogolub.bsky.social · 18/05/2026
The captive portal refuses to load. No internet. I open the terminal and ping the router (172.20.0.1). Some of you may already be having second thoughts... ;-) The response time? 0.052 ms. Really?! Even though I love Canada🇨🇦, I won't believe any hotel lobby router is able to respond in 50 ms.
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Pavlo Golub @pavlogolub.bsky.social · 18/05/2026
Ever had your own laptop gaslight you? 😅 Usually, my daily puzzles involve tuning #PostgreSQL, but today’s challenge was brought to you by hotel WiFi at PGConf.dev 🐘. Me: "I'm just going to quickly connect to the hotel WiFi to check emails." My Linux Laptop: "Absolutely not." 🔽
pgconf.dev
PGConf.dev 2026
PGConf.dev 2026 will be held on May 19–22 in Vancouver, BC to bring users, developers, and organizers together to advance PostgreSQL development.
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Pavlo Golub @pavlogolub.bsky.social · 15/05/2026
I’m excited to share that pgxmock v5.1.0 has officially been released! If you are using pgx for PostgreSQL in Go, this library remains one of the best ways to build robust unit tests without needing a live database. github.com/pashagolub/p... #Golang #PostgreSQL #UnitTesting #OpenSource
github.com
Release v5.1.0 · pashagolub/pgxmock
What's Changed [+] add version policy by @pashagolub in #257 [+] bump actions/checkout from 4 to 6 by @dependabot[bot] in #252 [+] bump actions/setup-go from 5 to 6 by @dependabot[bot] in #255 [+]...
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Pavlo Golub @pavlogolub.bsky.social · 06/05/2026
Two PGDay conferences. Two cities. One week. 🐘 I went from Helsinki to Paris in 48 hours and captured everything on camera…including a special cameo from Svitlana Lytvynenko. 👀 Episode 2 of the CYBERTEC Conference Vlog series is live! Read all about it: www.cybertec-postgresql.com/en/nordic-co...
cybertec-postgresql.com
Nordic Cool Meets Parisian Chic Vlog: Two PGDays, One Week
This blog talks about the vlog series and the episode showcasing the Nordic Pgday 2026 and pgDayParis. Read to know more.
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Pavlo Golub @pavlogolub.bsky.social · 06/05/2026
Some details from the backstage. People helping out Cornelia Biacsics, Linda Leste, Isaac Alves. On the desk photo of Denys Holub and gifts from Volodymyr Katarovskyi, Josef Machytka, Elviie Abdulmennanova and Eugene Kuchansky. A complete set of magical items to attract good luck! 🔮💓
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Pavlo Golub @pavlogolub.bsky.social · 06/05/2026
We’re talking all about "pgcov: Bringing Real Test Coverage to PostgreSQL Code" this year. Hope to see you all in the chat during the event! posetteconf.com/2026/talks/p...
posetteconf.com
pgcov: Bringing Real Test Coverage to PostgreSQL Code | POSETTE: An Event for Postgres 2026
“pgcov: Bringing Real Test Coverage to PostgreSQL Code” is a talk by Pavlo Golub for Livestream 3 of POSETTE: An Event for Postgres 2026.
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Pavlo Golub @pavlogolub.bsky.social · 06/05/2026
Lights, camera, Postgres! 🎬 Behind every 25-minute tech talk is a lot of coffee, a few retakes, and a very quiet house. Recording my POSETTE: An Event for Postgres talk was a great reminder of why I love this community.
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Pavlo Golub @pavlogolub.bsky.social · 24/03/2026
There is a bad and a good being the first. Bad - you're the first, good - you're done early #speaking #pgdaynordic
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Reposted by Pavlo Golub
pgDay Paris @pgday.paris · 16/03/2026
Come see Pavlo Golub (@pavlogolub.bsky.social) talk about "Customizing the Wordle Game Experience with PostgreSQL"! #PostgreSQL #conference #pgDayParis www.postgres...
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Reposted by Pavlo Golub
pgDay Paris @pgday.paris · 28/02/2026
Come see Pavlo Golub (@pavlogolub.bsky.social) talk about "Customizing the Wordle Game Experience with PostgreSQL"! #PostgreSQL #pgDayParis #Conference www.postgres...
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Pavlo Golub @pavlogolub.bsky.social · 14/02/2026
You can tell I'm older than 6! Thanks Elviie Abdulmennanova for the gift! 💙💛
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Pavlo Golub @pavlogolub.bsky.social · 02/02/2026
PostgreSQL has successfully applied to 2026! List of accepted mentoring organizations will be published on February, 19th. Check here for more details on the program summerofcode.withgoogle.com #postgreSQL #gsoc #googlesummerofcode
summerofcode.withgoogle.com
Google Summer of Code
Google Summer of Code is a global program focused on bringing more developers into open source software development.
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Pavlo Golub @pavlogolub.bsky.social · 10/12/2025
Second, it's the first time during a full-scale invasion that I've been able to meet with many Ukrainian IT fellows. Third, this is an opportunity to meet and inspire the local Polish Postgres community. We could start meetups next year, who knows!
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Pavlo Golub @pavlogolub.bsky.social · 10/12/2025
I'm excited to speak at #WAWTECH for several reasons. First of all, it's not a #Postgres-specific conference, and I'm eager to hear exactly what the audience wants to hear from me.
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Pavlo Golub @pavlogolub.bsky.social · 08/09/2025
pgwatch v4.0.0-beta is out! Full PostgreSQL v18 and Grafana v12 support and much more! github.com/cybertec-pos... #postgresql #monitoring
github.com
Release v4.0.0-beta · cybertec-postgresql/pgwatch
What's New This major release introduces several significant updates, new features, bug fixes, and enhancements Important Changes PostgreSQL 18 Metrics total_XXX_time columns are added to table_st...
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Pavlo Golub @pavlogolub.bsky.social · 01/08/2025
js :-P
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Pavlo Golub @pavlogolub.bsky.social · 01/08/2025
Wow! pgxmock project now has 500+ stars! Thanks everyone for your interest and support! #postgresql #golang #TDD #sqlmock github.com/pashagolub/p...
github.com
GitHub - pashagolub/pgxmock: pgx mock driver for golang to test database interactions
pgx mock driver for golang to test database interactions - GitHub - pashagolub/pgxmock: pgx mock driver for golang to test database interactions
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Pavlo Golub @pavlogolub.bsky.social · 30/06/2025
Define best ;-)
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Reposted by Pavlo Golub
Jimmy Angelakos @vyruss.org · 23/06/2025
AUTHOR UNBOXING: PostgreSQL Mistakes and How to Avoid Them! To celebrate the release of my book, you can use code PBAngelakos for 50% OFF until July 1st! youtube.com/shorts/zopxH... Order the book here @manningbooks.bsky.social 👉 mng.bz/D9mR #TechBooks #PostgreSQL #Postgres #OpenSource #Database
youtube.com
AUTHOR UNBOXING: PostgreSQL Mistakes and How to Avoid Them!
YouTube video by Jimmy Angelakos
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Pavlo Golub @pavlogolub.bsky.social · 20/06/2025
New #Golang GC implementation[1] is a wow! I see 20% less memory consumption during high loads with pgwatch[2] tests. It behaves fantastic with a lot of small objects created/freed! #greenteagc 1: github.com/golang/go/is... 2: github.com/cybertec-pos...
github.com
runtime: green tea garbage collector · Issue #73581 · golang/go
Green Tea 🍵 Garbage Collector Authors: Michael Knyszek, Austin Clements Updated: 2 May 2025 This issue tracks the design and implementation of the Green Tea garbage collector. As of the last update...
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Pavlo Golub @pavlogolub.bsky.social · 12/05/2025
Another year, one more coin. Thanks everyone for your contributions to #postgresql! Not only people but all companies too, especially Cybertec!
PostgreSQL 17 release coin for all who contributed to the release
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Pavlo Golub @pavlogolub.bsky.social · 25/03/2025
New golangci-linter issues cool warnings "QF1001: could apply De Morgan's law" I knew I'll use my university diploma one day! 😎
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Reposted by Pavlo Golub
Nordic PGDay @nordicpgday.org · 18/03/2025
And now Pavlo will play a game with us! #postgresql #database #copenhagen
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